Yanmar 2GMF - Wiring Diagrams; Early Models with Large Instrument Panel

TRANSMISSION- KBW SERIES
4. Measure the distance (A, Figu re IS) in millimeters
from the mounting flange mating surface on the case to
the top
of each bearing race. Rec ord the measurements.
5. Measure the distance (B.
Figure 16) from the mount-
ing flange mating surface to the bottom of the bearingrace
bore for both the input and output shaft bearings.
6. Subtract the A measurement from the B measurement
for each shaft.
7A. Input shaft- From the result obtained in Step 6. sub-
tract 0.0-0.05 mm. This result equals the thickness of the
shim(s) that must
be installed in the beari ng bore in the
mounting flange.
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8. Output shaft- From the result obtained in Step 6, sub-
tract 0.0-0.1 mm. This result equals the thickness
of the
shim(s) that must be installed in the bearing bore in the
mounting flange.
8. Install the shim(s) in the bearing bore in the mounting
flange, then press the bearing outer race into the mounting
flange on top of the shims. Be sure the race is bottomed.
DRIVE DISC
The drive disc attached to the engine flywheel transmits
power from the engine flywheel to thc transmission input
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shaft. Bolts secure the disc to the flywheel while the trans-
mission input shaft engages the splincd hub on the drive
disc. The drive disc incorporates springs that dampen
driveline shocks between the engine and transmission.
Remova l/Install ati on
I. Remove the engin e from the boat.
2. Remove the transmission.
3. Remove the drive disc (Ffg ure 17, typical).
4. Install the drive disc by reversing the removal proce-
dure. Install the drive disc so the side marked
FLYWH EEL SIDE (Figure 18) is toward the flywheel.
Tighten drive disc retaining bolts to the lorque spec ified in
Table 2.
Inspect ion
Replace the drive disc
if any of the following conditions
exist:
I. Broken spring.
2. Wom or damaged splines in hub.
3. Damaged disc .
.4. Damaged pins.
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