Transom Assembly; Engine Coupler; Driveshaft Extension Models - Mercury 2.8 Diesel Operation & Maintenance Manual

Section 4 - Maintenance

Transom Assembly

Lubricate the gimbal bearing by applying approximately 8‑10 pumps of grease from a typical hand‑operated grease gun.
Tube Ref No.
Extreme Grease

Engine Coupler

IMPORTANT: These engines are equipped with a sealed engine coupler. The sealed coupler and the shaft splines can be
lubricated without removing the sterndrive.
Lubricate the engine coupler splines through the grease fitting on the coupler by applying approximately 8–10 pumps of
Extreme Grease from a typical hand‑operated grease gun.
NOTE: If the boat is operated at idle for prolonged periods of time, the coupler should be lubricated on Bravo models every 50
hours.
Tube Ref No.
Extreme Grease

Driveshaft Extension Models

1. Lubricate the transom end grease fitting and engine end grease fitting by applying approximately 10–12 pumps of grease
from a typical hand‑operated grease gun.
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Description
Description
a - Gimbal bearing grease insert
a
Where Used
Gimbal bearing grease insert
a - Grease fitting
a b - Coupler splines
b
23500
Where Used
Engine coupler and shaft splines
8M0071842
8M0071842
90-8M0113987 DECEMBER 2015
eng
Part No.
Part No.