General Category > Quadrajet Carb Talk and Tips

Pressurizing float bowl passages to detect plug and needle/seat leaks

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Rhett:
What kind of a rig do you guys use to pressurize the bowl for leaks? I havent been able to masker keeping all the jet holes airtight'

My 66 Buick appears to be leaking pretty good, despite a good marine-tex job..

Cliff Ruggles:
No need to seal everything off.  High pressure air thru a long nozzle directly into the jet holes will easily show bottom plug leaks with soap/water on them.

To test N/S, install the needle, fill the bowl with soap/water, holed the needle down firmly, and apply compressed air into the inlet at the fuel filter housing.....Cliff

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