CONNECTING RODS
CAMSHAFT
52.
Check the camshaft for wear on the cams and
bearing journals. Also check the wear on the
bearings. The bearings are pressed into their re-
cesses and must be line milled after pressing in.
The maximum allowable wear on journals or
bearings is 0.05 mm (0.002").
49.
Check the connecting rods for straightness and
twist.
OIL PUMP
53.
Remove the cover, retaining the old gasket. Re-
50.
Check the connecting rod bushings, using the
gudgeon pins as gauges. There should be no
noticeable play. If it is necessary to replace the
bushings a suitable drift should be used for
pressing in and out. Ensure that the oil hole in
bushings coincides with that in the connecting
rod.
move the gearwheels, the spring and the piston.
Clean all parts. Check the reducing valve spring,
see “Technical Data”. Replace any worn or dam-
aged parts.
Ream the new bushings. The correct fit is
achieved when an oiled gudgeon pin slides slow-
ly through the bushing under its own weight.
CRANKSHAFT
54A.
Check the axial play of the gearwheels. NOTE!
The old gasket should be included in the meas-
urement. If necessary, the number of gaskets
may be increased or reduced so as to obtain a
clearance of 0.03-0.15 mm (0.001"-0.006"). The
thickness of a new gasket is 0.10 mm (0.004").
Also inspect the cover, repair or replace as ne-
cessary if badly worn. Coat the gasket(s) with
sealant and refit the parts. Pour a little oil into
the pump before mounting onto the engine.
51.
Measure the big end journals and the main bear-
ing journals. The out-of-round should not exceed
mm (0.0024") and the taper should not ex-
0.06
ceed 0.05 mm (0.002"). If these values are ex-
ceeded, the crankshaft should be ground to a
suitable undersize (see “Technical Data”).
B.
Check the gear backlash, which should be
0.15-0.35
mm (0.006-0.014"), using a feeler
gauge. Worn gears must be replaced.
20
| Categories | Volvo Penta Manuals |
|---|---|
| Tags | Volvo Penta MD11C, Volvo Penta MD11D, Volvo Penta MD17C, Volvo Penta MD17D |
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| Copyright | Attribution Non-commercial |
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