CHEVROLET LIGHT DUTY TRUCK 1977 Service Manual
Page 851 of 861
,0B -5,) $D$,'$( )5$#%
<
.
'
<
.
.
'
<
>
?
,
*
Page 852 of 861
Page 853 of 861
5! &3 ((3
A
Page 854 of 861
0
0
*
%9&
3
+
3
%
+
3
!/05
3\(
+
%
'9%
%
%
+
+3
\)
3
3"
!'01\(
+
L
"
$
'9
L
L
%
3
\)
R9
#
!+
+
+4
3
''
'@
@
@
'
49
P
+L
*'%%\(
#+
L
42
P
$!
9%
'9+
%\(Q
%\(Q
L
3
=9
::2::"
\)#
<"
Z"
I-&&8
*C*
=
\(
\(\)=9
<"
T
Page 855 of 861
7
4
9
EG=
>
"E=
G0
$<
#0
"9
"
"GE"
">0E
E""
EE0=
EG99
G"EGE=
GG
G9
GGG
G==
=
=
==>9=
>>0=
>$
>90
00
0
0$P0
0#
$
"
0
G=
>0$
999
"" >E=
" <E
"GGG=>> $#"
E90$$<
G9##""""
=""
"""G ""
>9"""0
"">
0"""
"EEE"
$E
EEEEE
<9E
EE
EEEE
EE
#EEEEEEG
"99
GGGGG
GG
GG
9=
0$
#
G0"
"E
E
"G
G=>
>
0
E
0$$<
##
E9
G9""
""
"
="
"""
>""
""
">
0"
EEE
$
EEEE
EE
$
<EEE
EE
E<
#E
GGG#
"99GG
GGG
G"99
Page 856 of 861
/,#$
3 2
:
9
/,#$
E/ E/ E/ E/E/ E/
E/ E/
E/ E/
B: B32B939:B2 9B2
B::
B3:3B92B292
:BB
B33B3 33B 32B2
3B
3B39B:9 B9
33B9
B: B2: B9B:32 2B32
2B92
2B23 2B:3 2:B:
3
29B392B9B2
B92B9 :B3
B: B2: :B:3B:2
2:2B2
:B9 :B:B33 B9 3B23 2B B:
B32 9B99
2
9B2: 93B
9B:9: 9B3 9:B99B2
B3
BB23
2B
: :B: 9B BB B 2B: :B33
B9B22
B2
:
3B: 2B3: B9 B29 B3B 33B
3B3 3B 3B2
9 39B B:B
B9B:B
9B2 2
2B:3 2B3
9
22B92
2:B2
29B:2B: B39
3B9 2B :B B3 B
:B:3B2
:2B:B::B
:9B9 B
3B3B9
B23
E
3
2
9
/
/
/
/
/
/
/
/
3
2
:B
:
9B
3
3
33
3
33
33
3
2
3
3:
33
3
3
2
2
:
9
2
2
2
:
22
22
2
2
2
29
2
9
2
2
:
:
:
:
:3
:
:
:2:
:
:
:
+
3
:
9
0
B
3
3
2
2
2
2B3
:B
:9
3
B2
9
B
3
3
2
2
:
2
3
3
3
3
3B
3
3
:
3B
3
3
323
32
32B
3
3
3
:
3:9B
3
3
3
39B
3
3
9
:
B
B
3
:
22
29B
:
B
#9
9
B
2
2
23B
#
Page 857 of 861
B B
9=
0
99"
"
"E
E
"EG
G=
==
>
"
E9>
>000
$
G<<<
#"
G9
=""
""
""
=
>""
""
7"
""
"
0"""
"
"
$9""""
"
EE
$9
<E
EE
EE
EE
#9E
EE
EEE
E
"E
EE
E
E
E
E
*&
9=$
P*&
=G
=
"=>0
$<
E9##
""""
G9"""
"""""
G9
="
"EEE=
>9E
EEEEEE
0EEG0
$9GG
GGGGG$
'&
GGGG==
<9
#=
====
=#9
"=====
9=0$
<
999
""
""B
SEE
GG
E9>>>
0
E
G0$<
=<
###"
""
>9"""0
0""""
"
$"
""\\
""
<9*
"""
<
#E
EEEE
E
"99EEE
"
Page 858 of 861
#<
&32:9P#
E
EL
EEEL
EE
332
::
99
3
3
2
3
332
333
323
:33
333
3
0
\(
9
2
2223
232
22
22:2
229
2
E
3
:
E
#
#
#
#
#
3
2:
9
3
3
2
3
22
29B
:
3
9
9
2
99
3
C
:
9
9
3
3
3
3
3
33
3
3
333
3
3
!
3
:
L
L
L
L
L
L
L
+
:B
3
29
:
:9
9
9
3
3
3
3
333
32
2
3
39
9
2
:23
23
22
22
29
2
9
B
99
:
::3
:2:
::9
:9
::3
Page 859 of 861
5 * % - ) - ) % %23) 46 )H2-64 *3C4)
E=
0$<
*
*
" $E>E"
""
""EE
"
E9E
GG= E
G
= =#=>>>
G9
=>
000
00
0$
>
$$$<<
09<
<###"09
$9
"""
""""
<9
"""E"""<9
#"""""
"9"
"""""99
%2
9
"
E
G=
>
<#
3
3
3
3
"
E
>0 $$
#"
"
"
""
EE
E
E
E
GG
GGG
G
==
=
==
>>
=
>
>
>0
00=
>
0
$$
$$
$
09
<
<
<<#
$9
#
#
##
"""$9
<
"
"
"""
""<
#
""
""
"""
"9
"
"
"""
"""
3
3
9
"
E
G
>
<3
" =$>"
E=
>
>
"9
$
<
<
#
""
"
""G
"
E9
"
""
"
"
"E
E
\)
E
E
E
EE
E
EEE
G9
=
E
G
G
GG
=
>9
G
G
G
G=
0
=
=
==0
$9
>
>
>
>>
>>
$9
<
>
>
0
0
00<
#
0
0
0
0$
$$$#
"9
$
$
$$
$
$$"9
Page 860 of 861
I
(- D*,) . % $ D ,/ - # $ * ( ,D (- D*,) . %
$ D ,/ - # $*(,h
. B B
. B B
> : 2 B B : 3 B B BB : 9 9 > : 2
B : 3 B B B : 9
> 3 B B 3 B B B B > 3
B 3 B B B
B 2
> : 2 <
B
B
B
B
B
3
B
3
B
BB
BB
2
B
B
B2
B
B2
B
B
B
B
B2
B
B
B:
BB
B:
B
YB
3
B
B
B
B
3
B9
B
B
B
3
B
B
BBYBB3
3
B
B3
3
B
3
B
B
BB
3
B
B
B
B
B
B
B
B
B3