DETROIT DIESEL 53
1.2 Cylinder Head
3. Make a final visual check of all of the cylinder head
Install Cylinder Mood
gaskets and seals to ensure that they are in place just
1. Install new cylinder head compression gaskets and
before the cylinder head is lowered onto the cylinder
seals as outlined below:
block. This is a very important check. Compression
gaskets and seals which are jarred out of their proper
position will lead to leaks and "blow-by" with resultant
a. Place a new compression gasket on each cylinder
poor engine performance and damage to the engine.
liner.
4. Wipe the bottom of the cylinder head clean; then,
b. Place new seal rings in the counterbores of the
lower the head on the block.
water and oil holes in the cylinder block.
5. Lubricate the threads and the underside of each
c y l i n d e r head bolt with a small quantity of
c. Install a new oil seal in the milled groove in the
International Compound No. 2, or equivalent. Then,
cylinder block near the outer edge of the area
install the bolts. On the In-line engines equipped with
covered by the cylinder head.
both six and twelve point cylinder head bolts, the
twelve point bolts must be installed on the camshaft
NOTE: Used water seals, oil seals and compres-
side of the head to eliminate possible interference
sion gaskets should never be used.
between the governor control link and the cylinder
head bolt.
2. To install the cylinder head on the engine without
NOTE: Cylinder head bolts are especially
disturbing the gaskets and seals, use guide stud set
designed for this purpose and must not be
J 9665. Install the guide studs in the end cylinder
replaced by ordinary bolts.
block bolt holes (Fig. 2).
Fig. 6 - Sequence for Tightening Cylinder Head Bolts
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