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Be certain that the vehicle is in "Park" or "Neutral", and hands are clear
of engine compartment, as engine rotation may occur while using this tool.
Cerciórese que la transmisión del vehículo esté en "Park" o en "Neutro" y de tener las
manos fuera del compartimiento del motor porque el cigüeñal puede rotar al usar la herramienta.
Assurez-vous que le véhicule est sur « Park » ou sur « Neutre », que vos mains sont éloignées
du compartiment moteur, car une rotation pourrait survenir lors de l'utilisation de l'outil.
Wear safety goggles.
Use gafas de seguridad.
Portez des lunettes de protection.
Avoid excess fuel spillage.
Do not smoke or cause sparks or flame in the vicinity.
Check all connections for leaks before and after testing.
Evite las pérdidas excesivas de combustible.
No fume o produzca chispas o fuego en las cercanías.
Revise que no haya pérdidas en todas las conexiones antes de realizar la prueba.
Évitez le déversement excessif de carburant.
Ne fumez pas ou ne créez pas d'étincelles ou de flammes à proximité.
Vérifiez tous les raccords pour les fuites avant et après le test.
Do not touch engine components that are hot.
No toque los componentes calientes del motor.
Ne touchez jamais aux composants chaud du moteur.
INSTRUCTIONS FOR CYLINDER LEAKAGE TESTER
– Pin-points problem shown by compression test or cylinder balance test.
– Uses shop air to determine leakage source and the amount of leakage measured in percentage of loss.
– The pressure gauge monitors inlet pressure to ensure accurate testing.
– Leak down gauge measures the percentage of compression leakage.
HOW IT WORKS
1. Regulated shop air is supplied to each cylinder and the gauge measures the rate of leakage.
2. Remove oil dipstick and radiator cap and disconnect one end of PCV hose. If vehicle has a carburetor, remove
air cleaner and open throttle all the way. If vehicle is fuel injected, remove air cleaner or throttle body hose to
listen at the throttle body.
3. To locate the source, listen at these places:
A. Oil dipstick tube for bad rings
B. Radiator filler for cylinder wall cracks or head gasket
C. Adjacent spark plug hole for cylinder wall cracks or head gasket
D. Tail pipe for exhaust valve leakage
E. Carburetor air horn for intake valve leakage
F. Fuel injection throttle body for intake valve leakage
HOW TO USE TESTER
IMPORTANT – Be sure that the regulator knob is turned FULLY counter-clockwise
before connecting to shop air. Over-pressurized gauges are not guaranteed.
1. Run engine until it reaches operating temperature.
2. Remove car parts specified in (2) above, and disable the ignition system.
3. Remove all of the spark plugs and position the cylinder being tested to approximate top dead center on
the compression stroke so both valves are closed. Rotate engine only in proper engine rotational direction.
To position the cylinder correctly:
A. Rotor points to cylinder coming up on compression.
B. Piston is at approximately top dead center when reluctor teeth align with stationary core.
C. A whistle that whistles on the compression stroke and stops at approximately top dead center can
be quickly coupled to the cylinder hose of your tester.
4. Turn the regulator knob fully counter-clockwise. Then connect shop air 100–150 PSI to the regulator without
the cylinder test hose connected. Turn regulator clockwise until the percentage gauge reads zero at the end
of the yellow set band.
5. Screw the cylinder test hose into the spark plug hole and then connect the cylinder test hose to the gauge
WARNINGS / ATENCIÓN / AVERTISSEMENT:
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