Smoke and alot of it

[ntmaster]

Having just rebuilt the heads 3 months ago to stop the smoking coming out of the exhaust pipe. A bit of smoke after rebuild but slowly went away after burning of oil in manifold. Just today, it start blowing smoke again. Now what, I figure it's the rings but cylinders looked great, only has 78k miles on it. Any suggestions.

[ganun]

Pull the plugs and take alook, maybe it's just one cyl that's the culprit

[docrodg]

Could be rings, could also be something else. What color smoke? May be a rich mixture and plug fouling, or valve seals (did they put in good viton seals?) etc. Pull plugs and check them, do a leakdown and compression test while plugs are out.

[ntmaster]

Rebuilt heads myself, most of oil was coming from the #5 cylinder. Replaced seals, didn't replace valve guide though. It did smoke for a bit after starting after rebuild but figured it was oil left in manifold burning off which seems right because it did stop smoking. Told the owner when I started the rebuild, should do a complete rebuilt minus splitting the case but he wanted it done on the cheap. Best I let him make the decision what he wants done. I can do it in less than 5 days once getting the parts. He wants to sell it ASAP but not with it smoking. So what do you think, all new guides and rings....anything else?

[Lapkritis]

Do a compression and leak down test. A lot of abuse can be made in a couple months especially if the engine isn't fueled properly.

[thepenguin99]

Sounds like the owner needs a mechanic to me.