REPAIR INSTRUCTIONS, PART 1
Page 209
5. Lubricate and assemble an O-ring on the
guide pin located between the openings for
the air compressor gear and the tandem
pump gear.
Make sure the guide pin O-ring is in place before
proceeding. Failure to heed this caution may
result in costly repair.
Cylinder Head Installation
[213 EV]
PROCEDURE
The cylinder head is heavy. Do NOT attempt to
install the cylinder head without the help of an
assistant and the use of a suitable lifting
device. Failure to heed this warning may
result in severe personal injury and
component damage.
All MACK head gaskets are precoated and do not
require any type of additional sealing compound.
274
Figure 274 — Sealant Application Pattern — Head to
Plate
1. Check the condition of the cylinder head
attaching screws and lubricate the screw
heads (underside) and threads with clean
engine oil.
2. Oil all cylinder head screw bosses.
Do NOT oil the threads in the cylinder block.
3. If in place, remove the cylinder liner retainers
from the cylinder block.
4. Place a new cylinder head gasket on the
guide pins in the cylinder block.
There are points embossed in the gasket that
temporarily protect the seals from the cylinder
head. These embossed points are compressed
when the cylinder head bolts are tightened.
The cylinder head gasket should be discarded if
the head is removed. A new gasket should be
used when the cylinder head is installed.
5. Apply a 2 mm (5/64-inch) bead of MACK
approved sealant to the rear face of the
cylinder head according to the pattern
shown.
Attach the cylinder head to the cylinder block and
plate within 20 minutes of sealant application.
To Next Page
Loading...
