INTERPRETATION OF RESULTS
A.
Gauge Pressure Stable:
If the gauge does not drop over a period of several minutes there
are no serious leaks in the system. Examine all joints for seepage or
slight leakage.
B.
Gauge Pressure Drops Slowly:
A small leak is likely present. Check radiator, water pump, hoses,
gaskets, and heater. After repairing leaks, re-test system.
C.
Gauge Pressure Drops Quickly:
A large leak is present. Look for any external sign of coolant. If no
coolant is visible, an internal leak is indicated. Check heater core,
engine oil and transmission fluid.
Detection of compression or combustion leakage into the cooling system:
A.
With
system.
B.
Start engine and let idle. As engine warms up, watch pressure
gauge. If gauge pressure vibrates or rises rapidly, turn off engine
immediately.
SYSTEM SPECIFICATIONS.
cates a defective head gasket. Carefully remove tester after system cools.
Once testing is complete, release pressure in the cooling system by turning
the tester head LEVER clockwise until it moves up the ramp cams (Fig 1). With
pressure released, rotate tester HE D counter-clockwise to remove.
COOLING SYSTEM
COOLING SYSTEM COOL
DO NOT ALLOW THE PRESSURE TO EXCEED THE
COOL, remove cap. Install pump onto
A vibrating or fast pressure rise indi-
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