SERVICE MANUAL NUMBER 28
OILDYNE TRIM PUMP
DOWN Pressure Relief Valve Replacement
NOTE: The DOWN pressure relief valve in the kit is color coded GREEN for easy identifica-
tion.
IMPORTANT: A difference exists between the factory installed and the replacement
pressure relief valves. Once the jam nut is loosened on a factory installed relief valve,
the valve is out of adjustment.
IMPORTANT: When installing a replacement pressure relief valve, do NOT loosen or
attempt to remove the hex jam nut. This valve is preset at the factory for proper DOWN
pressure relief.
1.
2.
3.
4.
Loosen jam nut on DOWN pressure relief valve and remove valve.
Remove the pump body components and discard.
Ensure that the threaded hole is free of dirt.
Lubricate the O-ring at the base of the new valve with Power Trim and Steering Fluid
and install valve.
5.
Tighten at the base of the new valve. Torque to 70 lb-in. (7.9 Nm).
a
b
a
e
d
f
c
50396
70872
50396
a - Factory Installed DOWN Pressure Relief Valve
b - Replacement DOWN Pressure Relief Valve (GREEN)
c - Jam Nut
d - Pump Body Components (Spring, Eyelet And Check Ball)
e - Jam Nut
f - O-ring
INDEX
90-863160
MAY 2000
Page 5A-29
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | MerCruiser Sterndrives 90-863160 |
| Model Year | 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(1 votes, average: 3 out of 3)
Marine readers have rated Mercury MerCruiser Bravo Outdrives Sterndrives Marine Engines Service Manual Number 28 3.0 out of 3.0 based on 1 product reviews. I could not find any mention of the seawater pump assembly.
Maybe I have the wrong unit