Join Date: Mar 2012
Location: Elora, Ontario Canada
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'65 exhaust smoking.
I have a qwick question, that I am hoping the more experienced members can help me with. I have a '65 with an '68 400cid that has a '66 Tri-power set-up. When I bought the car, the previous owner could not give me any real info on the engine internals, as he didn't have the info. The only thing he was told was it had a mild cam after it was rebuilt in 2004. The motor has less than 5000 miles on it since then.
When I first got it home and started driving it, the idle was a little rough and it would bog when you put your foot in to it. It's a 4 speed manual, so I changed the oil, flushed the block and rad, changed the fuel filter and changed the oil in the Muncie.
I had a local classic car shop adjust the Tri-power, not my area of knowledge yet, and also set the timing. Now it runs like a champ, good idle, easy starts hot or cold and great wot. The problem I am seeing now is: when I am down shifting and letting off the throttle, I can see exhaust smoke in my rear view mirror. It's not white smoke, more like a light gray colour. I only get this when I let off the go pedal and down shifting, and not always from both exhausts, most of the time it seems to be from the drivers side exhaust. The car sat for a long while before I bought it, the previous owner only drove it about 3000 miles in 10 years.
Do I have a problem? or am my just being overly cautious? Thanks for any insight and comments.