Opel 1900 1973 Service Manual page 589

1973 OPEL SERVICE MANUAL
LINE UP LOCA
PINS AND H O
Figure SB-158 Installing Rear Head
head.
9. Reassemble shaft seal onto front of shaft and
plate assembly. Do not reassemble clutch
drive plate at this time.
'Testing Compressor
Leak
1. After the shaft seal pressure test has been per-
formed, change the test circuit to the configuration
shown in Figure 9B-160.
2. With hose attached only to high pressure side of
Leak Test Fixture J-9625, open high pressure valve
to charge high pressure side of compressor. As soon
as high pressure gage stabilizes reading, close valve.
If high pressure gage drops back immedaitely when
valve is closed, an internal leak is indicated. Correct
leak as necessary.
If an internal leak is indicated, the leak may exist
about the head sealing surface or Teflon seal, dis-
reed discs.
3. Remove drain screw from shell and add No. 525
as specified.
viscosity oil
4. R~eassemble pulley assembly, and coil and hous-
ing assembly onto hub of front head.
5. Complete reassembly by installing clutch drive
plate onto hub of front head. See Figure 9B-164
disassembled view of compressor.