Mercury 200 OptiMax Jet Drive Service Manual page 312

Piston Ring Expander
5. Lubricate the center main crankshaft roller bearings and races with 2‑Cycle Premium Outboard Oil.
Tube Ref No.
2-cycle Premium
14
Outboard Oil
6. Install the center main crankshaft roller bearing so that the hole is toward the driveshaft end of the crankshaft.
7. Verify that the retaining ring bridges the separating lines of the bearing race.
a
Tube Ref No.
2-cycle Premium
14
Outboard Oil
8. Place the center main crankshaft roller bearings on the upper and lower main bearing journals as shown.
9. Install the center main bearing races as shown.
10. Secure the center main bearing races together with the retaining rings. Make sure the retaining ring bridges the separating
lines of the bearing race.
11. Install the new oil seals into the lower end cap as follows:
a. Apply a thin bead of Loctite 271 Threadlocker to the outer diameter on the two lower end cap oil seals.
90-8M0050731 MAY 2011
Description
Center main crankshaft roller bearings and races
b
Description
Center main crankshaft roller bearings and races
a
b
91‑24697
Where Used
a - Hole is toward driveshaft end
b - Retaining ring
c - Separating line
8825
Where Used
a - Flywheel end
b - Driveshaft end
c - Center main bearing races
c
c
8698
Powerhead
Part No.
92-858021K01
Part No.
92-858021K01
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