Chevrolet 1980 Light Duty Truck Service Manual page 487

V A L V E SYSTEM
L I F T E R
R O C K E R A R M R A T I O
IN T A K E
V A L V E
LASH
E X H A U S T
F A C E A N G L E ( I N T . & E X H .)
S E A T A N G L E ( I N T . & E X H .)
S E A T R U N O U T
I N T A K E
S E A T
W I D T H
E X H A U S T
I N T .
P R O D U C T I O N
S T E M
EXH .
C L E A R A N C E
S E R V IC E
HI LIM IT + .001 INTAKE + .002 EXHAUST
F R E E L E N G T H
P R E S S U R E C L O S E D
V A L V E
LBS. @ IN.
S P R I N G OP EN
( O U T E R )
I N S T A L L E D H E I G H T
+ 1/32"
F R E E L E N G T H
D A M P E R
A P P R O X . # O F C O IL S
LG9
, LS9/LT9 , LF4/LE4
HYDRAULIC
1.70:1
1.50:1
ONE TURN DOWN
FROM ZERO LASH
45
46
.002 MAX.
1/32-1/16
1/16-3/32
.0010.0027
.0010.0027
.0012.0029
2.03
76-84 @ 1.70 INT. @ 1.61 EXH.
194-206 @ 1.25 INT. @ 1.16 EXH.
1-23/32 INT. 1-19/32 EXH.
1.86
TORQUE SPECIFICATIONS
C R A N K C A S E F R O N T C O V E R .............................
F L Y W H E E L HO USING C O V E R ..........................
O I L F IL T E R BYPASS V A L V E .............................
O IL PAN (TO C R A N K C A S E ) ( 1 / 4 - 2 0 ) ...............
O I L PUMP C O V E R ....................................................
ROCKER A R M C O V E R ...........................................
C A M S H A F T S P R O C K E T .........................................
O I L PAN T O C R A N K C A S E ( 5 / 1 6 - 1 8 ) ...............165 LB. IN.
C L U T C H PRESSURE P L A T E ................................
D IS T R IB U T O R C L A M P ...........................................
F L Y W H E E L H O U S I N G ...........................................
M A N I F O L D ( E X H A U S T ) .........................................20 LB. F T . i
M A N I F O L D ( I N L E T ) .................................................
W A T E R O U T L E T .......................................................
W A T E R P U M P .............................................................
C O N N E C T IN G ROD C A P .........................................
C Y L IN D E R H E A D ....................................................
M A IN B E A R IN G C A P .............................................. 80 LB. FT.2
O I L P U M P .....................................................................
F L Y W H E E L ..................................................................
T O R S IO N A L D A M P E R ............................................
T E M P E R A T U R E SE N D IN G U N I T .......................
O I L F I L T E R ................................................................
O I L PAN D R A I N P L U G ...........................................
SPARK P L U G ............................................................ 17-27 LB. FT.
1 Inside bolts on 5.7 (L) 30 LB. FT.
2 Intermediate outer bolts are 70 LB. FT.
80 LB. IN.
80 LB. IN.
80 LB. IN.
80 LB. IN.
80 LB. IN.
4 5 LB. IN.
20 LB. FT.
30 LB. FT.
25 LB. FT.
30 LB. FT.
30 LB. FT.
30 LB. FT.
30 LB. FT.
4 5 LB. FT.
65 LB. FT.
65 LB. FT.
60 LB. FT.
60 LB. FT.
20 LB. FT.
25 LB. FT.
20 LB. FT.