The Ford Barn - View Single Post - 8BA potential leak- Bubble test

JWL · 06-21-2019, 09:35 PM

Did you remove the waterpump drive belts during the bubble test? With the belts removed, fill the radiator to the top. Start the engine and jam the throttle wide open for a few seconds. If combustion pressure is leaking into the coolant it will become obvious.

06-21-2019, 09:35 PM	#8
JWL Member Emeritus Join Date: May 2010 Location: Fitzgerald, Georgia Posts: 2,204	Re: 8BA potential leak- Bubble test Did you remove the waterpump drive belts during the bubble test? With the belts removed, fill the radiator to the top. Start the engine and jam the throttle wide open for a few seconds. If combustion pressure is leaking into the coolant it will become obvious.