Opel 1900 1973, Service Manual

Page: 320 / 625

ENGINE MECHANICAL AND MOUNTS 29
Cooling System Type Liquid Cooling With Circulating Pump
Filler Cap Type Pressure 13.2-15.2 PSI
Water Temperature Control Thermostat and Bypass
Thermostat Open At 189 F.
Cooling System Capacity . . . . . . . . . . . .
6 Qts.
Fan Drive Water Pump Shaft
ENGINE DIMENSIONS AND FITS
Cylinder, Crankcase, Pistons, Cylinder Head, Valves
Bore Limits for Standard Size Pistons:
3.659-3.660 In.
Size 2
3.661-3.663 In.
Size 3
3.664-3.668 In.
Bore Limits for Oversize Pistons, In.
.
3.679-3.681 In.
Max. Permissible Cylinder Bore Out-of-Roundness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
In.
Max. Permissible Cylinder Bore Taper
In.
Piston Clearance, Nominal (on skirt bottom)
No. 1 Compression Ring Side Clearance in
Piston Groove In.
No. 2 Compression Ring Side Clearance in
Piston Groove In.
Oil Control Ring Side Clearance in Piston
Groove I n .
Piston Ring Gap:
No. 1 Compression Ring In.
No. 2 Compression Ring In.
Oil Control Ring In.
Piston Pin in Connecting Rod Press Fit
I n t a k e
E x h a u s t
Valve Spring Pressure
Valve Closed
1.57 In. at 93 Lbs.
1.36 In. at 97
L b s .
V a l v e O p e n . . . . . . . . . . . . . . .
1.18 In. at 182 Lbs. In. at 180
L b s .
Valve Stem Diameters
Standard S i z e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
In.
In.
,003 In. Oversize
In.
In.
In.
In.
In.
.O 1 18 In. Oversize
In.
In.
Valve Length, Nominal
4.843 In.
4.92 In.
Valve Head Diameter
1.574 In.
1.34 In.
Valve Guide Bores in Cylinder Head (Intake and Exhaust)
Standard Size In.
in I n .
,006 in
In.
in Oversize In.
Valve Stem Clearance
Intake . In.
Exhaust In.
Max. Permissible Head to Stem
Intake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
In.
Exhaust In.