Mercury FourStroke 2.5, Руководство по обслуживанию, Страница: 161 / 205

Gear Housing
Page 6A-20 90-8M0065421 NOVEMBER 2012
2. Inspect the driveshaft where the water pump seals ride. If a fingernail can catch in the grooves, the driveshaft should be
replaced.
a - Seal surface
Lower Driveshaft Bearing/Forward Gear Bearing
IMPORTANT: Do not remove the forward gear ball bearing or the lower driveshaft ball bearing from the gear housing unless
replacement is necessary. The removal process may damage the bearings.
IMPORTANT: If the forward gear bearing and the lower driveshaft bearing are removed from the gear housing, inspect the gear
housing for signs of the bearing race spinning in their respective bores. This usually occurs as a result of bearing seizure from
lack of lubricant or from water intrusion. If either bearing spins in their respective bore, the gear housing must be replaced.
1. Inspect the lower driveshaft ball bearing for roughness. If necessary, remove the bearing by driving the bearing downward
with a 3/4 in. socket.
a - Bearing
b - Socket
2. Inspect the forward gear ball bearing for roughness. If necessary, remove the bearing using a bearing puller.
a - Bearing
b - Bearing puller
a
25611
b
a
25612
a
b
a
b
25613