MANIFOLDS, ELBOWS AND RISERS
SERVICE MANUAL NUMBER 24
Page 7B-4
90-861327--1 OCTOBER 1999
8. Look at the condition of the metal around the exhaust outlet in the casting. Inspect for
damaged metal caused by salt water or exhaust gas corrosion in the manifold, elbow
and riser, if equipped. Replace all damaged parts.
76341
a
a -
Inspect Area Around Exhaust Outlet
9. Check the fire ring gasket fit on the manifold gasket surface. Place a new gasket on the
surface. Thread 4 short 3/8-16 bolts into the bolt holes. Move the gasket fore and aft,
then side to side to make sure the gasket’s fire ring has manifold gasket surface under
it in all 4 positions.
NOTE: If the gasket’s fire ring does not have a solid gasket surface in all 4 positions, the
manifold should be replaced.
76355
a
b
a -
Gasket’s Fire Ring has Manifold Gasket Surface Under It in All 4 Positions
b -
Manifold Gasket Surface
76359
b
a
a -
Gasket’s Fire Ring Does Not have Manifold Gasket Surface Under It in All 4
Positions
b -
Manifold Gasket Surface
Index