Bell Housing To Drive Shaft Housing Check Valves - Mercury BRAVO Service Manual

SERVICE PROCEDURES REQUIRING MAJOR DISASSEMBLY
3. Replace hose and hose clamps.
4. Tighten hose clamps securely.
IMPORTANT: Hose and clamps are installed on bell housing hose barb and through
bulkhead fitting, before through bulkhead fitting is reinstalled.

BELL HOUSING TO DRIVE SHAFT HOUSING CHECK VALVES

Unless damaged during disassembly, or by heat, these check valves should last the life of
the drive unit.
The bell housing check valve is replaced as an assembly.
Removal
1. The bell housing check valve can be removed with pliers and discarded, or it can be
2. The drive shaft housing check valve can be removed by retracting the seal cup with a
Page 4B-36
a - Hose - 10 in. (254 mm)
b - Hose Clamps
c - Through Bulkhead Fitting
removed by placing hose clamp snugly over area "f," and pulling out, with pliers on hose
clamp and reinstalled if working properly.
pliers or hook and discarded. Remove the check valve and spring and discard.
a - Seal Cup
b - Check Ball
c - Spring
d - Check Valve Assembly
e - O-rings (2)
f - Area to Secure Hose Clamp for Retraction
a
c
f
c
b
a
d
SERVICE MANUAL NUMBER 28
b
e
90-863160 MAY 2000
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