How do you change the timing on a vacuum advance?
How do you change the timing on a vacuum advance? Remove the rubber hose from the vacuum distributor vacuum advance and plug it with the tip of a pencil. If your engine is 1982 or later and has an EGR valve, remove the rubber hose from it and plug it with a pencil. Use a wrench to loosen the distributor hold-down bolt. How to set the timing on a 318 Mopar engine? Loosen the bolt on the distributor hold-down clamp with a wrench. Loosen it only enough so that you can barely turn the distributor. Start the engine. Being careful...