2.
3.
Inspect manifold for cracks or scratches. Ma-
chined surfaces must be clean and free of all
marks and deep scratches or leaks may result.
2. Using Quicksilver Bellows Adhesive, glue neo-
prene gaskets to engine block between cylinder
heads.
Check intake passages for varnish buildup and
other foreign material. Clean as necessary.
3. Apply a small amount of RTV Sealer on neoprene
gasket ends.
4.
Set intake manifold gaskets in place, aligning bolt
holes.
Installation
a
IMPORTANT: When installing intake manifold
gaskets, in next step, be sure to do the following:
b
c
•
Be sure to install gasket with marked side up.
Both gaskets are identical.
•
All MerCruiser V-8 GM engines that have “au-
tomatic” carburetor chokes must use an in-
take gasket that has an opening for the ex-
haust crossover port in the intake manifold.
Without this opening the “automatic” carbu-
retor choke will not operate properly. The
choke will remain ON longer causing rough
engine operation and wasted fuel.
b
a
72514
1.
Apply Quicksilver Perfect Seal to intake manifold
a - Neoprene Gaskets
b - RTV Sealer
c - Gaskets
gaskets
sides).
around
coolant
passages
(both
5.
Carefully install manifold assembly. On all en-
gines except 7.4L / 454 / 502 Magnum Multi-Port
Injection, torque bolts to 35 lb. ft. (48 N·m) in se-
quence as shown.
c
b
14 16
a
4
15
1
5
b
c
6
13
7
12
72514
11
a - Exhaust Crossover Port Opening in Gasket
b - Intake Valve Port
3
2
c - Coolant Passages
10
8
!
WARNING
9
72515
Be sure to read and follow package label direc-
tions when using bellows adhesive.
Intake Manifold Torque Sequence
Index
90-823224--2
796
454 CID (7.4L) / 502 CID (8.2L) - 3A-23
| 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.
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