Possible Cause - Chevrolet 1980 Light Duty Truck Repair Manual

Chevrolet 1980 passenger cars and light duty trucks unit repair manual
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4B-50
REAR AXLE DIFFERENTIAL
Complaint
D o e s n o t lo c k :
L o c k s in tu rn s :
N o is y :
N O T E :
In a d d it io n
to n o r m a l a x le n o is e (see s e c tio n o n s ta n d a rd d i f f e r e n t ia l) ,
c lu tc h
n o is e u p o n e n g a g e m e n t a n d d is e n g a g e m e n t.
' R e a c tio n
b lo c k s m u s t be r e p la c e d w it h
O VE R H A U L M A N U A L
D IF F E R E N T IA L DIAGNOSIS

Possible Cause

A .
L i t t le o r n o s p rin g
p r e lo a d o n th e la tc h in g
b r a c k e t.
B.
F ly w e ig h t s on g o v e r n o r
a s s e m b ly s tu c k c lo s e d .
C .
B ro k e n
D riv e te e th o n
g o v e rn o r a n d / o r c a m
gear a s s e m b ly .
D .
B ro k e n c lu tc h
p la te s
in c a m gear a s s e m b ly .
A .
G o v e r n o r a s s e m b ly
t ig h t in case.
B.
B ro k e n o r w e a k
g o v e r n o r f ly w e ig h t
s p rin g .
C .
F ly w e ig h t in g o v e r n o r
a s s e m b ly s tu c k o p e n .
D .
B ro k e n c a m
p la te a n d /o r
g o v e r n o r d riv e te e t h .
A .
B ro k e n c lu tc h
p la te s .
B.
B ro k e n
r e a c tio n
b lo c k .
C .
B ro k e n d i f f e r e n t ia l
gears.
b lo c k s o f id e n tic a l th ic k n e s s .
Fig. 4B-3H ~D iagnosis Chart
Correction
A .
R e p la c e g o v e r n o r a s s e m b ly
a n d la tc h in g b r a c k e t.
B.
R e p la c e g o v e r n o r a s s e m b ly a n d
la tc h in g b r a c k e t .
C .
R e p la c e c a m
p la t e , g o v e r n o r
a s s e m b ly a n d la tc h in g b r a c k e t .
D .
R e p la c e c lu t c h
p la te s a n d
w a v e s p rin g .
A .
F re e u p g o v e r n o r a s s e m b ly .
B.
R e p la c e g o v e r n o r a s s e m b ly
a n d la tc h in g b r a c k e t.
C .
R e p la c e g o v e r n o r a s s e m b ly
a n d la tc h in g b r a c k e t .
D .
R e p la c e c a m
p la t e , g o v e r n o r
a s s e m b ly a n d la t c h in g b r a c k e t.
t h e lo c k in g d i f f e r e n t ia l e x h ib it s s o m e
A .
R e p la c e c lu t c h
p la te s a n d
w a v e s p rin g .
B.
R e p la c e r e a c t io n
b l o c k . * C h e c k
c lo s e ly f o r o t h e r d a m a g e .
R e p la c e e n t ir e u n it if
h o u s in g , s id e g e a r, o r p in io n
gears are d a m a g e d .
C .
R e p la c e e n t ir e u n it .

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