tercel's owner

I'm looking to buy a tercel 94 LS automatic. There's only a problem : she burns too much oil when starting the engine...there's a big blue smoke behind, for about 10 minutes and better after. A seals valves job suppose to be done on it next week, but I want to know if something else could be done on it at the same time while engine open, like cylinders, rings... Can someone help me ?

Thanks !

Jay

97cavalier

You said it was blue? that usaly indicates that there is a head gasket leake, because there is radiator fluid in the oil and it burns blue. Get some die to put in your radiator and run it for a copple of days. The get a black light so you can see the die and check your oil to see if the die is in it.

wrangler

auto shop... day one... blue smoke = oil.... white smoke = water.... black smoke = fuel the tercel has a history of some inferior valve guide seals...

97cavalier

rings would be a good idea, because i have a 95 with 115,000 miles and they are starting to pump a little oil. And my damn crank shaft seal is going out. i don't know if you have this problem also or not.

gator2764

I found the oil rings collapsed on my 92 when I did a partial rebuild. The valve guide seals are the first thing to go on these motors.

unisoul

In my opinion (note key word opinion), you may be experiencing either one or both of the below issues.

1. (Cheap fix May or may not work) Your Oil is blowing by your piston rings, use thicker engine oil. If in the past you used thicker engine oil, and then changed to a thinner, the engines tolerances would allow some oil to slide into the piston, and burn, hence the blue smoke at engine start up.

If your car has 75k plus, try using a high mileage oil, as it has additives to help expand your rings, to help prevent blow by.

(Expensive fix) Rebuild engine

2. Your car may have a good amount of carbon deposits. I recommend http://www.rxp.com/ .

jijiandfarmgang

I agree with Wrangler on this one. I doubt the rings are bad. You could do a compression test on the engine, then do a wet compression test. A wet compression test is where you put oil in the cylinders then test for compression. You could compare the two numbers for each cylinder, and if the wet is considerably higher than the dry, you have a problem. Anyways, also high mileage oil doesn't expand your rings. Think about it, its not gonna make steel expand. The only additives high mileage oil has are ones to make your gaskets expand. Anywho so did you get the job done by now?