Section 03
ENGINE
Subsection 09
(CRANKSHAFT/BALANCER SHAFT)
03-09-6
VMR2004_013_03-09A.FM
First lift out crankshaft, then balancer shaft.
NOTE:
Take care of spacer discs on crankshaft.
Inspection
Check balancer shaft bearings
nos. 11
and
12
in
front and rear housing for excessive play and
smooth operation. Replace if necessary.
Installation
Install balancer shaft in engine housing, mark
must be aligned with mark on housing.
Coat thrust washer
no. 13
with oil and install in
crankshaft.
Rotate crankshaft before installing so that mark is
aligned with mark on housing.
Fit gasket.
NOTE:
Coat bearing points on shafts. Recenter
crankshaft and balancer shaft if either housing,
crankshaft or balancer shaft were replaced. See
RECENTER CRANKSHAFT.
BALANCER GEAR
Removal
Mount balancer shaft in vise with protective jaws.
Using a suitable puller, remove the balancer gear
no. 5
.
Inspection
Check gears teeth for damage. Change if neces-
sary.
Installation
For installation, reverse the removal procedure.
Pay attention to the following detail.
Heat balancer gear to 80°C (176°F).
CRANKSHAFT
Removal
Use the same removal procedure that balancer
shaft.
Inspection
Crankshaft Bearing Radial Play
Measure bearing journal diameter. The minimum di-
ameter for bearing journal is 47.975 mm (1.888 in).
If the measure exceeds specified tolerance, replace
the crankshaft.
Measure the interior diameter of the crankshaft
bushing.
Subtract bearing journal diameter from inside bush-
ing diameter. The result is the main bearing radial
play. If the measure exceeds specified tolerance,
replace the crankshaft and/or bushing.
Connecting Rod Big End Axial Play
Using a feeler gauge, measure distance between
thrust washer and crankshaft counterweight. If
the distance exceeds specified tolerance, replace
the crankshaft.
Connecting Rod/Piston Pin Clearance
Measure piston pin. Compare to inside diameter
of connecting rod.
CRANKSHAFT BEARING RADIAL PLAY
SERVICE LIMIT
0.10 mm (.004 in)
CONNECTING ROD BIG END
SERVICE LIMIT
Axial play
0.80 mm (.031 in)
CONNECTING ROD SMALL END DIAMETER
SERVICE LIMIT
22.04 mm (.868 in)
PISTON PIN BORE CLEARANCE
SERVICE LIMIT
0.06 mm (.002 in)
Содержание DS 650
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