Exhaust Smoke
Thread Starter
Cruising
Joined: Jan 2006
Posts: 12
Likes: 0
Exhaust Smoke
I recently had the auto tranny on my 71 vette changed to a T5 manual. I have noticed that since this change was made there has been a noticeable amount of whitish smoke from the exhaust when shifting through the gears. Is this normal? My oil level is okay as is my oil pressure.
Race Director
Joined: Sep 2002
Posts: 10,362
Likes: 5
From: San Diego - Deep Within The State of CONFUSION!
How many miles on the engine and how are the compression readings? With an automatic trans you don't let off the gas when you shift. You do so with a manual trans unless you're speedshifting.
If the engine is smoking when you let off the gas to shift, the most common thing to blame is the valve seals. If that's the case, it makes sense that you never noticed the smoke before the transmission change (although you would have seen it upon deceleration before the swap).
If the engine is smoking when you let off the gas to shift, the most common thing to blame is the valve seals. If that's the case, it makes sense that you never noticed the smoke before the transmission change (although you would have seen it upon deceleration before the swap).
Melting Slicks
Joined: Oct 2005
Posts: 2,056
Likes: 8
From: Redruth Cornwall
White smoke? isnt that indicative of water or coolant getting into the system? If so could be a big problem. If it were Blue smoke, then I would agree with it being oil possibly getting past the seals. Do you have any white residue in the oil from the filler cap or dipstick?
Thread Starter
Cruising
Joined: Jan 2006
Posts: 12
Likes: 0
I do see smoke when letting off the gas to shift--no other times but this. The engine is new with less than 5000 miles on it. I see no coolant issues or oil issues. If the engine is burning too rich, could this be a cause?
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