Mariner Mercury 105/140 JET, Service Manual

Page: 613 / 797

90-824052R3 JUNE 2002 LOWER UNIT - 6B-57
15. Install centrifugal slinger over driveshaft and
down against pump cover.
b
c
a
51874
d
a - Centrifugal Slinger
b - Water Tube Guide
c - Water Tube Seal
d - Nuts, Bolts and Washers
Gear Lubricant Filling Instructions
1. Remove any gasket material from “Fill” and
“Vent” screws and gear housing.
2. Install new gaskets on “Fill” and ”Vent” screws.
IMPORTANT: Never apply lubricant to gear
housing without first removing “Vent” screw, or
gear housing cannot be filled because of trapped
air. Fill gear housing ONLY when housing is in a
vertical position.
3. Slowly fill housing thru “Fill” hole with Quicksilver
Super Duty Lower Unit Lubricant until lubricant
flows out of “Vent” hole and no air bubbles are
visible.
4. Install “Vent” screw into “Vent” hole.
IMPORTANT: DO NOT lose more than one fluid
ounce (30cc) of gear lubricant while reinstalling
“Fill” screw.
5. Remove grease tube (or hose) from “Fill” hole
and quickly install “Fill” screw into “Fill” hole.
Installing Gear Housing to Driveshaft
Housing
WARNING
Disconnect high tension leads from spark plugs
and remove spark plugs from engine before
installing gear housing onto driveshaft housing.
1. Tilt engine to full up position and engage the tilt
lock lever.
2. Apply a light coat of Quicksilver 2-4-C w/Teflon
Marine Lubricant onto driveshaft splines.
CAUTION
DO NOT allow lubricant on top of driveshaft.
Excess lubricant, that is trapped in clearance
space, will not allow driveshaft to fully engage
with crankshaft. Subsequently, tightening the
gear housing nuts (while excess lubricant is on
top of driveshaft) will load the
driveshaft/crankshaft and damage either or both
the powerhead and gear housing. Top of
driveshaft is to be wiped free of lubricant.
3. Apply a light coat of Quicksilver 2-4-C w/Teflon
Marine Lubricant onto shift shaft splines. (DO
NOT allow lubricant on top of shift shaft.)
4. Apply a thin bead of G.E. Silicone Sealer
(obtained locally) against the top of divider block.
5. Insert trim tab bolt into hole in rear of gear
housing to driveshaft housing machined surface.
6. Shift gear housing into forward gear and place
guide block anchor pin into forward gear position.
51900
a
a - Guide Block Anchor Pin
7. Position gear housing so that the driveshaft is
protruding into driveshaft housing.
NOTE: If, while performing Step 8, the driveshaft
splines will not align with crankshaft splines, place a
propeller onto propeller shaft and turn it
counterclockwise as the gear housing is being
pushed toward driveshaft housing.