S e c . 6D
P age 16
SECTION 6D
C
' t u j i n e
M
a u + U i + u j A .
A ll inform ation in ENGINE MOUNTINGS (SEC. 6D) of S erv ice
Manual S T -331-71, p ages 6D -1 through 6D -3 ap p lies to v e h ic le s cov
er e d by th is supplem ent with the follow in g excep tion s or additions:
ENGINE CU SH IO N BOLT A N D NUT TORQUE
B olt to Alum .
B olt to C asting or Nut
Nut Torque
S ize
Torque (F t.L bs.)
Torque (F t.-L b s.)
(F t.-L b s.)
3 / 8 ” 16-24
12 - 16
25 - 30
15 - 20
7 /1 6 " 14-20
20 - 25
40 - 50
25 - 30
1/2" 13-20
30 - 35
55 - 65
40 - 50
9/1 6 " 12-18
40 - 50
60 - 70
50 - 60
5 /8 " 11-18
50 - 60
130 - 140
70 - 80
3 /4 " 10-16
90 - 110
180 - 200
110 - 130
T-9146
M O U N T IN G BOLTS, BRACKET BOLTS, A N D NUT TORQUES
BOLT OR NUT SIZE
1 /4 "
-
20-28
8-10
5/16" -
18-24
20-25
3 /8"
-
16-24
25-30
7 /16" -
14-20
40-50
1/2"
-
13-16
55-65
9/16" -
12-18
60-70
5/8"
-
11-18
130-140
3 /4 "
-
10-16
180-200
7 /8 "
-
9-14
240-270
1"
8-14
325-380
GM 280-M BOLT
F T .-L B S .
e
BOLT HEAD
IDENTIFICATION
GM 300-M BOLT
F T .-L B S .
10-15
25-30
35-45
70-80
85-105
90-110
170-180
300-320
400-430
700-730
BOLT HEAD
IDENTIFICATION
NUT TORQUE
F T .-L B S .
5-8
8 - 1 2
15-20
25-30
40-50
50-60
70-80
110-130
210-230
320-350
* 40 - 50
** 55 - 65
*** 60 - 70
Torque for alum inum casting.
ENGINE FRONT M O U N T WITH AT475
T RANSM ISSIO N (ALL ENGINES)
F igure 1 show s left sid e front mount u sed on
In -lin e 6-cy lin d er Gas Engine and is typical for V6
and V8 Gas E ngines. R efer to page 2 for figu re 1.
T-9148
to rem ove b rack ets, m ounts, sp a c e r , b o lts, nuts,
and w a sh ers.
NOTE: It w ill be n e c e ssa r y to bend lock tab
b efore rem oving the cushion mount bolt (fig. 1) and
a fter bolt torque. See next page for figure 1.
R eplacem ent
1. L oosen attaching b o lts. R a ise engine enough
2.
R e v e r se the procedure to in sta ll making sure
to torque b olts or nuts a s shown on p reced in g ch arts.
