Re: Engine rattle

Posted by gone1951 On 2008/12/20 15:32:42

Hi There,
Don't know if you have a v-8 or a flathead. Don't think it makes much difference. I agree with the first suggestion to verify the timing. Timing that is too advanced will cause any engine to ping. Even with the timing set to the book spects the unleaded gas can cause pinging. Not to worry. Just retard the timing a degree or two and try it again. A good way to test for preignition is to find a hill to climb. This will require more throttle and cause more pinging. By retarding the timing a little at a time you should be able to eliminate the noise. You do sacrifice some horsepower but it is much easier on the engine. Pinging is not at all good for an engine. You could crack pistons or mess up the cylinder bore.