MVLTlCYL
INDER
ENGINES
1. Disconnect the negative battery cable from the nega-
tive battery terminal.
2. Remove the alternator as described in Chapter Nine.
3. Remove the oil filter.
4. Detach the control cables from the speed control lever
and the stop lever.
119
5. Remove the fuel injection pump as described in Chap-
ter Seven.
6. Remove the seawater pump as described in Chapter
Eight.
7. Remove the crankshaft pulley retaining nut. Using a
suitable puller, remove the crankshaft pulley (Figure 46,
typical). Remove the drive key from the crankshaft.
8. Remove the manual startercover(Fi gure 47, typical).
9. Remove the setscrew in the end
of
the camshaft (A,
Figure
48, typical), then remove the manual starter drive
pin (B).
...--
10. Remove the timing gearcasc (Figure 49). 6
11
. Remove the gaske t and any residue from the gearease L _
and crankcase surfaces.
12.
If
crankshaft or starter seal replacement is necessary,
proceed as follows:
a. Pry the old seal from the gearcase with a large
screwdriver. Work carefully to prevent damage to
the gearcasc seal surface.
b. Clean the seal recess in the cover with solvent and
blow it dry with compressed air.
c. Apply gasket sealer to the periphery
of
the seal.
d. Position a new seal in the cover recess with its open
end facing the inside
of
the gearcasc. Drive the seal
into placewith a suitablysized seal driver or socket.
13. If crankshaft bearing replacement is necessary, pro-
ceed as follows:
a. Refer to Chapter Seven and remove governor shaft
from timing gearcase.
b. Pry the seal from the gearcase with a large screw-
driver. Work carefully to prevent damage to the
gearcasc seal surface.
c. Drive or press out the bearing. Force the bearing
to-
ward the inside of the gcarcase.
d. Clean the seal and bearing recesses in the cover
with solvent and blow them dry with compressed
air.
e. Drive or press in a new bearing until the bearing
scats in the recess in the gearcase.
f. App ly gasket sealer to the periphery
of
the seal.
g. Position a new seal in the cover recess with its open
end facing the inside
of
the gearcase. Drive the seal
into place with a suitably sized seal driveror socket.
h. Refer to Chapter Seven and reinstall the governor
shaft.
14. Reverse the removal procedure to reinstall the timing
gearcase. Refer to Table 4 for the tightening torque
of
the
gearcase retaining screws.
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