Chevrolet CAMARO 1979 Service Manual page 229

POWER STEERING 383.9
CONDITION POSSIBLE CAUSE
CORRECTION
Low oll pressure due to steering
pump:
(See punp pressure test.)
N o t e : S t e e r n B s y s t e m e x t e r n a l l e â k a g e
Foâming milky power sreering
fluid, low level and possibie
Loose belt.
Low on level.
Air in rhe oil.
Def€ctive hoses or steering gear.
Fiow control vâlve stuck or inopera,
Loose screw in end of flow conirol
Cracked or broken thrust
Prcssure plare nol llat
nng.
Extreme wear of cam ring.
Scored pressure plâte, rhrust plâte or
Vanes not jnstalled properly.
Vanes sticking in rotor slots.
Air in the fluid, and loss of
fluid due io inrernal pump
leakage causinS ovelf low.
Adjust lension to specification.
Fill reservoir to proper level.
lncâte source of ieak and correcr.
Bleed syslem.
Correct as necessâry.
Remove burrs or dirl or replace.
Tighten.
Replace part.
Replâce pressure plate.
Replâce pâr!s, flush system
Replace pârrs. (If rotor, replace with
rotâting group kit), flush systen
Install properly. Radius edge ro outside.
Free-up by removing burrs, varnish or
Check for leak ând correct. Bleed
system. Extremely cold temperaiures
will cause system aeriation should
the oil level be low. If oil level
is correcr ând pur,np still foans,
remove pump from vehicle ând
sepârate reservoir from housing.
Check welsh plug ând housing for
cracks. If plug is loose or housing
is cracked, replace housing.
F i g . 3 4 3 7 P o w e r S t e e r i n g S y s l e ô , O l a g n o s l s C h a r t E
STEERING GEAR LEAKAGE DIAGRAM (Fis.
383-9)
Pay particular âttertion to ihe exact source ofleakage
as ân improper diâgnosis will resuit in ân ineffective repair.
L Replace adjuster plug "O" ring sۉl.
2. Replâce dust and stub shaft seals. Refer to above or
stub shâft seal ride.
3. Replâce rotary valve âssembly-
4. Seat ball flush with punch and restâke. If seepage
persits, replâce housing.
5. Replace both pitman shaft s€âls. Ref€r to above on
seal ride ârea of pitmân shaft-
6. Replâce end plug "O" ring seal.
7. Tighaen nut to specificâtions. Replâce nut ifleakage
persists.
8. Replâce side cover "O" ring seal.
9. If leakage persists upon tightening the fittiDg nut to
specificâtions replâce brass connector and refâce hose tube
flare. If l€akage is due lo damaged threads (cross threaded),
replace brâss connector. Repab fitting nut or replâce hose
âs required. If housing threads are badly stripp€d, replace
hoùsing.
PUMP LEAKAGE DIAGRAM (Fig. 383-101
10. Tighten hose fitting nut to specificâtions. If leakage
persists, replace dischârge fitting and reface hose tube flare
or replâce hose âs required.
11. Tighten fitting to specifications. If leakâge persjsts,
reptace both 'o" ritg seals.
12. Replace reserYoù "O" ring.
13. Replace drive shaft seal. Refer to above on seal ride
ârea of drive shaft.
14. Replâce reser!oir.
15. Ch€ck oil level. If leakage persists with the level
right and the cap tight, replace the câp.