ISUZU KB P190 2007 Workshop Repair Manual
Manufacturer: ISUZU, Model Year: 2007, Model line: KB P190, Model: ISUZU KB P190 2007Pages: 6020, PDF Size: 70.23 MB
Page 2051 of 6020
ENGINE MECHANICAL (C24SE) 6A-37
Hydraulic Valve Lifters, Replace
Removal
1. Remove the spark plug connectors and spark plugs.
2. Remove the camshaft housing cover.
Removal
3. Turn the crankshaft at fastening bolt of toothed belt drive gear in the direction of the engine rotation until the cam
of hydraulic valve lifter being replaced stands vertically.
Removal
4. Apply 5-8840-0457-0 to the camshaft housing, valve spring cap and tension valve spring.
Removal
5. Remove the cam follower from camshaft housing.
Note thrust pieces.
6. Remove hydraulic valve lifter from camshaft housing.
Camshaft Housing, Replace
Removal
Cylinder head-see operation “Cylinder Head. Remove and
Install”.
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Page 2052 of 6020
6A-38 ENGINE MECHANICAL (C24SE)
Inspection
All parts, if necessary replace.
W hen replacing camshaft, always replace all cam followers.
Installation
Insert hydraulic valve lifter (1) in camshaft housing.
Coat sliding surfaces of rocker arm with Mcs, Paste and insert
in camshaft housing.
Adjust
Adjustment of the hydraulic valve liters is not required.
Pretension is provided by the design.
Installation
1. Remove 5-8840-0457-0 and install the camshaft housing cover.
2. Insert the spark plug connectors.
Tighten (Torque)
Guide plate to camshaft housing.
Insert camshaft with MoS
2 paste.
Installation
1. Install the front seal ring in camshaft housing with 5-8840-0451-0.
2. Install the camshaft housing rear cover.
3. Install the cylinder head.
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Page 2053 of 6020
ENGINE MECHANICAL (C24SE) 6A-39
Camshaft Housing, Check for Plane Surface
Clean
Sealing surfaces.
Inspection
Check length and width of sealing surface for deformation and
diagnosis for warpage and use straight edge feeler gauge.
Measure
Height of camshaft housing (sealing surface to sealing
surface).
Dimension I: (74.0 mm)
Cylinder Head, Removal and Installation
Important
Only remove cylinder head with engine cold (room
temperature).
Removal
1. Remove the alternator, power steering and V-belts.
Removal
2. Loosen the fastening bolts from alternator.
3. Loosen the lower alternator fastening bolt by swinging the alternator to the rear.
Removal
4. Remove the front toothed belt cover.
5. Remove the toothed belt from camshaft pulley.
See operation "Timing Check and Adjust".
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Page 2054 of 6020
6A-40 ENGINE MECHANICAL (C24SE)
Removal
6. Remove the camshaft housing cover and camshaft pulley by counter-holding at the hex head of camshaft.
Removal
7. Remove the fastening bolts from camshaft housing.
Removal
8. Remove the exhaust pipe from exhaust manifold.
9. Loosen the cylinder head bolts spirally from the outside inwards (first 1/4, then 1/2 revolution).
Removal
1. Remove the camshaft housing from cylinder head.
2. Remove the cam followers, thrust pieces and hydraulic valve lifters.
Note the allocation.
3. Remove the cylinder head.
Clean
Sealing surfaces, bores and threads of cylinder head bolts.
Inspection
Check cylinder head and cylinder block for plane surfface-see
operations “Cylinder Head, Check for Plane Surface” and
“Cylinder Block, Check for Plane Surface.”
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Page 2055 of 6020
ENGINE MECHANICAL (C24SE) 6A-41
Installation
1. Install the cylinder head gasket.
Mark "OBEN/TOP" on top and turn it towards timing side of engine.
2. Place cylinder head on cylinder block.
1
2
3
Installation
1. Insert the hydraulic valve lifters (3), thrust pieces (2) and
cam followers (1) with MoS2 paste.
Note allocation.
2. Apply a bead of Sealing Compound TB1207C to sealing surface of cylinder head.
3. Install the camshaft housing on cylinder head.
Torque-Angle Method
Cylinder head and camshaft housing with new cylinder head
bolts to cylinder block.
Cylinder head bolts in sequence shown.
Installation
1. Install the rear toothed belt cover to camshaft housing.
2. Install the camshaft pulley to camshaft.
3. Install the camshaft housing cover to housing.
Installation
1. Install the toothed belt on camshaft pulley.
See operation "Timing Adjust".
2. Install the front toothed belt cover.
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Page 2056 of 6020
6A-42 ENGINE MECHANICAL (C24SE)
Installation
1. Install the fastening bolts.
2. Loosen the lower alternator fastening bolt.
3. Install the alternator, power steering and V-belts.
Cylinder Head, Disassemble and Assemble
Removal
1. Remove the hydraulic valve lifters.
Lay aside in installation positions.
2. Remove the spark plugs, exhaust manifold and intake manifold from cylinder head.
Removal
1. Mark valves.
2. Remove the tension valve springs with 5-8840-2594-0 (1).
3. Remove valve keepers, valve spring cap and valve spring.
Removal
1. Remove the valve and valve stem seal.
2. Remove the valve spacer ring (1-exhaust) and valve spring seat (2-intake).
3. Remove valve from cylinder head.
Clean
Sealing surfaces.
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Page 2057 of 6020
ENGINE MECHANICAL (C24SE) 6A-43
Inspection
Sealing surfaces for plane surface, guides, sliding and bearing
points for wear-see operation “Cylinder Head. Overhaul”.
Installation
1. Coat the valves with engine oil and insert in cylinder head.
2. Install the valve spacer ring or valve rotator(exhaust) and valve spring seal(intake).
3. Push the accompanying assembly sleeve onto valve stem and coat with engine oil.
4. Insert a new valve stem seal with 5-8840-2601-0 (1).
5. Drive the valve stem seal carefully in to stop with light hammer blow.
Installation
1. Install the valve springs and valve spring caps.
2. Install the tension valve springs with 5-8840-2594-0 (1), valve keeper.
Important!
Note markings made on valves.
Tighten (Torque)
Exhaust manifold and intake manifold with new gaskets to
cylinder head.
Thermostat housing with new seal ring to cylinder head:
Tighten (Torque)
Spark plugs with spark plug wrench to cylinder head.
Installation
1. Coat hydraulic valves lifters (1) with oil.
2. Insert them in cylinder head.
Note installation position.
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Page 2058 of 6020
6A-44 ENGINE MECHANICAL (C24SE)
Valve, Grind
Valves can be reused once or twice after regrinding-only if
there are no crater-like burns on the valve cone.
Excessive grinding can cause the upper valve head edge to
become too thin.
Important!
Valve stem protection must not exceed dimension “A”-use 5-
8840-2596-0.
Do not regrind valve stem ends.
For all valve reworking note that angle of valve head is 44 °and
the valve seat 45 °-see also “Technical Data”.
Valve, Grind In
Grind-In the valve to improve valve seating.
Grind-In by rhythmically lifting valves and turning uniformly.
Use commercially available grinding tool.
Important!
Use only fine-grained pastes for grinding.
Lubricate valve stem before grinding in.
Clean
After grinding, carefully clean valve and valve soat.
Valve Guide, Ream
Measure
Diameter of valve guide-dial gauge and internal measuring
instrument.
Important!
Valve oversizes are available ex-works.
Oversize identification, on the valve guide and on the valve
stem end with the following specified identificaton
flgures/letters-see also “Technical Data”.
Identification Mark
Size Production Customer Service Reamer
Normal none K
0.075 mm 1 K1
0.150mm 2 K2
Ream valve guide from the upper side of the cylinder head to
the next oversize (use 5-8840-2599-0).
After reaming, cross out identification mark and stamp in new
identification mark.
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Page 2059 of 6020
ENGINE MECHANICAL (C24SE) 6A-45
Valve Seating, Mill
Place cylinder head on block of wood.
Inlet and exhaust, Guide Drift and Valve Seat Cutter 5-8840-
2593-0.
Valve seat-45 °, side face, upper correction-30 °, side face
(arrows on cutter).
Valve seat width:
Inlet-1.0 to 1.5 mm/0.04 to 0.06 in.
Exhaust-1.7 to 2.2 mm/0.072 to 0.088 in.
Inspection
Valve stem projection-use 5-8840-2596-0.
Important!
If dimension “A” is exceeded, use new valves.
Check valve stem projection again. If dimension “A” is
exceeded, replace cylinder head.
Cylinder Head, Overhaul
Cylinder head disassembled.
Valve, Grind
Important!
Ensure that there are no crater-like burns on the valve cone.
Regrinding possible once or twice.
Grinding of valve stem end is not permitted.
Angle at valve head-44 °
Inspection
Check valve stem projection as shown 5-8840-2596-0.
Valve, Grind in
Lubricate valve stem, use fine-graining grinding paste.
Lift up valve from seat rythmically using valve grinding tool (1)
for distribution of grinding paste.
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Page 2060 of 6020
6A-46 ENGINE MECHANICAL (C24SE)
Inspection
Check contact pattern ( I) on valve seat and in cylinder head.
Clean
Valves, valve guides, cylinder head.
Flywheel
Removal
1. Remove transmission and clutch.
2. Remove flywheel while locking with 5-88400-446-0.
Torque - Angle Method
Flywheel to crankshaft - 65 Nm/6.5 kgf ⋅m.+30 ° to 45 °
Important!
Use new bolts.
Do not apply grease to the thread.
Installation
1. Install clutch and transmission.
Component Parts
Flywheel and Ring gear. (Manual Transmission)
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ISUZU KB P190 2007