Vortec 1600 - Page 27

Industrial 1.6L Engine Mechanical 1-5
Fastener Tightening Specifications (Continued)
Specification
Application
Metric
English
Fuel supply and return line to throttle valve guards
15 N@m
11 lb ft
Coolant pump to cylinder block
8 N
@
m
71 lb in
Coolant pipe to cylinder block
20 N@m
15 lb ft
Crankshaft bearing cap to cylinder block 50
N@m
+ 45º + 15º
1)
37 lb ft
Alternator shackle to intake manifold
20 N@m
15 lb ft
Fan housing to radiator
5 N
@
m
44 lb in
Camshaft housing cover to camshaft housing
8 N
@
m
71 lb in
Camshaft sprocket to camshaft
45 N@m
33 lb ft
Oil drain bolt to oil pan
55 N
@
m
41 lb ft
Oil pressure switch to oil pump
30 N@m
22 lb ft
Oil filter to oil pump
15 N
@
m
11 lb ft
Oil pump to cylinder block
10 N@m
89 lb in
Oil pump cover to oil pump
6 N@m
53 lb in
Oil intake pipe to oil pump 8
N@m
1)
71 lb in
Oil intake pipe to cylinder block
8 N@m
71 lb in
Oil baffle plate to oil pan
8 N
@
m
71 lb in
Oil pan to oil pump 10
N@m
1)
89 lb in
Oil pan to cylinder block 10
N@m
1)
89 lb in
Con-rod bearing cap to con-rod 25
N@m
+ 30º
3)
18 lb ft
Flywheel to crankshaft 35
N@m
+ 30º + 15º
1)
26 lb ft
Coolant temperature sensor to intake manifold
20 N
@
m
15 lb ft
Support to alternator and intake manifold
20 N
@
m
15 lb ft
Thermostat housing to cylinder head
10 N@m
89 lb in
Carrier plate (DIS ignition module) to camshaft housing
12 N
@
m
106 lb in
Closure bolt, safety valve to oil pump
50 N
@
m
37 lb ft
Front exhaust pipe to exhaust manifold (hex bolts) 35
N@m
2)
26 lb ft
Front exhaust pipe to exhaust manifold (hex nuts) 45
N@m
3)
33 lb ft
Toothed belt cover – upper part to rear toothed belt cover
4 N@m
35 lb in
Toothed belt cover – lower part to rear toothed belt cover
4 N
@
m
35 lb in
Toothed belt tension roller to oil pump
20 N
@
m
37 lb ft
Spark plug to cylinder head
25 N
@
m
18 lb ft
Cylinder head and camshaft housing to cylinder block
25 N@m + 85º + 85º
2)
18 lb ft
1) Use new bolts.
2) Insert bolts with mounting paste (white).
3) Use new nut(s).