Chevrolet 1977 10 Series, Руководство по ремонту, Страница: 147 / 468

REAR AXLE DIFFERENTIAL
4B-75
DIFFERENTIAL DIAGNOSIS
Complaint Possible Cause Correction
Does n o t lo c k : A . L ittle or no sp ring
p re lo a d on th e la tc h in g
b ra c k e t.
A .
Replace g o ve rn o r assem bly
and la tc h in g b ra c k e t.
B. F ly w e ig h ts on g o ve rn o r
assem bly s tu c k closed.
B.
Replace g o v e rn o r assem bly and
la tc h in g b ra c k e t.
C.
B ro ke n D rive te e th on
g o v e rn o r a n d /o r cam
gear assem bly.
C. Replace cam p la te , g o v e rn o r
assem bly and la tc h in g b ra c k e t.
D. B ro ke n c lu tc h plates
in cam gear assem bly.
D. Replace c lu tc h plates and
wave spring.
Locks in tu rn s : A. G o v e rn o r assem bly
tig h t in case.
A . Free u p g o ve rn o r assem bly.
B. B ro ke n o r w eak
g o ve rn o r fly w e ig h t
spring.
B. Replace g o v e rn o r assem bly
and la tc h in g b ra c k e t.
C. F ly w e ig h t in g o ve rn o r
assem bly s tu c k open.
C. Replace g o v e rn o r assem bly
and la tc h in g b ra c k e t.
D. B ro ke n cam p la te a n d /o r
g o ve rn o r d rive te e th .
D. Replace cam p la te , g o v e rn o r
assem bly and la tc h in g b ra c k e t.
N o isy:
N O T E : In a d d itio n
c lu tc h noise
to n o rm a l axle noise (see se ctio n on s ta n da rd d iffe re n tia l) , th e lo c k in g d iffe re n tia l e x h ib its som e
u p o n engagem ent and disengagem ent.
A . B ro ke n c lu tc h plates. A .
R eplace c lu tc h plates and
wave spring.
B. B ro ke n re a c tio n b lo c k . B. R eplace re a c tio n b lo c k .* C heck
c lo se ly f o r o th e r damage.
Replace e n tire u n it if
h o u sin g, side gear, o r p in io n
gears are damaged.
C. B ro ke n d iffe re n tia l
gears.
C.
Replace e n tire u n it.
* R e a ctio n b lo c ks m ust be replaced w ith b lo c k s o f id e n tic a l thickn e ss.
Fig. 4B-3H~Diagnosis Chart