Exhaust smoke
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Joined: Nov 2007
Posts: 57
Likes: 1
Exhaust smoke
Hey guys..I'm hoping someone can help me with this problem. I have a 70 L46 with 82k miles. If I accelerate hard from a standstill blue smoke comes out of the exhaust. It doesn't happen when leaving normally. Also, if run hard, I'll notice smoke coming from the left manifold...thoughts??
Racer
Joined: Aug 2007
Posts: 323
Likes: 0
From: CA
Hey guys..I'm hoping someone can help me with this problem. I have a 70 L46 with 82k miles. If I accelerate hard from a standstill blue smoke comes out of the exhaust. It doesn't happen when leaving normally. Also, if run hard, I'll notice smoke coming from the left manifold...thoughts??
Instructor
Joined: Jun 2008
Posts: 142
Likes: 7
From: Syracuse NY
yeah usually burning oil, if you can rev your engine parked, and go behind and see oif it smells a little like burning oil, also sometimes (usually white smoke) you can burn anti-freze is your engine running hot?
is it running out of oil frequently?
is it running out of oil frequently?
...and white is water. 
Le Mans Master
Joined: May 2006
Posts: 7,708
Likes: 266
From: indy indiana
if it does it on start-up,chances are its the valve seals,easily replaced at a very modest price. Just under hard accel..make me wonder if the rings are about at the stage to need replacement. Do a compression test,static and the other.That,above all else,will tell you the state of you engine innards. Yep,gray or blue smoke is always oil burning.By the way,if it just did it in decellaration mode, high vacum exist,so oil would be sucked past worn rings and /or valve seals.
