Pontiac FIREBIRD 1972 Service Manual page 618

6-106 1972 PONTIAC SERVICE MANUAL
CAMSHAFT
Material
............................
Hardened Alloy Cast Iron
Bearings
Number
..................................................................
5
Type
......................................
Steel Backed Babbitt
Diameter
-
All
............................
1.8682"
-
1.8692"
VALVE SYSTEM
Valve Lifter
Type
........................................................
Hydraulic
Leak
-
Down Rate
............
20-90 sec. @ 50 lb. load
Plunger Travel (for gauging purposes)
........
,125"
Pushrod
Material
.....................
. .
................
Steel Tubing
Length
............................................................
7.724
Rocker Arm
Material
.........................................
Stamped Steel
Ratio
........................................................
1.5 to 1
Rocker Arm Stud
............................
Pressed in Head
Lifters and Rocker Arms
..........................
Pressure
....................
Timing Gears and Chain
Metered Jet
......................................
Cylinder Walls Metered Jet
OIL P U M P
Type
..........................................................
Spur Gears
Oil Pickup
......................................
Stationary Screen
Pressure
............................
40 to 45 PSI@2000 RPM
Oil Capacity
.......................................................
4 qts.
With Filter
........................................................
5 qts.
FUEL SYSTEM
Fuel Pump Pressure (PSI)
......
!
....................
5.0
-
6.5
Fuel Filter
........................................
Sintered Bronze
CARBURETOR
Type
.....................................
Rochester 2GV (1 1/4)
LUBRICATION SYSTEM
Type of Lubrication
Main Bearings
.........................................
Pressure
Connecting Rods
........................................
Pressure
Piston Pins
.................................................
Splash
Camshaft Bearings
......................
. .
.........
Pressure
COOLING SYSTEM
.........................
Radiator Cap Pressure (PSI) 14
-
17
.......................................
Thermostat Opens At 195"