The vacuum advance is key to the good running of the engine. If the pipe or diaphragm are leaking, the engine will run poorly.
The vacuum advance is key to the good running of the engine. If the pipe or diaphragm are leaking, the engine will run poorly.
My car was overheating. I tried this test using a vac pump. It wasn’t moving the baseplate inside the distributor when suction applied. Also I manually moved the plate across, covered the end of the tube but it didn’t stay in place, so I am suspecting the vac advance unit. .
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The Skill Shack Team