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Mercury 90 Service Manual

Mercury 90
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5B-28 - MID-SECTION 90-830234R3 DECEMBER 1997
4. Remove reservoir from manifold.
a
b
53960
a - Reservoir
b - Oil Pump
Manifold Removal
1. Remove screws and manifold from cylinder.
a
b
c
53962
a - Trim Cylinder
b - Manifold
c - Screw (2)
2. Remove check valve components from manifold.
IMPORTANT: Sleeve (f) is chamfered on I.D. on
end opposite drilled cross hole. Install spool (g)
(with O-ring installed) from chamfered end of
sleeve to avoid possibility of damaging O-ring on
spool.
a
b
b
c
d
d
d
e
f
g
h
53961
a - Manifold and Pump
b - Spring (2)
c - Check Valve
d - O-ring (4)
e - Seat
f - Sleeve
g - Spool
h - Chamfered End
3. Remove O-rings from cylinder.
a
51008
a - O-rings

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Mercury 90 Specifications

General IconGeneral
BrandMercury
Model90
CategoryOutboard Motor
LanguageEnglish

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