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Leak Down Tester

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Injector Hat Leakdown Tester Instructions

Leak Down testers are designed for checking leakage:

-Fuel Injection Barrel Valves
-Engine Cylinders
 

Cylinder Leakdown Tester Instructions

Leak Down Tester
 

Engine Cylinder Leakdown: (Click here for short VIDEO)

1) For most accurate results, engine should be up to operating temperature.

2) Remove all spark plugs.

3) Rotate crankshaft until piston being tested is at top dead center of compression stroke.

4) Screw the spark plug adaptor hose into spark plug hole making the sure the o-ring is seated properly.

5) Connect leakdown tester to a good source of compressed air, preferably a filtered and water trapped source.

6) Adjust the regulator on the leakdown tester so the the RIGHT GAUGE indicates 0.

7) Connect the spark plug adaptor hose to the coupler of the leakdown tester.

8) Read the leak down percentage on the RIGHT HAND GAUGE.

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