Pump FIAT PUNTO 1996 176 / 1.G Owner's Guide

2C*2 Diesel engine in-car repair procedures
5.11 Special Fiat tool necessary to accurately position the camshaft before fitting the sprocket
Camshaft sprocket Removal 11 Remove the timing belt as descnbed in Section 4. A special Rat tool (see illustration) is necessary to position the camshaft before refitting the sprocket, however il the original camshafl Is being re-used, use of the special tool can be ovoided by accurately marking the camshaft position before removing the sprocket. Caution: On later 1996 models the camshaft sprocket can be moved In either direction on tho camshaft location dowel. 12 The camshaft sprocket must now oe held stationary whilst the retaining bolt is loosened. This is no problem on later models where the sprocket incorporates holes, however some early models have a sprocket without holes • on this type Fiat technicians use a special tool
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To make a camshaft sprocket holding tool, obtain two lengths of steel strip about 6 mm thick by 30 mm wide or simllar, one 600 mm long, the other 200 mm long (all dimensions approximate). Bolt the two strips together to form a forked end, leaving tho bolt slack so that the shorter strip can pivot freely. At the end of each 'prong' of the fork, secure a bolt with a nut and a locknut, to act as the futcrums; theso will engage with the cut'Outs In the sprocket, and should protrude by about 30 mm
which clamps on the sprockot teeth. If this tool is not available, it may be possible to make up a similar tool. On later models a sprocket holding tool can easily be made (see Toot Tip). 13 On 1996-on models mark the position of the camshaft in relation to the cylinder head.
5.14a Unscrew and remove the bolt and washer...
This is best achieved by removing tho vacuum pump from the flywheel end of the head and marking the head in relation to Ihe drive slot in ihe end of the camshaft. Note the location of the hose and bracket when removing tha vacuum pump (seo illustration). 14 Unscrew and remove tho boll and v/ashof and withdraw the sprocket from the end of tha camshaft (see Illustrations). Note tha location peg on the camshafl. Inspection 15 With the sprocket removed, examine the camshaft oil seal for signs of leaking. If necessary, rater to Section 7 and renew it 16 Check the sprocket teeth for damage. 17 Wipe clean the sprocket and camshaft mating surfaces-Refitting 18 Locate the sprocket on the end of the camshaft. On J996-on models chock that the camshaft is positioned accurately to tho previously made marks and also make sura thai the TOC mark on Ihe sprocket Is aligned with the mark on the Inner timing cover. If avoiiablo use the special Fiat toot to locate the camshaft correctly. Rofil the bolt and washer and tighten lo the specified torque while holding the camshalt sprocket stationary using the method descnbed previously. Recheck all alignment marks. 19 Refit the timing belt as described in Section 4.
Crankshaft sprocket Caution: The crankshaft sprockot retaining bolt has a left-hand thread. Removal 20 Remove the timing belt as described in Section 4. 21 Working beneath the engine unbolt and remove the flywheel lower cover, than hold the flywheel stationary preferably using a tool which engages the flywheel starter ring gear (see Section 10). Alternatively have an assistant engage a wide-bladed screwdriver with the starter ring gear 22 Unscrew and remove (he crankshaft sprocket retaining bolt (left-hand thread), washer and spacer and slide the sprocket off the end of the crankshaft (see illustrations). It is quite tight and il will be necessary to use a
5.14b ... and remove the sprocket from tho end of the camshaft 5.22a Unscrew and remove the bolt, washer and spacer... 5.22b ... and remove the crankshaft sprocket

Diesel engine in-car repair procedures
2C*11

5.31c ... followed by the Woodruff key
rocking motion to remove It, Note that the sprocket Is located by an integral key. Inspection 23 With the sprocket removed, examine the crankshaft oil seal for signs of leaking. If necessary, refer to Section 8 and renew it. 24 Check the sprocket teeth for damage. Also check the key and if necessary renew it. 25 Wipe clean the sprocket and crankshaft mating surfaces. Refitting 26 Slide the sprocket onto the crankshaft and engage the key with the slot In the crankshaft. 27 Refit the bolt, washer and spacer and tighten the bolt to the specified torque white holding the crankshaft stationary using the method described in paragraph 21. 28 Refit the timing belt as described in Sectton 4.
6.3a Support bracket positions on the camshaft cover
5.31a Use a puller to release the sprocket from the injection pump shaft
5.35 Tightening the injection pump sprocket bolt
Injection pump sprocket
Removal 29 Remove the timing belt as described In Section 4. 30 Using a suitable tool hold Ihe injection pump sprocket stationary, then unscrew the nut securing the sprocket to the injection pump shaft (see illustration). 31 Using a suitable puller remove the sprocket from the end of the injection pump shaft and recover the Woodruff key from the groove (see illustrations),
Inspection 32 With the sprocket removed, check the sprocket teeth for damage. Also check the key and if necessary renew It. 33 Wipe clean the sprocket and injection pump shaft,
5.31b Removo tho injection pump sprocket...
Refitting 34 Locate the key in the groove making sure that it is fully Inserted and parallel with the shaft surface. 35 Refit the sprocket onto the Injection pump shaft then refit the bolt and washer and tighten the bolt to the specified torque while holding the sprocket stationary (soe illustration). 36 Refit the timing belt as described In Section 4,
6 Camshaft cover -removal and refitting ^
Removal 1 Remove the air ducting from the camshaft cover as described in Chapter 40, Section 2. 2 Unclip the coolant hoses from the camshaft cover and tie them out of tho way. 3 Note the position of the support brackets then progressively unscrew the mounting bolts from the top of the camshaft cover and lilt off the cover (see illustrations). If it sticks, do not attempt to lever it off • instead free it by working around the cover and tapping it lightly with a soft-faced mallet. 4 Recover the camshaft cover gasket. Inspect the gasket carefully, and renew It if damage or deterioration is evident (see illustration). 5 Clean the mating surfaces of the cylinder head and camshaft cover thoroughly, removing all traces of oil and old gasket • take oaro to avoid damaging the surfaces as you do this.
6.4 ... and gasket

2C*2 Diesel engine in-car repair procedures
Refitting 6 Locate a new gasket on the cylinder head and make sure tt Is correctly seated. 7 Lower the cover onto the gasket making sure the gasket Is not displaced, 8 Insert the mounting bolts and tighten them securely In a progressive sequence. Position Ihe support brackets as noted during removal. 9 Clip ihe coolant hoses in position then refil the air ducting.
7 Camshaft oil seal -renewal
8 Crankshaft oil seals -renswal I
9 Cylinder head -
removal
and refitting
1 Remove the timing belt and camshaft sprocket as descnbed in Sections 4 and 5. 2 Using a suitable hooked instrument, remove tho oil seal from the cylinder head taking care nol to damage the surface of the camshafl. Alternatively drill a small hole In tho oil seal and Insert a self-topping screw - the seal can then be removed by pulling on the screw with a pair of pliers. 3 Clean the seating In the cylinder head and tho end of the camshaft To prevent damage to the new oil seal as It is being fitted, wrap some adhesive tape around the end ol the camshaft and lightJy oil it. 4 Dip tho new ail s«al In oil then locate it over Ihe camshaft making sure that the sealing lips are facing inwards. 5 Using a suitable tubular drift, drive the oil seal squarely into the cylinder h*ad. Remove the adhesive tap© 6 Refit the camshaft sprocket and timing belt with reference to Sections 6 and 4.
Front (right-hand side) oil seal t The front oil seal is located in the oil pump casing on the front of the crankshaft. Remove the timing belt as described in Section 4 and the crankshaft sprocket as described in Section 5, 2 Using a suitable hooked instrument, remove the oil seal from the oil pump casing taking care not to damage the surface of the crankshaft. Alternatively drill a small hole In the oil soal and insert a self-tapping screw - the seal can then be removed by pulling on the screw with a pair of pliers. 3 Clean the seating in the oH pump and the surface of the crankshaft. To prevent damage to the new off seal as It Is being fitted, wrap some adhesive tape around the end of tha crankshaft and lightly oil it. 4 Oip the new oii seal In oil then otter it up to the oil pump casing making sure that the sealing Hps are facing inwards,
8.Ba Rear oil soal and housing
5 Using a suitable tubular drift, driva the oil sea! squarely into the casing. Remove the adhesive tape. 6 Refit the crankshaft sprocket and timing belt with reference to Sections 5 and 4.
Rear (left-hand side) oil seal Note: The following paragraphs describe renewal of the rear oil seal leaving the housing In position. The alternative mathod is to remove the housing and renew the oil seel on the bench, however there is then the possibility of damaging the sump gasket. Refer to Chapter 2D for details of removing the mar oil sea! housing. 7 Ramove the flywheel as described in Section 10. 8 Using a suitable hooked Instrument. remove 1he oil seat from the roar oil seal housing taking care not to damage Ihe surface of Ihe crankshaft. Alternatively dnll a small hole In the o» seal and insert a self-tapping screw - the seal can ihan be removed by pulling on the screw with a pair of pliers (see Illustrations), 9 Clean the seating in the housing and the surface of the crankshaft. Check the crankshaft for burrs which may damage the oil seal tip of tno new saal, and It necessary use a Una file to removothem. 10 Dip the new soal in clean engine oil and carefully tocato it over tho crankshafl rear Range making sure that
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the correct way round. 11 Progressively tap the oH seal into the housing keepfng it square to prevent distortion. A block of wood is useful for this purpose. 12 Refit the flywheel with reference to Section 10.
I
5.8b Using a self-tapping screw and pliers to remove the rear oil seal
Removal Note: The cylinder head bolts are of special splined design and a Fiat tool should be obtained to unscrew them. A Torn key will
not
fit however In practise It was found that a close-fitting Allen key could bo used as an alternative. 1 Disconnect the battery negative terminal (refer to Disconnecting the battery in the Reference Section of this manual), 2 Remove tha battery as described In Chapter 5A. 3 Refer to Chapter IB and carry out the following: o) Drain the engine oil, b) Drain the cooling system. 4 Remove the timing belt as described in Section 4. 5 Unbolt and remova the relay guard and bracket from the left-hand side of the engine. 6 Unbolt and remove the battery mounting tray and disconnect the wiring and lines from the modulator valva and relays. 7 Remove the air eleanar assembly and air duct with reference lo Chapter 4C. 8 Loosen the clip and disconnect the vacuum hosa from the vacuum pump on the left-hand end of the cylinder head. 9 Loosen Ihe clips and disconnect the radiator top hose from the cylinder head outlet. Also disconnect the heater inlet hose from the thermostat housing, 10 Loosen the clips and disconnect the expansion tank and heater outlet hoses. 11 Identify all wiring connectors then disconnect them from the cylinder head, 12 Unscrew the expansion tank mounting screws, then disconnect tha expansion tank hoses at their connections to the engine. Remove the expansion tank from tha engine compartment. 13 Release tha clip and disconnect ihe crankcase breather from the left-hand rear of the cylinder head. 14 Unbolt the power steering pump uppar cover bracket then unscrew the pivot ana adjustment bolts while leaving ihe tMd lioses still attached. Release the drivebelt (if still In place) then tie the pump to the bulkhead. 15 Loosen tha clips and disconnect Ihe short coolant hose from the cylinder head outlet to the coolant pump (soe illustration). 18 At the rear of the engine, unbolt and disconnect the oil delivery pipe from the turbocharger (where applicable) and crankcase (see Illustrations). 17 Disconnect the return hose from tha thermostat housing to the coolant pump (see Illustration), 18 Unbolt the metal coolant return pipe and pull it out from the coolant pump inlet elbow (see Illustrations).
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Diesel engine in-car repair procedures
2C*11

9.15 Short coolant hose from the cylinder head outlet to the coolant pump 19 Where applicable, unscrew the bolts retaining the bracket to the turbocharger and thecrankcase (see illustration). 20 Unscrew the nut and slide the timing belt tensioner off Its stud.
9,17 Disconnecting the return hose from the thermostat housing
9.18a Metal coolant rotum pipe mounting bolt
injection pump
9.16a Disconnecting the oil delivery pipe from the turbocharger 21 Release the fuel supply and return hoses from the supports on the cylinder head. 22 Unscrew the union bolt and disconnect the fuel supply hose from the filter on the bulkhead. 23 Loosen the clip and disconnect the fuel return hose from the injection pump. 24 Unscrew Ihe union nuts while holding insert fiats, and disconnect the fuel supply lines from the Injectors and injection pump (soo illustration). Cover tho apertures to prevent dust entry. 25 Disconnect the glow plug supply wiring from the terminal on No 4 glow plug heater on the front left-hand side of the engine. 26 Disconnect the wiring from the maximum coolant temperature connector on the front of the engine. 27 Disconnect the fuel return line from No 1 Injector.
9.18b Removing the metal coolant return pipe from the coolant pump
9.31a Bolts securing the inner timing cover to the cyllndor head
9.16b Oil delivery pipe location on the crankcase 28 Unscrew the nuts securing the exhaust front pipe to the exhaust manifold. Where necessary, use a screwdriver to bend back the lock tabs. Lower the front pipe and recover the gasket. 29 Where applicable, remove the clip and disconnect the oil return hose from the turbocharger to the sump. 30 Remove the camshaft sprocket as described in Section 5. 31 Unscrew the bolts securing the timing belt inner cover to the cylinder head and injection pump bracket, then remove the inner cover (see illustrations). 32 Unbolt and remove the camshaft cover and recover the gasket. Note the location of the support brackets. 33 Unscrew and remove the bolts and washers located on the front of the cylinder head, alongside the injectors (see illustration),
9.19 Unbolt the bracket retaining the turbocharger and manifold to the crankcase
9.31b Removing the bolts securing the Inner timing cover to the injection pump/oll Alter bracket

Diesel engine in-car repair procedures 2C*11

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9.46a The locating dowel in the cylinder block 43 It is possible for the ptston crowns to stnke and damage the valve heads, if the camshaft is rotated v/ith the timing belt removed and the crankshaft set to TDC. For this reason, the crankshaft must be set to a position other than TDC on No t cylinder before the cylinder head is refitted. Use a socket on the crankshaft pulley centre bolt to turn the crankshaft in its normal direction of rotation, until all four pistons are positioned Halfway down their bores, v/ith No 1 piston on lis upstroke - approximately 90° before TDC.
Refitting 44 If the manifolds are being refitted before refitting the cylinder head proceed as follows, otherwise fit the manifolds later when the head is refitted. Ensure thai the inlet and exhaust manifold mating surfaces are completely clean, then locale the new gasket on the studs. 45 Locate the inlet and exhaust manifolds together with the turbocharger, where applicable, on the studs. Refit the nuts and washers and tighten to the specified torque.
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9.52b Tighten the cylinder head bolts to the Stage 1 and Stage 2 settings using a torque wrench
on the block 46 Lay the new head gasket on the cylinder block engaging it with the locating dowel. The word ALTO must be uppermost (see illustrations). 47 As a means of locating Ihe cylinder head accurately, cut the heads from two of the old cylinder head bolts. Cut a slot, big enough for a screwdriver blade, in the end of each bolt. These can be used as alignment dowels to assist in cylinder head refitting, however If the head is being refitted without the manifolds it is not necessary to take this action. 48 With the help of an assistant, place the cylinder head assembly centrally on the cylinder block ensuring thai the locating dowels engage with Ihe holes in the cylinder head. Check that the head gasket Is correctly seatod before allowing the full weight of the cylinder head to rest on it. 49 Where necessary, unscrew the home-made alignment dowels, using a flat bladed screwdriver. 50 The oyllnder head bolt threads must be clean. Dip the bolts in engine oil. and allow them to drain for thirty minutes. 51 Carefully enter each bolt with washer into its relevant hole (do not drop them in) and screw in, by hand only, until finger-tight. 52 Working progressively and In the sequence shown, first tighten the cylinder head bolts to their Stage 1 torque setting, using a torque wrench and suitable socket (see illustrations). Go round again, in the sequence shown, and tighten the bolls to the Stage 2 torque setting. 53 Once all the bolts have been tightened to their Stage 2 setting, working again in the
bolts to the Stage 3 and Stage 4 settings
9.46c The word ALTO must be uppermost
given sequence, angle-tighten the bolts through the specified Stage 3 angle, using a socket and extension bar (see illustration). It Is recommended that an angle-measuring gauge is used during this stage of the tightening, to ensure accuracy. If a gauge is not available, use white paint to make alignment marks between the bolt head and cylinder head prior to tightening; the marks can then be used to check tho bolt has been rotated through the correct angle during tightening. Repeat for the Stage 4 setting. 54 Refit the cylinder head front retaining bolts and tighten lo the specified torque. 55 Refit the camshaft cover together with a new gasket and tighten the bolts progressively to the specified torque. 56 The remaining procedure is a reversal of the removal procedure noting the following points. a) Tighten all nut and bolts to the specified torque where given. b) When refitting the metal coolant pipe to the coolant pump, use a new O-ring (see illustration). cj Refit the timing belt with reference to Section 4. d) Use a new exhaust front pipe gasket. e) Refit the auxiliary dhvebeltfs) as described in Chapter 1B. f) Refer to Chapter 4C when refitting the
air
cleaner and air duct. g) Refill the cooling system and fill the engine with new oil with reference to Chapter 1B. 57 Refer to Chapter 20 when starting the engine for the first time.
9.56 Use a new O-ring on the coolant pipe before refitting it to the pump

11.15 Left-hand engine mounting viewed from below 9 lower the engine sufficiently to remove the mounting from the engine bracket. 10 Locate the new mounting in the engine bracket, refit the nut and washers and tighten securely. 11 Raise the engine and refit and tighten the mounting-to-body bolts. 12 Remove the trolley jack and lower the vehicle to the ground. Left-hand mounting 13 If not already done, firmly apply the handbrake, then jack up the front of the car and support It securely on axle stands (see
Jacking
and vehicle support). 14 Place a trolley jack beneath the trans-mission. with a block of wood on the jack head. Raise the jack until it is supporting the weight of the engine/transmission. 15 Unscrew the bolts securing the left-hand mounting to the body (see Illustration). 16 Unscrew the nut securing the mounting to the transmission bracket and recover the washers. 17 Lower the transmission sufficiently to remove the mounting from the transmission bracket. 18 Locate the new mounting in the transmission bracket, refit the nut and washers and tighten securely. 19 Raise the engine and refil and tighten the mounting-to-body bolts. 20 Remove the trolley jack and lower the vehicle to the ground. Rear mounting 21 If not already done, firmly apply the handbrake, then jack up the front of the car and support it securely on axle stands (see
Jacking
and vehicle support). 22 Working beneath the vehicle, unscrew the bolts securing the rear engine mounting to the underbody (see illustration). 23 Temporarily support the weight of the engine/transmission using a trolley jack. 24 Unbolt the rear mounting assembly from the transmission and withdraw from under the vehicle. 25 Unscrew the bolt and separate the bracket from the mounting. 28 Fitting the new mounting is a reversal of tha removal procedure.
Diesel engine in-car repair procedures 2C*11
11.22 Rear engine mounting viewed from below
12 Sump -removal and refitting
Removal 1 Disconnect the battery negativo terminal (refer to Disconnecting the battery in the Reference Section of this manual). 2 Firmly apply the handbrake, then jack up the front of the car and support it securely on axie stands (see Jacking and vehicle support). 3 Drain the engine oil as described in Chap-ter 1B. Where applicable, remove the screws and lower the engine undertray away from the vehicle. 4 On turbo models disconnect the turbo-charger oil drain hose from the sump (see illustration). 5 Working around the outside of the sump, progressively loosen and withdraw the sump retaining bolts. 6 Break the joint by striking the sump with the palm of your hand, then lower the sump and withdraw it from underneath the vehicle. Recover and discard the sump gasket. 7 While the sump Is removed, take the opportunity to check the oil pump pick-up/strainer for signs of clogging. If necessary, clean or renew the strainer.
Refitting 8 Thoroughly clean the sump inside and out ensuring that all traces of gasket are removed from the mating surfaces of both the sump and the cylinder block/crankcase.
12.4 Turbocharger-to-sump oil drain hose
9 Ensure that the mating surfaces are clean and dry, then apply a little grease to the surface of the sump. This will retain the gasket in position while refitting the sump. 10 Lay the new sump gasket In position on the sump mating surface, then offer up the sump and refit the retaining bolts. Tighten the bolts evenly and progressively lo the specified torque. 11 On turbo models reconnect the turbo-charger oil drain hose. 12 Lower the vehicle to the ground then refer to Chapter 1B and refill the engine with the specified grade and quantity of oil. 13 Reconnect the battery negative terminal.
13 Oil pump and pick-up tube -removal, inspection and refitting
Removal 1 The oil pump Is mounted on the timing belt end of the cylinder block and is driven by flats on the crankshaft nose. Incorporated In the oil pump body is the crankshaft oil seal. 2 Remove the timing belt as described in Section 4, and the crankshaft sprocket as described in Section 5. 3 Remove the sump as described in Section 12. 4 Unscrew the bolts securing Ihe pick-up tube to the bottom of the oil pump. Also unscrew the bolt securing the tube to the No 2 main bearing cap. Withdraw the tube from the oil pump and crankcase. Recover the gasket (see illustrations).
13.4a Removing the oil pump pick-up tube... 13.4b ... and gasket

2014 Diesel engine in-car repair procedures
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13.5 Note the location of the bracket on the oil pump 13.6 Prising the oil seal from the oil pump housing 13.7 Using an impact drivor to loosen the oil pump cover screws
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13.6a Removing the inner rotor... 13.8b ... and outer rotor 13.9a Depress tho relief valve collar and remove the retaining plate...
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13.9b ... then remove the seat... 13.9c ... spring ... 13.9d ... and valve
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9 ; I 1 13.9e Oil pump housing and components 13.10a Checking the outer rotor-to-casing clearance 13.10b Checking the rotor endplay

Diesel engine in-car repair procedures 2C*11
X
a 13.14 Fitting the new oil seal to the oil pump casing
S Unscrew the bolts securing the oil pump to Ihe front of the cylinder block and withdraw it over the nose of the crankshaft. Note the location of the bracket (see Illustration). Recover the gasket.
Inspection 8 Prise the oil seal from the front of the oil pump using a screwdriver (see Illustration). 7 Unscrew the crosshead screws and lift off the cover. The screws are tight and are best loosened using an impact driver (see illustration). S Lift out the two rotors keeping them identified for position in relation to each other (see illustrations). 9 Depress the relief valve collar, then extract the retaining plate and withdraw the seat, spring and valve (see illustrations). 10 Clean the pump thoroughly, and Inspect the rotors for signs of damage or wear. Using a feeler blade, check the wear between the outer rotor and oil pump casing. Using the feeler blade and a straight-edge, check the endptay of Ihe rotors. If the rotors are worn in excess of the specified amount given in Specifications, the oil pump should be renewed as a complete unit (see Illustrations). 11 Check the condition of the relief valve and seating - If worn excessively the pump must be renewed. 12 If the components are In good condition, reassemble the pump using a reversal of the dismantling procedure. Before fitting the cover the rotors should be oiled and the cavity
13.15 Engine oil dipstick rubber grommet in the oil pump casing between them filled with clean engine oil. Make sure the cover screws are fully tightened. 13 Thoroughly clean the mating surfaces of the oil pump and cylinder block. 14 Dip the new oil seal in engine oil then locate it on the front of the oil pump with the sealing lips facing Inwards. Use a suitable tubular drift (or socket) to drive the seal into the oil pump casing (see illustration). 16 Examine the dipstick tube rubber grommet in the oil pump and renew il If necessary (see illustration).
Refitting 16 Smear a little engine oil on both sides of the new gasket then locate it on the cylinder block (see illustration), 17 To prevent damage to the new oil seal as it is passed over the nose of the crankshaft, wrap some adhesive tape around it and lightly oil it. 18 Carefully locate the oil pump over the crankshaft taking care not to damage the oil seal then Insert the bolts loosely. Remove the adhesive tape (see Illustration). 19 Using a straight-edge, position the oil pump so that the sump mating surface Is level with the surface of the crankcase (see illustration). With the pump correctly positioned, securely tighten the bolts in an even and progressive sequence. 20 Refit the oil pick-up tube together with a new gasket, and securely tighten the mounting bolts. 21 Refit the sump with reference to Section 12.
13.16 Positioning the oil pump gasket on the cylinder block 22 Refit the crankshaft sprocket with reference to Section 5 and the timing belt with reference to Section 4. 23 When starling the engine, let it Idle until the oil pressure warning light goes out.
14 Oil cooler -removal and refitting I I
Removal 1 The oil cooler is located on the right-hand side of the engine compartment. First remove the front bumper as described In Chapter 11. 2 Unbolt the support bar for the radiator and oil cooler. 3 Support the oil cooler then unscrew the upper mounting boll. Lower the cooler to the extent of the hoses. 4 Position a container beneath the cooler then unscrew the Inlet and outlet union nuts and disconnect the hoses from the oil filter. Note the fitted positions of the hoses for correct refitting. Allow the oil to drain into the container. 5 Fully unscrew the union nuts and disconnect the hoses from the oil cooler.
Refitting 6 Refitting is a reversal of removal, but top-up the engine oil level as necessary. Run the engine and check for leaks.
13.18 Locating the oil pump over the end of the crankshaft 13.19 Checking that the oil pump and sump mating surfaces are correctly aligned with a straight-edge

2D*10 Engine removal and overhaul procedures
1 General information
Included In (his Part of Chapter 2 are details of removing the engine/transmission from the car and general overhaul procedures for tho cylinder head, cylinder block/crankca9e and all other engine internal components. The information given ranges from advice concerning preparation for an overhaul and the purchase of replacement parts, to detailed step-by-step procedures covering removal, inspection, renovation and refitting of engine Internal components. After Section 5, all instructions are based on the assumption that the engine has been removed from the car. For Information concerning in-car engine repair, as well as the removal and refitting of those external components necessary for full overhaul, refer to Part A, 8 or C of this Chapter (as applicable) and to Section 5. Ignore any preliminary dismantling operations described in Part A. B or C that are no longer relevant onca the engine has been removed from ihe car.
2 Engine overhaul -general information
1 It Is not always easy to determine when, or if, an engine should be completely overhauled, as a number of lectors must be considered. 2 High mileage Is not necessarily an Indication that an overhaul Is needed, while low mileage does not preclude the need for an overhaul. Frequency of servicing Is probably the most important consideration. An engine which has had regular and frequent oil and filter changes, as well as other required maintenance, should give many thousands of miles of reliable service. Conversely, a neglected engine may require an overhaul very early In its life. 3 Excessive oil consumption Is an Indication that piston rings, vaivo seals and/or valve guides are in need of attention. Make sure that oil leaks are not responsible before deciding that the rings and/or guides are worn Perform a compression test, as described In Parts A or B (petrol engines) or C (diesel engines) of this Chapter, to determine the likely cause of the problem. 4 Check the oil pressure with a gauge fitted In place of the oil pressure switch. If it Is extremely low. the main and big-end bearings, and/or the oil pump, are probably worn out. 5 Loss of power, rough running, knocking or metallic engine noises, excessive valve gear noise, and high fuel consumption may also point to Ihe need for an overhaul, especially if
they are all present at the same time. If a complete service does not remedy the situation, major mechanical work is the only solution. 6 An engine overhaul involves restoring ell Internal parts to the specification of a new engine. During an overhaul, the cylinders are rebored (where applicable), the pistons and the piston rings are renewed. New main and big-end bearings are generally fitted; If necessary, the crankshaft may be reground. to restore the journals. 7 The valves are also servrced as well, since they are usually In less-than-perfect condition at this point. While the engine is being overhauled, other components, such as the starter and alternator, can be overhauled as well. The end result should be an as-new engine that will give many trouble-free miles. Note: Critical cooling system components such as the hoses, thermostat and coolant pump should be renewed when an engine is overhauled. The radiator should be checked carefully, to ensure that it is not clogged or leaking. A/so. it Is a good Idea to renew the ofI pump whenever the engine i$ overhauled.
8 Before beginning the engine overhaul, read through tho entire procedure, to familiarise yourself with the scope and requirements of the job. Overhauling an engine is not difficult If you follow carefully all of the instructions, have the necessary tools and equipment, and pay close attention to all specifications. It can, however, be time-consuming. Plan on the car being off the road for a minimum of two weeks, especially If pans must be taken to an engineering wo'kd for repair or reconditioning.
9 Check on the availability of parts and make sure that any necessary special tools and equipment are obtained in advance. Most work can be done with typical hand lools, although a number of precision measuring tools are required (or Inspecting parts to determine if they must be renewed. Often the engineering works will handle the inspection of parts and offer advice concerning reconditioning and renewal, Note: Always wait unt'l the engine has been completely dismantled, and until all components (especially the cylinder block/crankcase and the crankshaft) have been inspected, before deciding what service and repair operations must be performed by an engineering works. The condition of these components will be the major factor to consider when determining whether to overhaul the original engine, or to buy a reconditioned unit. Do not. fh ere tore, purchase parts or have overhaul work done on other components until they have been thoroughly Inspected. As a general rule, time is the primary cost of an overhaul, so it does not pay to fit worn or sub-standard parts.
10 As a final note, to ensure maximum life and minimum trouble from a reconditioned engine, everything must be assembled wilh care, in a spotlessly-clean environment.
3 Engine and transmission removal -methods
and
precautions
1 If you have decided that the engine must be removed for overhaul or major repair work, several preliminary steps should be taken. 2 Locating a suitable place to work is extremely important. Adequate work space, along with storage space for the car, will be needed. If a workshop or garage Is not available, at the very least, a flat, level, clean work surface Is required. 3 Cleaning the engine compartment and engine/transmission before beginning the removal procedure wilt help keep tools clean and organised. 4 An engine hoist or A-frame will also be necessary. Make sure the equipment is rated In excess of the combined weight of the engine and transmission, Safety Ib of primary Importance, considering the potential hazards involved in lifting the engine/transmission out of the car. 5 If this is Ihe first time you have removed
an
engine, an assistant Bhould Ideally be available. Advice and aid from someone more experienced would also be helpful. There are many instances when one person cannot simultaneously perform all of the operations required when lifting the engine out of Ihe vehicle. 6 Plan the operation ahead of time. Before starting work, arrange for the hire of or obtain all of the tools and equipment you will need. Some of the equipment necessary to perform engine/transmission removal and Installation safely and wilh relative ease On addition to an engine hoist) Is as follows: a heavy duly trolley jack, complete sets of spanners and sockets as described in the reference section of this manual, wooden blocks, and plenty of rags and cleaning solvent for mopping up spitted oil, coolant and fuel. If the hoist must be hired, make sure that you arrange for it In advance, and perform all of the operations possible without it beforehand. This will save you money and time.
7 Plan for the car to be out of use for quite a while. An engineering works will be required to perform some of the work which the do-it-yourselfer cannot accomplish without special equipment. These places often have a busy schedule, so it would be a good idea to consul! them before removing the engine, in order to accurately estimate the amount of time required to rebuild or repair components that may need work, 9 Always be extremely careful when removing and refitting the engine/transmission. Serious injury can result from careless actions. Plan ahead and take your time, and a job of this nature, although major, can be accomplished successfully.

2D*10 Engine removal and overhaul procedures
Engine and transmission -removal, separation, connection and refitting
Note: The engine Is lowered from the engine compartment as a complete unit with the transmission; tho two are then separated for overhaul.
Removal 1 Remove the bonnet and disconnect the washer tubing as described in Chapter 11 (see illustrations). 2 Apply the handbrake, then jack up the front of the vehicle and support on axle stands (see Jacking and vehicle support). Remove both front wheels. In order to remove tne engine/transmission assembly in an upright position from under the vehicle, there must be a minimum clearance of 660 mm between the floor and the front crossmember. Additional height Is necessary if the assembly is to be lowered onto a trolley. 3 Where fitted, unbolt and remove the engine compartment lower cover. 4 Remove the auxiliary drivebelt(s) with reference to Chapter 1A or 1B. 5 Dram the engine oil. transmission oil/fluid and coolant with reference to Chapter 1A or 1B. 6 Remove the battery (see Chapter 5A). 7 On manual transmission models with a cable dutch, disconnect the clutch cable from the transmission (refer to Chapter 6). On manual transmission models with a hydraulic clutch unbolt the clutch slave cylinder from the top of the transmission then fit a cable-tie around it to prevent the piston coming out (see Illustration). Position the cylinder to one side. 8 Unscrew the nut and disconnect the earth lead from the transmission (see illustration). Petrol engines 9 Unbolt and remove the battery tray. 10 Disconnect the wiring from the reversing light switch. 11 On manual transmission models disconnect the reverse Inhibition cable from the transmission then disconnect the gear selector rod from the lever on the transmission. 12 Remove the air cleaner and ducting as descnbed In Chapter 4A or 4B. 13 On automatic transmission models disconnect the kickdown cable and gear selector cable as described in Chapter 7B. Also disconnect the wiring for the electro-magnetic clutch. 14 Unbolt and remove the cover from the bulkhead then disconnect the oxygen sensor wiring. 15 Disconnect the remaining wiring at the bulkhead and release the fuse holders at the mounting. 16 Disconnect the vacuum pipe from the inlet manifold, and also disconnect the wiring connector located next to it.
4.1a Unscrewing the bonnet hinge bolts
17 Unscrewthenutsandseparatetheengine wiring harness lead from the battery positive cable terminal. 18 Disconnect the accelerator cable from the engine as described in Chapter 4A or 4B, 19 Loosen the clip and disconnect the radiator top hose from the elbow on the left-hand end of the cylinder head. Similarly disconnect the bottom hose. On 16-valve models, remove the radiator electric cooling fan as described in Chapter 3. 20 Identify the hoses connected to the throttle housing, then disconnect them. 21 Identify the coolant heater hoses on the bulkhead for position, then loosen the clips and disconnect the hoses. 22 Loosen the clip and disconnect the brake servo vacuum hose from the Inlet manifold. Where applicable, disconnect the remaining emission control system vacuum hoses from the Inlet manifold after Identifying their locations to aid refitting. 23 Disconnect tho fuel supply and return hoses from the throttle housing. 24 Release the connector from the ignition/fuel ECU located on the right-hand side of the engine compartment. 25 Unscrew the nut and detach the earth cable from its location near the ECU. 26 Disconnect the diagnostic connector located near the ECU. 27 On models fitted with power steering, refer to Chapter 10 and unbolt the power steering pump from the front of the engine without disconnecting the hydraulic fluid lines then tie It to one side so that it will not obstruct the removal of the engine. On
4.1b Disconnecting the washer tubing
models with air conditioning, similarly unbolt the air conditioning compressor and position it clear of the engine. Do not disconnect the air conditioning refngerant pipes/hoses. 26 On manual transmission models pull out the retaining plate and disconnect the gear selector cable from the lever on the transmission. 29 Unscrew the nuts retaining the track rod ends on the swivel hubs and use a balljoint separator tool to disconnect them. 30 Release the flexible brake fluid hoses and ABS system sensor wrring from the front suspension struts. 31 On manual transmission models, unscrew the nuts from the outer ends of each driveshaft. To prevent the hubs from turning either have an assistant depress the brake pedal, or temporarily Insert two wheel bolts and use a lever to hold the hub. 32 On automatic transmission models use a suitable drift to drive out Ihe roll pins securing 2D the inner ends of the drlveshafts to tho trans-mission output stubs. Turn the driveshalts as necossary to access the roll pins . 33 Unscrew the two bolts securing the right-hand swivel hub assembly to the front suspension strut, then move the hub assembly outwards. On manual transmission models release the outer end of the driveshaft from the hub assembly - on automatic transmission models slide the inner end of the driveshaft off the final drive output stub. Take care not to strain the flexible brake hose while doing this. Move the driveshaft to one side thon temporanly refit the hub assembly to the strut. On manual transmission models, make
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4.7 Fit a cable tie around the dutch slave cylinder to prevent the piston coming out 4.8 Disconnecting the earth lead from the transmission