Vacuum And Induction Leaks - SPX LeakMaster 6525 Manual Del Operador

Vacuum and Induction Leaks

1. Seal the system to be tested by selecting the correct
size cap plug (supplied) and sealing the engine's
air intake.
To inspect the entire system, it is best to seal the
engine's intake as close as possible to the air inlet
origin. This is especially important on engines
equipped with mass airflow sensors and related
ducting connecting it to the intake system.
2. Select a vacuum line on the engine that is easily
accessible, and insert the tester's tapered smoke
nozzle into a section of this line that goes to the
engine.
The supply line to the brake booster is a good place
to introduce smoke into the intake manifold. Enter
this line at a point where the check valve will not
interfere (or stop the flow of smoke).
3. With the engine shut OFF, press the remote button
once to turn the tester ON. Let the tester run until
the system is filled – usually 30 seconds to 1
minute.
4. Once smoke is observed exiting a leak, push the
remote button a second time to turn the tester
OFF.
5. Turn the tester ON and OFF in 30 second intervals
to pinpoint the source of the leak.
6. Use the spotlight to identify the origin of the
smoke, or use a UV light (not supplied) to look for
residual traces of the dye that was left behind by
the smoke.
The exiting smoke deposits a residual fluid that is
either bright green or bright yellow in color when
viewed with a UV light.
10
One method to seal the system: Disconnect the rubber
hose at the air cleaner, and plug the end of the hose.
Select a vacuum line that is easily accessible, and insert
tester's tapered smoke nozzle.
Cap Plugs