90-824052R3 JUNE 2002 LOWER UNIT - 6B-47
11. Gently rock driveshaft back and forth to deter-
mine forward gear backlash.
ENGINE
MODEL
GEAR
CASE &
RATIO
BACK-
LASH
(INCHES)
BACK-
LASH
(METRIC)
175/200 Production
1.87:1
.018-.027 .46-.69mm
225 Pro
Max/Super
Magnum
Sport
Master
1.87:1
.021-.026 .53-.66mm
135/150 Production
2.00:1
.015-.022 .38-.56mm
12. If backlash is less than the specifications, then a
larger shim should be installed. Conversely, if the
backlash indicated is greater than specifications,
then a smaller shim should be installed.
NOTE: By adding or subtracting 0.002
″
(0.051 mm)
shim, the backlash will change approximately 0.002
″
(0.051 mm).
a
51882
a - Shim
13. If forward gear backlash is within specifications,
then Bearing Preload Tool, Dial Indicator, Back-
lash Indicator Tool/Dial Indicator Holder, PVC
pipe, forward gear assembly, bearing adaptor,
bearing carrier and test propeller shaft can all be
removed from the gear case.
Propeller Shaft/Forward Gear
Bearing Adapter/Bearing Carrier
REASSEMBLY
NOTE: Applying a light coat of 2-4-C w/Teflon Marine
Lubricant (92-90018A12) to the surfaces of both
thrust washers and thrust bearings will aid in keeping
them in place during assembly of bearing carrier into
gear case.
1. Install thrust bearing and thrust washer into
bearing carrier.
Sport Master Gear Cases - Install thrust bearing
(no thrust washer) into bearing carrier with the
smooth surface (back) of the bearing against the
bearing carrier.
CAUTION
Sport Master Gear Cases - Thrust bearing must
be installed with the smooth surface (back)
against the bearing carrier or sever damage will
occur.
a
c
b
51886
a
c
Top illustration: Production Gear Cases.
Bottom illustration: Sport Master gear cases.
a - Thrust Bearing
b - Thrust Washer (Not Used in Sport Master Gear Cases)
c - Bearing Carrier
To Next Page
Loading...
Need help?
General
