Passat L4-1984cc 2.0L DOHC (1991)
- install 19 mm hex nut 19 onto compressor shaft
- insert spanner wrench (Mastercool tool No. 90901 or equivalent) into holes of front clutch plate 18 and hold stationary
CAUTION: Use a beam type torque wrench. Damage may result from use of inaccurate "click" wrenches.
- tighten hex nut 19
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30-34 Nm (22-25 ft lb)
Note: Air gap a is determined by spacer shims 14,15,16. When installing a clutch assembly, try the original shims first. When installing a new clutch on
a new compressor use the 1 mm, 0.5 mm, and the 0.127 mm shims provided in the clutch installation kit. If the air gap does not meet specification, add
or remove shims accordingly.
- check air gap a of clutch with feeler gauge (Mastercool tool No.91146 or equivalent)
-
a = 0.400 mm to 0.800 mm gap (0.016 in. to 0.031 in.)
Note: If air gap a is not consistent around the circumference, lightly pry up on the front face plate at the low spots and lightly tap down on the high spots
with a small hammer.
- lubricate all 0-rings with clean refrigerant oil
- install compressor in vehicle
- remove plugs from A/C lines.
- install A/C lines (arrows) on compressor and tighten as follows:
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suction line: 35 Nm (26 ft lb)
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discharge line : 25 Nm (18 ft lb)