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POINT #1:
Drain petcock located on the right inboard side of
the engine heat exchanger.
POINT #2:
Remove the hose connected to the inlet of the
fresh water circulating pump.
Filling system with coolant:
1.
Replace inlet hose to fresh water circulating pump and close pet-
cock on heat exchanger.
2.
Open air bleed petcock at thermostat housing (early models remove
1/8 pipe plug).
3.
Fill system with appropr iate antifreeze mixture through filler
neck on exhaust manifold.
When coolant flows "from bleed petcock
or open plug, close petcock or replace plug and continue filling
until coolant
is 1/4 - 1/2 inch from filler neck.
4.
Start engine and add coolant to maintain level at filler neck.
S.
With engine at operating temperature, fill manifold completely and
install pressure cap.
Add coolant to plastic recovery tank until
level is between MIN and MAX.
Monitor coolant level from recovery'
tank.
Add coolant as needed.
Should an extreme loss of coolant
be found, investigate cause before further engine operation.
Exhaust Manifold Removal
Removal of the exhaust manifold from the eng ine should be done as a
complete assembly in the following manner.
1.
Drain the engine and cooling system of all coolant.
2.
Remove the exhaust connection.
3.
Loosen and remove all hose connections to the manifold.
4.
Loosen
and
remove
the
nuts
and
bolts
attaching
the manifold
assembly to the cylinder head.
S.
Remove the manifold from the cylinder head as a complete unit.
Exhaust Manifold Servicing
1.
Remove the exhaust elbows from the lower surface of the manifold.
Clean and inspect for cracks and defects.
Replace as needed.
2.
Remove exhaust nipples, elbows and plugs from the manifold.
3.
Remove water connectors from the ends of the manifold and the end
plates.
Be sure to note the proper location and arrangement of
each for proper replacement.
70
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