SELVA MARINE Blue Whale 250 EFI Service Manual page 232

LOWR
4. Install the new taper roller bearing 7 and
bearing outer race 8 into the propeller
shaft housing using a press.
NOTE:
After installing the taper roller bearing and
bearing outer race, check that the propeller
shaft rotates smoothly.
Ring nut wrench 9: 90890-06578
5. Install the propeller shaft housing assem-
bly in the reverse direction into the lower
case.
6. Install the claw washer 0 and ring nut
A, and then tighten the ring nut to the
specified torque.
6-41
Lower unit
Ring nut wrench 9: 90890-06578
Ring nut A:
108 N·m (10.8 kgf·m, 79.7 ft·lb)
7. Install the original shim(s) B, forward
gear C, and dog clutch D using a press.
NOTE:
• Be sure to select the forward gear shim(s) if
replacing the propeller shaft housing, taper
roller bearing, or lower case.
• To select shims, see "Shimming (counter
rotation model)."
• Install the dog clutch D with the "F" mark e
facing toward the forward gear.
• After installing the forward gear, check that
the propeller shaft and forward gear rotate
smoothly.
Ring nut wrench 9: 90890-06578
6P23H11