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springer springer is offline
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Join Date: Apr 2002
Location: Rochester, MN
Posts: 55
Timing question... pinging?

Still working on finishing up with a rebuild on my 78 SC. I am setting the timing and am having a bit of difficulty. The engine was running rough, but running steadily and is now a bit better by changing from 40 degrees ATDC to around 15-20 degrees ATDC. The problem I am having is as soon as I twist the distributor closer to TDC it starts making a popping noise which doesn't seem to fit the description of pinging (although I haven't any experience with pinging). It is idling at 950. When set closer to TDC it sounded smoother but was popping consistently every couple seconds.

Any ideas?
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Bob Springer
1978 911 SC (Almost Finished)
http://www.noh2o.com
Old 05-22-2003, 07:38 AM
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