Chrysler DODGE D150 1993 Service Manual page 1464

• HEATING AND AIR CONDITIONING 24 - 27
(6) Coat seal retainer with clean refrigerant oil.
Use seal seat tool to install (Fig. 21). Press lightly
against seal.
J8924-36
Fig. 21 Seal Retainer
(7) Install snap ring. Beveled edge lies outward
from compressor. Flat side lies toward compressor. It
may be necessary to lightly tap the snap ring to se­
curely position it in its groove.
(8) Replace clutch spacer shims.
(9) Tap new felt ring into place (Fig. 22).
J8924-37
Fig. 22 New Felt Ring
(10) Align front plate keyway to compressor shaft
key.
(11) Using shaft protector, tap front plate to shaft
until it has bottomed to the clutch shims (Fig. 12).
Listen for a distinct change of sound during the tap­
ping process.
(12) Replace shaft hex nut. Tighten the hex nut to
37 N-m (27 ft. lbs.) torque.
(13) Check air gap with feeler gauge. The specifi­
cation is 0.406-0.787 mm (0.016-0.031 inch). If air
gap is not consistent around the circumference,
lightly pry up at the minimum variations. Lightly
tap down at points of maximum variation.
The air gap is determined by the spacer shims.
When installing the original or a new clutch assem­
bly, try the original shims first. When installing a
new clutch onto a compressor t h a t previously did not
have a clutch, use 0.040, 0.020, and 0.005 shims from
the clutch accessory sack.
(14) If the air gap does not meet the specification
given, add or subtract shims as required.
CYLINDER HEAD / VALVE PLATE
REMOVAL
(1) Remove cylinder head bolts.
(2) Using a small hammer and a gasket scraper
separate the cylinder head from the valve plate (Fig.
23).
J8924-39
Fig. 23 Compressor Cylinder Head