Mercury 150 EFI Service Manual page 507

RIGHT HAND NON-RATCHETING
Pinion Gear Depth/Forward Gear Backlash/Reverse Gear Backlash
DETERMINING PINION GEAR DEPTH
NOTE: Read entire procedure before attempting any change in shim thickness.
IMPORTANT: Forward gear assembly must be installed in gear housing when
checking pinion gear depth or an inaccurate measurement will be obtained.
1. Clean the gear housing bearing carrier shoulder.
2. Install Bearing Preload Tool (91-14311A2) over driveshaft in sequence shown.
NOTE: Bearing Preload Tool (91-44307A1) may also be used. Follow instructions pro-
vided with tool for proper installation.
a -
b -
c -
d -
e -
g -
h -
3. Align adaptor on driveshaft bearing pocket ledge.
4. With tool installed over driveshaft, tighten both set screws securely, making certain
to align sleeve holes to allow set screws to pass thru.
Page 6A-34
h
h
g
g
f f
d
d
c
c
b
b
a
a
Adaptor
Bearing
Washer
Spring
Nut; thread nut all the way onto bolt
f - Bolt
Set Screw
Sleeve; Holes in sleeve must align with set screw
g
g
e
e
90-883728 JULY 2001