Exhaust Manifold Removal And Installation - Ford LSG 875 Service Manual

1-34 BASIC ENGINE
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REMOVAL AND INSTALLATION (Continued)
Installation
6. install intake manifold and carburetor as-
1 .
2 .
3 .
4 .
5 .
Clean cylinder head, intake manifold, valve
rocker arm cover, and cylinder block gasket
surfaces. If cylinder head was removed for
cylinder head gasket replacement, check
flatness of cylinder head and block gasket
surfaces. If exhaust manifold was removed,
coat cylinder head and manifold port areas
with film of graphite grease and install mani-
fold and gasket to cylinder head.
Position new cylinder head gaskets on block
over dowels. Do not apply sealer to head
gasket surfaces. Place cylinder heads on
block and install attaching bolts (longer bolts
in lower row of bolt holes). Tighten all cylin-
der head attaching bolts in sequence in
three steps to specifications.
When this
procedure is used, it is not necessary to
re-tighten bolts after extended operation.
Clean and inspect push rods, one at a time.
Clean the oil passage in the push rods with
a suitable solvent, and blow out with co,m-
pressed air.
Install push rods in original positions. Apply
Ford Polyethylene grease DOAZ-19584-A or
equivalent to valve stem tips and push rod
ends.
Lubricate and install the rocker arms follow-
ing the procedure under Valve Rocker Arm
Installation.
Be sure lower ends of push
rods remain seated in valve lifters.
sembly, following procedure under Intake
Manifold Installation.
7. Perform valve clearance adjustment, as de-
tailed under Valve Clearance Adjustment,
only if necessary.
8. Apply oil-resistant sealer to one side of new
valve rocker arm cover gaskets. Lay ce-
mented side of gaskets in place in covers.
Install covers.
9. Install bolt attaching alternator bracket to
right cylinder head. Adjust alternator drive
belt tension to specifications and tighten al-
ternator attaching bolts.
10. Fill cooling system as necessary.
11. Start engine and check for leaks.
12. Check and adjust carburetor idle speed and
mixture as required.
EXHAUST MANIFOLD
Removal
1. Remove attaching bolts and washers, and
remove exhaust manifold(s), lifting
bracket(s) and spark plug wire heat shields.
Inspect the cylinder head joining flanges of the
exhaust manifold(s) for evidence of exhaust gas
leaks.
Inspect the manifold(s) for cracks, damaged
gasket surfaces, or other defects that would
make them unfit for further service.
Installation
1. Clean mating surfaces of exhaust mani-
fold(s) and cylinder head(s). Apply light film
of graphite grease to exhaust manifold(s).
2. Position spark plug wire heat shields and
exhaust manifold(s) on cylinder heads. In-
stall attaching bolts and washers, starting at
fourth bolt hole from front of each manifold.
Position lifting bracket under bolts at third
exhaust port from front of engine. Tighten
bolts to specifications, working from center
of manifold to both ends.
3. Place new gasket(s) on inlet pipe(s). Posi-
tion inlet pipe(s) to manifold(s). Install at-
taching nuts and tighten to specifications.
4. Start engine and check for exhaust leaks.