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3. Install new valve plate gasket. Using proper hold-down
torque will prevent leaks.
a. Fiber gaskets can be installed dry or lightly oiled. Do
not soak gaskets in oil. If an oil-soaked gasket is
overheated, it will bind to the metal, making the
valve plate and/or the head difficult to remove.
b. Metal gaskets must be installed dry.
4. Place valve plate on cylinder deck.
5. Install cylinder head gasket.
NOTE: The center cylinder heads and unloader side
heads use different gaskets from the plain side head. To
confirm the gasket is correct, place it over the cylinder
head and verify all exposed machined surfaces will be
covered by the gasket.
a. Line up the gasket with the cylinder head and valve
plate.
b. 06E Compressor: Secure the center rib with a cap
screw and washer and torque to 4 to 6 ft-lb (5 to
8 Nm).
6. Replace cylinder head. To prevent high to low side leak
in center of cylinder head gasket, torque 06D cylinder
head cap screws to 30 to 35 ft-lb (40 to 48 Nm), and 06E
cylinder head cap screws to 90 to 100 ft-lb (122 to 136
Nm).
NOTE: Torque bolts in an alternating sequence pattern
(top to bottom, left to right). Do not torque bolts in a cir-
cular pattern.
7. Certain high compression ratio applications develop
high discharge gas temperatures which may cause the
cylinder head and fiber valve plate gaskets to develop a
set. Under these conditions the cap screws may lose
hold-down torque. It is recommended that all gear cap
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