wheel torque FIAT 127 1983 3.G Workshop Manual
[x] Cancel search | Manufacturer: FIAT, Model Year: 1983, Model line: 127, Model: FIAT 127 1983 3.GPages: 34, PDF Size: 6.87 MB
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3.11A Fit the bearing shell ti the main bearing cap s… 3.11B …and then fit caps to the crankcase after oil ing the
shells
3.11C Ensure that each cap is the right way round i n its
own location with the one with four marks at the fl ywheel
end of the crankcase 3.12 Tighten main bearing cap bolts with a torque w rench
3.15 Piston and connecting rod assembly 3.17 One of the oil jet holes in the big-end – the other is on
the other side of the rod
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3.32 Fitting the crankshaft seal and carrier at fly wheel
and… 3.33 …and at the timing cover end
3.34 The timing indicator bracket is located behind the two
top bolts of the seal carrier 3.36 Fit the sump to the crankcase
on fine clearances and these should be checked
during assembly.
22 Fit the outer rotor to the pump body and then
fit the inner rotor (photos).
23 Lay an accurate straight edge across the
faces of the rotors and pump body and measure
the clearance with feeler gauges (photo).
24 Insert a feeler gauge between the outer rotor
and the pump body to measure the clearance
(photo).
25 Similarly insert a feeler gauge between the
inner rotor lobe tip and the outer rotor to
measure the clearance between the two (photo).
26 Compare the clearances with the tolerances
quoted in the Specifications to this Chapter. Any
excessive clearance could result in low oil
pressure, and as the inner and outer rotors are
matched pairs the only solution is a new or
reconditioned pump assembly. 27 Fit the oil pressure relief valve plunger to th
e
pump body followed in turn by the spring,
retainer plate and circlip (photos).
28 Lubricate the rotors with clean engine oil and
refit the pump lower half body and strainer
(photo).
29 With a new gasket, fit the assembled oil
pump to the crankcase block and secure with
the two long bolts (photo). Tighten to the
specified torque load.
30 Fit the oil tube to the crankcase securing it by
its bracket to the centre main bearing cap with
its retaining bolt. Tighten to the specified torque
load (photo).
Craknshaft oil seals and carriers-refitting
31 Clean the flywheel mounting spigot on the
end of the crankshaft and lubricate the
crankshaft seal with clean engine oil. Fit a new
gasket.
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3.78 Setting the belt tensioner
3.84 Checking a valve clearance
3.87 Made-up tool for depressing tappet buckets
when initially inserted; then reinsert it into the
engine. Ideally the contact points should be just
breaking with the rotor opposite the correct
numbered terminal in the cap. If this is not the
case, repeat on a trial and error basis until this
is
achieved (photo).
69 Fit the clamp washer and nut and lightly
tighten temporarily.
70 With a lamp and battery across the contact
breaker points and the clamp nut just loosened,
move the distributor body round its axis until the
light just goes out. Tighten the clamp nut to the
specified torque load (photo).
Toothed drivebelt - removal, refitting and
adjusting
Note: If adjustment is necessary on an old belt
or if the belt is removed for any reason, always
change the belt for a new one, never adjust
using the old belt.
71 The toothed drivebelt should be renewed at
36 000 miles (60 000 km). This can be done with
the engine in the car. 72 Using a spanner on the
crankshaft pulley nut turn the engine over until
the timing mark on the crankshaft pulley is
aligned with the TDC pointer (long one).
73 Remove the drivebelt cover and the
alternator/water pump drivebelt.
74 Check that the camshaft pulley timing hole is
aligned with the cast ridge on the seal housing;
refer to paragraph 59 of this Section. If it isn't,
turn the engine over one revolution to get it lined
up.
75 Before removing the drivebelt it must be
remembered that neither the camshaft nor the
crankshaft must be moved with the belt off, If
this precaution is not observed the pistons and
valves could impact causing serious damage.
76 Release the tension on the drivebelt by
slackening the bolt in the kidney-shaped slot on
the tensioner bracket, loosening the other
(pivot) bolt, pushing the tensioner wheel against
the spring unit and tightening both bolts. Slide
the drivebelt off the pulleys.
77 Fit the new belt. Start at the crankshaft drive
pulley and, taking care not to kink or strain the
belt, ease it into place over the auxiliary shaft
pulley and the camshaft pulley. It might be
necessary to slightly turn the camshaft to get the
belt to mesh. This should always be done in the
direction of least movement to achieve a mesh,
Fit the belt on the tensioner pulley last. If this is
difficult do not lever or force the belt on but
recheck it and try again (photo).