Operation CHARM: Car repair manuals for everyone.

Pressure, Vacuum and Temperature Specifications


COMPRESSION PRESSURE
Optimum 131-174 psi (9-12 bar)
Wear Limit 102 psi (7 bar)
Max Difference Between Cylinders 44 psi (3 bar)

COOLING SYSTEM
Antifreeze Protection (50/50) -30° F (-35° C)
Pressure Cap Relief 17-19 psi (1.2-1.35 bar)
Thermostat Opening Temperature
Begins 189° F (87° C)
Fully Open 216° F (102° C)
Cooling Fan Thermoswitch Cut-in Temperature
Stage 1 198-207° F (92-97° C)
Stage 2 210-221° F (99-105° C)
Cooling Fan Thermoswitch Cut-out Temperature
Stage 1 183° F (84° C)
Stage 2 196° F (91° C)


OIL PRESSURE
Minimum (2000 RPM, 176° F) 29 psi (2 bar)
Maximum (Relief pressure) 77-91 psi (5.3-6.3 bar)