Mercury 15 EFI FourStroke, Service Manual

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3. If the pinion bearing must be replaced, use the pinion bearing tool to remove the pinion bearing.
65060
Pinion bearing
Pinion Bearing Installation Tool Assembly 8M0038865
a. With the sleeve installed on the end of the tool, push the tool into the driveshaft bore until the flange of the tool guide
rests against the surface of the gear housing.
a - Pinion bearing tool guide
b - Sleeve
b. Tap on the head of the tool until the head seats against the tool flange. The pinion bearing will drop into the gear
housing cavity. Discard the pinion bearing. The bearing cannot be reused after removal. Remove the tool from the
driveshaft bore.
a - Head of tool
b - Tool flange
IMPORTANT: If the forward gear ball bearing, upper driveshaft bearing, or pinion bearing appear to be spinning in their
respective bores, the gear housing must be replaced.
Driveshaft Inspection
1. Inspect the splines at both ends of the driveshaft for a worn or twisted condition. Replace the driveshaft if either condition
exists.
65063
a
b
a
b
65064
Gear Housing (2.15:1)
90-8M0125265 eng NOVEMBER 2017 © 2018 Mercury Marine Page 6A-25