The vacuum advance is key to the good running of the engine. If the pipe or diaphragm are leaking, the engine will run poorly.
Related Videos
-
9:17More often than not, an electrical issue on a classic car is as simple as adjusting a fuse or correcting a faulty wire. For those times when it’s just a bit more complicated, Ed teaches you how to read a circuit diagram on your classic car to discover where the faulty component might be in your car’s system.
Watch Now >> -
10:02Now that you know how to join two wires and you have a basic understanding of circuit diagrams, it’s time to try your hand at a simple project. Learn how to use essential tools and your new knowledge of electrical wiring to install auxiliary lights to the front of your classic car.
Watch Now >> -
24:27In the final step of the engine decoking process, you’ll learn to reassemble the head, replace a new gasket, and remount the cleaned and decoked components onto the engine block. Ed walks you step by step through the finishing methods needed to put the cylinder head back together and make sure everything is properly affixed and operational.
Watch Now >> -
16:51Next in the process, we’ll turn on the MGB to have a look, a listen and a feel at how the engine is running. Danny and Clive teach you how to complete a warm engine check, which requires you to pay particular attention to the sounds, the smells and the vibrations emanating from the car. Learn to diagnose any abnormalities in timing and efficiency while the car is still in the garage.
Watch Now >>
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. .
Hi Ian, and thanks for contacting Skill Shack with Practical Classics.
Skill Shack works in partnership with Practical Classics Magazine, which can provide in-depth answers to your question through their ‘Ask Our Experts’ pages. If you’d like to direct your query to practicalclassicshelpline@bauermedia.co.uk our team of experts will be able to help.
Kind Regards,
The Skill Shack Team