Chevrolet 30 Series 1967 Service Manual page 310

ENGINE 6-30
Fig. 5V —Compressing V a lv e Spring
NOTE:
A light coat of oil on the seal will help
prevent twisting.
b. Install the valve locks and release the com­
pressor 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.
366 cu. in. Engines
a. Install new valve stem oil seal (coated with oil)
in position over valve guide.
b. Set the rotator (exhaust valve), 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.
Install spark plug, using a new gasket, and torque
to specifications.
Install and adjust valve mechanism as outlined.
Cylinder Head Assemblies
Removal
1. Remove intake manifold as outlined.
2. Remove exhaust manifolds as outlined.
3. Remove valve mechanism as outlined.
4. Drain cylinder block of coolant.
5. Remove cylinder head bolts, cylinder head and gas­
ket. Place cylinder head on two blocks of wood to
prevent damage.
Installation
CAUTION: The gaskets surfaces on both the
head and the block must be clean of any foreign
matter and free of nicks or heavy scratches.
Cylinder bolt threads in the block and threads on
the cylinder head bolts must be clean. (Dirt
will affect bolt torque.)
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 gasket
away from the head or block.
CAUTION: Use no sealer on engines using a
composition STEEL ASBESTOS gasket.
Place the gasket in position over the dowel pins with
the bead up.
3. Carefully guide the cylinder head into place over the
dowel pins and gasket. *
4. Coat threads of cylinder head bolts with sealing
compound and install bolts finger tight.
5. Tighten each cylinder head bolt a little at a time in
the sequence shown in the torque sequence chart until
the specified torque is reached.
Install exhaust manifolds as outlined.
Install intake manifold as outlined.
Install and adjust valve mechanism as outlined.
Oil Pan
Removal
1. Drain engine oil.
2. Remove oil dip stick and tube.
3. On vehicles so equipped remove exhaust crossover
pipe.
4. On vehicles equipped with automatic transmisssion
remove converter housing under pan.
5. Remove oil pan and discard gaskets and seals.
NOTE:
The oil pan on the 366 cu. in. engine
has three 1/4" x 20 attaching bolts at crankcase
front cover. One located at each corner and
one at lower center.
Installation
1. Thoroughly clean all gasket and seal surfaces on oil
pan, cylinder block, crankcase front cover and rear
main bearing cap.
2. Install new oil pan side gaskets on cylinder block
using gasket sealer as a retainer. Install new oil
pan rear seal in rear main bearing cap groove, with
ends butting side gaskets. Install new oil pan front
seal in groove in crankcase front cover with ends
butting side gaskets (fig.
3. Install oil pan and torque bolts to specifications.
NOTE:
On 366 cu. in. engines, start bolts
into crankcase front cover before tightening any
other bolts.
4. Install converter housing under pan (if removed).
5. Install exhaust crossover pipe (if removed).
. Install oil dipstick tube and dipstick.
6
7. F ill with oil, start engine and check for leaks.
V).
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CHEVROLET TRUCK SERVICE MANUAL