Pontiac TRANS AM 1977 Service Manual page 749

ENGINE COOLING
68-23
SPECIFICATIONS
TORQUE
Torque in lb. ft. unless otherwise specified.
APPLICATION TORQUE
Bolt-Fan to Water Pump
..............................................
20
Bolt Water Pump (1/4")
..................................................
12
Bolt Water Pump (5/16")
...............................................
20
..................................................
Bolt Water Pump (3/8") 30
COOLING SYSTEM
Type
.........................................................
Pressure with vent
Operating Pressure
................................................
14- 17 PSI
Pump Type.
.........................................................
Centrifugal
Pump and Fan Drive Except 140 Eng.
.....................
V-Belt
Pump and Fan Drive 140 Eng.Ground Side of Timing Belt
Pump Bearings
.....................................
Sealed Ball Bearings
Radiator
.....................................................
Tube and Center
Thermostat
.................
Pellet type opening CQ 195°F (91°C.)
NOTE: Some altitude engines require 180°F. (82°C.)