Disassembly Of The Cylinder Head And Valve Plate; Assembly Of The Cylinder Head And Valve Plate - Chevrolet 1991 Light Duty Truck Repair Manual

1B5-6 SD-709 AIR CONDITIONING COMPRESSOR
DISASSEMBLY OF THE
CYLINDER HEAD AND
VALVE PLATE
|» + | Remove or Disconnect (Figures 2 and 15)
1. Six cylinder head cap screws with a 13 mm
wrench.
2. Cylinder head from the valve plate.
• Use a small hammer and the gasket scraper to
tap the outer edge of the head until it is freed
from the plate (figure 16).
• Check the gasket for wear.
3. Valve plate.
• Position the gasket scraper between the outside
edge of the valve plate and the cylinder block and
lightly tap the valve plate loose.
• Inspect the reed valves and discharge retainer.
Replace it worn.
4. Gasket material carefully from the valve plate and
cylinder head with the gasket scraper.
ASSEMBLY OF THE
CYLINDER HEAD AND
VALVE PLATE
IH
Important
• Use new gaskets for reassembly.
□ Install or Connect (Figures 2 and 16)
1. Clean refrigerant oil to the valve plate gasket (17).
2. Gasket to the locating pin holes and oil orifice in
the cylinder block.
16— -Torque Sequence
Figure
3. Valve plate (18).
• Align the valve plate locating pins to the pin
holes in the block.
4. Clean refrigerant oil to the top of the valve plate.
5. Cylinder head (15) and cap screws (11).
• Screws to 32 N m (24 ft. lbs.) using the star
configuration as shown in figure 16.