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ENGINE 6-30
c". Install the valve locks and release the compres-
sor tool making sure the locks seat properly in
the upper groove of the valve stem.
NOTE:
Grease may be used to hold the locks
in place while releasing the compressor tool.
396 and 427 cu. in. Engines
a. Install new valve stem oil seal (coated with oil)
in position over valve guide.
b. Set the valve spring and damper and valve cap in
place.
c. Compress the spring with Tool J-5892 and install
the valve locks, then release the compressor tool,
making sure the locks seat properly in the groove
of the valve stem.
NOTE:
Grease may be used to hold the locks
in place while releasing the compressor tool.
7. Install spark ,plug, using a new gasket, and torque to
specifications.
-
8. Install and adjust valve mechanism as outlined.
CYLINDER HEAD ASSEMBLY
Removal
1. Remove intake manifold as outlined.
2. Remove exhaust manifolds as outlined.
3. Remove valve mechanism as outlined.
4. Drain cooling system (block).
5. Remove cylinder head bolts, cylinder head and gas-
ket. Place cylinder head on two blocks of wood to
prevent damage.
Installation
CAUTION:
The gasket surfaces on both the
head and the block must be clean of any foreign
ttter and free of nicks or heavy scratches.
Under bolt threads in the block and threads on
Pie cylinder head bolt must be cleaned. (Dirt
will affect bolt torqueT)
1. On engines using a STEEL gasket, coat both sides of
a new gasket with a good sealer, spread the sealer
thin and even. One method of applying the sealer that
will assure the proper- coat is with the use of a paint
roller. Too much sealer may hold the beads of the
gasket away from the head or block.
CAUTION:
Use no sealer on engines using a
composition STEEL ASBESTOS gasket.
2. Place the gasket in position over the dowel pins with
the bead up.
3. Carefully guide cylinder head into place over dowel
pins and gasket.
4. Coat threads of cylinder head bolts with sealing
compound and install finger tight.
5. Tighten cylinder head bolts a little at a time in the
sequence shown on the torque sequence chart until
the specified torque is reached.
6. Install the exhaust manifold as outlined.
7. Install the intake manifold as outlined.
8. Install and adjust the valve mechanism as outlined.
OIL PAN
Removal
Chevrolet and Camaro
1. Disconnect battery positive cable.
2. Disconnect distributor cap from distributor (to pr-e-
vent breaking distributor cap when engine is raised).
3. Drain radiator, then disconnect lower radiator hose
at water pump and remove oil dip stick and tube
(where necessary). '
4. Remove fan blade.
5. Raise vehicle then drain engine oil;
6. Remove through bolts from engine front mounts.
Disconnect and remove starter.
7. On vehicles equipped with automatic transmissions,
remove converter housing underpan.
8. Disconnect steering rod at idler lever then swing
steering linkage 4pwn for oil pan clearance.
9. Rotate crankshaft untii timing mark on torsional
damper is at 6:00 o'clock position.
10. Using a suitable jack, and a block of wood to prevent
damaging oil pan, raise engine "enough to insert 2" x
4" wood blocks under engine mounts (fig. 8V), then
lower engine onto blocks.
NOTE:
If 2" x 4" wood blocks are cut 5-1/2"
long they can be used on all Chevrolet engines.
The 5-1/2" length up for In-line engines and the
4" side up for V8 engines.
11. Remove oil pan and discard gaskets and seals.
NOTE: -On the 396 and 427 cu. in. engine, the
oil pan has three 1/4" x 20 attaching bolts at
,
crankcase front cover. One located at each
corner and one at lower center.
Chevelle
1. Remove engine from vehicle as outlined.
2. Lower engine onto jack stands, one at each front
Tnaount and one at transmission extension.
CAUTION:
Leave engine lift attached to en-
gine. Do not remove all weight of engine off
engine lifET
3. Remove starter.
4. On vehicles equipped with automatic transmission
remove converter housing underpan.
5. Remove oil pan and discard gaskets and seals.
Fig. 8V - Engine Blocked for Pan Removal
CHEVROLET CHASSIS SERVICE MANUAL
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