10.
Remove distributor from intake manifold.
IMPORTANT: DO NOT crank engine over after
distributor has been removed.
11.
Disconnect inlet fuel line at vapor separator tank
(VST) and mechanical fuel pump and remove in-
let fuel line.
b
12.
Disconnect all miscellaneous items that will pre-
vent removal of manifold.
a
IMPORTANT: It may be necessary to pry intake
manifold away from cylinder heads and block in
next step. Use extreme care to prevent damage to
sealing surfaces.
13.
Remove intake manifold bolts, then remove in-
take manifold along with VST, fuel rail and injec-
tors.
72795
b
a - Intake Air Temperature (IAT) Sensor
b - Manifold Absolute Pressure (MAP) Sensor
b
b
5.
Install throttle body and flame arrestor as outlined
b
previously.
b
Intake Manifold
b
b
b
NOTICE
Refer to “Service Precautions,” in “Repair
Procedures,” BEFORE proceeding.
b
REMOVAL
b
1.
Drain engine cooling system. Refer to Section
6A, “Seawater Cooled Models.”
b
b
2.
Remove flame arrestor, throttle body and plenum
as outlined previously.
b
b
3.
4.
Disconnect hoses from thermostat housing.
Disconnect intake manifold to circulating pump
by-pass hose from circulating pump.
b
b
5.
Disconnect all electrical leads necessary for in-
take manifold removal, including fuel injector and
distributor connections. Carefully move wiring
away from intake manifold.
72916
a
a - Intake Manifold
b - Bolt Locations
6.
Disconnect crankcase ventilation hoses from
rocker arm covers.
NOTE: If intake manifold requires replacement,
transfer all remaining parts to new manifold.
7.
8.
Remove distributor cap.
Scribe a line on the distributor housing marking
rotor position. Also, mark position of distributor
housing on intake manifold.
9.
Remove distributor housing hold-down bolt and
clamp.
Index
5C-164 - ELECTRONIC FUEL INJECTION (MULTI-PORT AND THROTTLE BODY)
90-823224--2 796
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1993, 1994, 1995, 1996, 1997 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(4 votes, average: 4.5 out of 5)
Marine readers have rated 1993 1997 Mercury-MerCruiser GM V8 454 CID 7.4L and 502 CID 8.2L Marine Engines Service Manual Number 16 4.5 out of 5.0 based on 4 product reviews. Hugely helpful service manual! Perfect. Thank you!
Manuals are all Important for Technician
This book is invaluable if you do your own repairs. Great book.
Could not find a copy until a search brought me here.
Excellent print.
Thank you