94 Corolla Dx Blowing Blue Smoke Options

[ntjacks23]

Hi I have a 1994 toyota corolla dx 1.6l that I just bought as a first car. looked at everything and its all good except i just changed the oil and filter putting 2.6 quarts/ 3 liters in the engine and it is putting out blue smoke and an excessive amount liquid out of the tail pipe when I rev the engine about half way? Not sure of the cause but I dont think it was doing it on the way home from getting it... anyways ive been just starting it up and messing around with it because its not on the road yet so I was wondering maybe that could be a problem starting it and shutting it off within only maybe a minute or two. so maybe it just needs a good run down the road to clean it up?

[parisiangrrl]

So this is only happening when you rev it up? But you don't know yet if it does it when you drive it? How long has it not been on the road & why? And how many miles are on the car?

[parisiangrrl]

normally when you see blue/ blueish smoke coming out of your car's tailpipe, it means your burning oil. If that's the case you have an oil leak due to a bad valve seal(s), piston ring(s), headgasket... those kinds of things. I would start by checking those. With the age of the car, I wouldn't doubt it especially if it's never been done before. I had a 94 H Prelude & its valve seals were in need of replacing. Typical for any car. My money is on the headgasket though, because of the liquid in the tail pipe. I had to replace a few of those on my other cars (which were all in the 91-94 range as well). Usually a bad headgasket means water in your oil, oil in your water & some of that water coming out of your tailpipe. Check all of them though, no matter what you find. Hope that helps if you haven't already figured it out!

[maxjlone]

With blue smoke you've got oil getting by either the piston rings or the valve stem seals. Not unheard of for high-mileage cars...I'm guessing upwards of 200k miles. The former requires an engine rebuild while the latter can be fixed with new stem seals. But if a rebuild is done, the seals are replaced too along with alot of other items.

I hate to suggest it but I think the previous owner put some oil treatment and/or used a heavier weight oil in the engine before selling it to hide the smoking problem. This would increase the viscosity and cause it to flow slower, keeping it from seeping past the seals and rings as quickly thus minimizing the smoke.
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