Mercury/Mariner 25 MARATHON Service Manual page 244

2. Install lower driveshaft bearing cup into driveshaft bore of gear housing as follows:
· Assemble bearing cup as shown.
· Draw bearing cup up to shoulder of gearcase housing using cup puller
f
e
d
a
b
c
a-Bearing Cup
b-Bearing Cup Puller (91-44385)
c-Flat Washers 2 (12-34961)
3. Install new driveshaft oil seals into driveshaft bore of gear housing as follows:
· Apply Loctite " 271"to outer diameter of driveshaft oil seals.
· With lip of seal facing down, press the first oil seal into driveshaft bore until seal
· With lip of seal facing up, and using Installation tool 91-858775, press the second
· Wipe off excess Loctite.
b
a
Loctite " 271"(92-809819)
7
a-Upper Driveshaft Bearing
b-Mandrel
c-Seals (2)
d-Oil Seal with Lip of Seal Facing Up
e-Oil Seal with Lip of Seal Facing Down
f-Installation Tool (91-858775)
90-826883R2 JUNE 1998
(91-44385) as shown
c
11-24156
f
is just below the top of driveshaft bore.
oil seal into driveshaft bore until seal is 3/16"(4.7 mm) below top of driveshaft
bore.
7
c
d
7
91-44385
12-34961
91-29310
d-Threaded Rod 0.625x18-16 in. long (91-31229)
e-Plate (91-29310)
f-Hex Nut 0.625x18 (2) (11-24156)
3/16² (4.7 mm)
e
GEAR HOUSING
91-44385
f
91-858775
Page 6A-27