Pontiac Grand Prix Service Manual page 275

6-36
1969 PONTIAC SERVICE MANUAL
Valve Springs.
..........................................................
1-Bbl. Q'Jet
Pressure @ Length
PSI PSI
Outer..
.....................................................
164-175 @ 1.233' 116-128
@
1.103'
94-10 @ 1.663' 62-68
@
1.633'
Inner..
.....................................................
-
58-64
@
1.173'
-
29-35
@
1.613'
Valves
Material-Intake 4 Bbl..
......................
GM 8440 Steel and Aluminized Face and Chrome-Plated Stem
Material-Intake 1 Bbl..
.....................
.GM 8440 Steel with Aluminized Face and Chrome-Plated Stem
-Exhaust.
.............................
.21-2N Steel with Aluminized Face and Chrome-Plated Stem
Diameter of Head-Intake
.......................................................................
.1.92'
-Exhaust.
.....................................................................
1 .6OU
Overall Length-Intake-1 Bbl..
.................................................................
.4.8lU
-Q'Jet
...................................................................
.4.9(r
-Exhaust-1 Bbl..
................................................................
.4.8(r
-Q'Jet
..................................................................
.4.89'
Diameter of Stem.
................................................................................
-34'
Stem to Guide Clearance-Intake.
..........................................................
.0016'-.0033'
-Exhaust.
........................................................
.0021X-.0038'
Valve Seat Angle-Intake.
........................................................................
.46O
-Exhaust.
.......................................................................
.46O
Valve Face Angle-Intake.
........................................................................
-45'
-Exhaust.
.......................................................................
-45'
Lubrication System
Type of Lubrication-Main Bearings..
.........................................................
.Pressure
-Connecting Rods.
........................................................
.Pressure
-Piston Pins..
..............................................................
.Splash
-Camshaft Bearings.
......................................................
.Pressure
-Lash Adjusters and Cam Followers.
.........................................
Pressure
-Timing Gears and Belt.
.....................................................
.None
-Cylinder Walls.
.......................................................
.Metered Jet
Oil Pump-Type.
......................................................
.Spur Gear-Externally Mounted
-Oil Pickup.
...............................................................
.Stationary Screen
-Pressure.
............................................................
.26-36 PSI @ 2800 rpm
Oil Capacity.
...............................................................................
.4% Qts.
-With Filter..
.............................................................................
. 5 Qts.
Fuel System
.....................................................................
Fuel Pump Pressure (PSI). -4.5-5.5
Fuel Filter.
...........................................................
.Pleated Paper in Carburetor Inlet
Carburetor-Type-1 Bbl..
..........................................................
.Rochester Monojet
-4 Bbl..
........................................................
.Rochester Quadrajet
-Barrel Size-1 Bbl..
.................................................................
.1.75'
-Q'Jet
.............................................
.1.38 Primery, 2.25 Sacondary
Cooling System
Radiator Cap Pressure (PSI).
....................................................................
.14-17
Thermostat Opens At..
..........................................................................
190°F
Water Pump Rate (GPM).
.........................................................................
.16