Originally Posted by
Farrar
Bill informs me that the engine runs fine, but has a slight vibration and pulls less vacuum than expected.
As far as I can remember, #2613's engine always made a vibration. At idle speeds I could feel it in my seat and the steering wheel. I kept asking people about it, and they kept telling me "It's an odd-fire engine, so it does that." I eventually just gave up looking for the reason and accepted it as a fact of DeLorean ownership. But perhaps a previous owner swapped in some "performance" camshafts and I didn't know about them.
Anyway, Bill was able to get the engine to pull 13 inches of vacuum at idle by advancing base timing up to 18 degrees. We won't know until a test drive is made if there may be any problems with detonation due to the timing advance.