7B-2 - MANIFOLDS AND ELBOWS 90-823225--1 1096
Cleaning and Inspection
1. Clean gasket material from all surfaces and wash
parts in solvent.
2. Inspect all parts carefully. Machined surfaces
must be clean and free of all marks and deep
scratches, or water and exhaust leaks may re-
sult.
3. Check water passages for foreign material. Pas-
sages must be clean for efficient cooling.
4. If more thorough inspection is desired, pipe plugs
may be removed from exhaust manifold and ex-
haust elbow.
IMPORTANT: If plugs are removed, coat threads
with Quicksilver Perfect Seal before reinstalling.
5. Check for cracks.
6. To test manifold body for leaks, block-off plates,
plugs, or short hoses with plugged ends must be
used. One block-off plate must have a threaded
hole for attaching compressed air hose. Use new
gaskets when installing block-off plate(s). Apply
40 PSI (276 kPa) of air pressure and submerge
manifold in water. Air bubbles will indicate a leak.
Installation
1. Using new gasket, install exhaust manifold to cyl-
inder head. Torque fasteners to 25 lb. ft. (34 N·m).
IMPORTANT: See Section 7C if exhaust risers are
used.
2. Using a new gasket, install exhaust elbow to
exhaust manifold. Torque fasteners to 25 lb. ft.
(34 N·m).
3. Port Manifold:
a. Install remote oil filter and bracket.
b. Install ignition module on exhaust elbow (if so
equipped).
4. Starboard Manifold:
a. Install bolt to secure Quicksilver Water Sepa-
rating Fuel Filter bracket to exhaust manifold.
b. Install shift plate assembly on exhaust elbow
(MCM only).
c. Connect instrument harness plug to engine
harness, if disconnected previously.
d. Connect both shift cables (MCM only).
5. Install exhaust elbows and cooling hoses.
6. On Closed Cooled Models: Refill closed cool-
ing system to operating level with properly mixed
coolant. Refer to SECTION 6B.
7. Reconnect battery cables to battery. Tighten se-
curely.
8. Start engine and check for fuel, exhaust and
water leaks.
72695
c
d
e
a
b
f
Stainless Steel Elbow With Restrictor Gasket
(Cast Iron Elbow Similar)
a - Exhaust Elbow
b - Bolts (4)
c - Gasket - Seawater Cooled (Aligned As Shown)
d - Exhaust Manifold
e - Plug
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