Chevrolet 1977 10 Series, Руководство по ремонту, Страница: 25 / 468

AIR CONDITIONING 1B-19
BUSHING
RING
Fig. 5 6 —In s ta ll in g O-Ring On Dis ch a rg e Cross-over T u b e
Front
Discharge Valve
Plate Assembly
Dowel Pins
SUPPORT B LO C K
J-21352__________ !
Fig. 5 8--I nsta lling Fro n t D is c h a r g e Valve Plate
would contact reed retainers.
8. Generously lubricate new O-ring and angled groove
at lower edge of front head casting with 525 viscosity
refrigerant oil and install new O-ring into groove (Fig. 62).
9. Coat inside m achined surfaces of compressor shell
with 525 viscosity refrigerant oil and position shell on
internal mechanism, resting on O-ring seal.
10. Using flat-side of a small screwdriver, gently
position O-ring in around circumference of internal
mechanism until com pressor shell slides down over internal
mechanism. As shell slides down, line up oil sump with oil
intake tube hole (Fig. 62).
11. Holding Support Block, invert assembly and place
back into Holding Fixture with front end of shaft down.
Remove Support Block.
12. Install new dowel pins in rear cylinder half, if
previously removed.
13. Install new O-ring in oil pick-up tube cavity.
14. Lubricate oil pick-up tube with 525 viscosity
refrigerant oil and install into cavity, rotating compressor
mechanism to align tube with hole in shell baffle (Fig. 63).
15. Install new O-ring and bushing on
rear-end
of
discharge cross-over tube (See Fig. 52).
16. Install rear suction reed over dowel pins,
w ith slot
TO W AR DS sump.
17. Install rear discharge valve plate assembly over
dowel pins,
w ith reed retainers UP .
18. Position inner oil pum p gear over shaft with
previously applied identification
mark UP.
19. Position outer oil pump gear over inner gear with
previously applied identification
m ark UP
and, when
standing facing oil sump, position outer gear so that it
meshes with inner gear at the 9-o’clock position, and result­
ing cavity between gear teeth is then at 3-o’clock position
(Fig. 64).
20. Generously oil rear discharge valve plate assembly
Suction R e e d
L a r g e r D ia . H o le
R e a r D is c h a rg e Front D is c h a rg e
V a lv e P la te V a lv e P la te
Fig. 5 7 —1 nsta lling Fro n t S u c tio n Reed Fig. 5 9 -- F ro n t and Rear D is c h a r g e Valve Plates