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