[TR] TR4/Webers - that banging noise

Randall tr3driver at ca.rr.com
Sun Aug 2 15:59:35 MDT 2009


> Well, it doesn't sound good. I discovered that it is cylinder #3 that is
> banging. Removing that spark plug wire removes the sound and reveals an
> engine no noisier than usual.

Alas, that usually indicates a rod knock, either big end or small end.

I'd probably drop the pan first, on the off chance that it can be dealt with
from underneath.  Might be just a bolt that didn't get torqued or whatever.
But most likely you're going to have to pull the head as well.

Randall


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