I love the supra, I love it not......

[josh930]

Thats the way I feel about this car.

Ok, I'm getting blue smoke on start up and lasts only until it warms up. I did a compression test and it basicly read 145 all the way across. I looked in the spark plug holes with a flash light and saw nothing "wet" on top on the pistons. I just put in a ct-26 57 trim turbo with ss braided oil lines that they said was rebuilt 3,000 miles ago. The car didnt blow smoke when I first put it on. The braided lines look like their leaking from the fittings up by the turbo so I'm not sure if that would cause any blue smoke comming out of the exhaust. Oh, and the other day when I was working on the turbo I had my friend change the oil and I told him to prime the filter. Well needless to say he forgot and I took it out for a drive. I didnt punch it or anything but that is around the time it started blowing blue smoke. Anyone have an answer? Thanks

 

[supra90turbo]

I never primed my filters...
Did you prime the turbo?
leaky fittings would not burn out the exhaust, rather on the exhaust.

 

[josh930]

oh, and the smoke will only happen after an hour or more of sitting. I saw alot about valve stem seals but where do I go from here. I cant check those out unless I pull the head. My motor has 130,000 on it.

 

[josh930]

Yea, the turbo was primed before I put it in.

Yea, it was wishful thinking on my part about the leaky fittings.

 

[Boostedstr8six]

If you're really skeptical about the valve stem seals and don't want to pull the head to check, try pulling the intake manifold and looking into the ports. It's still a bit of work but you would see if your valve stem seals were bad. If they weren't then you didn't have to pull the head and you can move on to other possibilities. If they were, you've already done a good chunk of the work to replace those seals. :icon_cool

If you do pull the intake, post some pics so we can all take a peek and offer opinions.

 

[born2drv]

I had this problem

- replaced 02 sensor first (it was very old), that wasn't it...
- removed all pcv pipes (they were really clogged full of lots of gunk), i replaced them with big hose and a catch can, still didn't help....
- replaced turbo... bingo the seals in my turbo were no good i guess.

 

[josh930]

Will do. I'm just getting as many opnions as I can so I can get rid of the simple ones before I start ripping out heads and motors. I just want this thing to stop giving me problems. Even if its for a little bit.

 

[josh930]

I have my old turbo that was ok but I am just no in the mood to pull my turbo out for the thrid time this year. I could try that but the turbo was rebilt 3,000 miles ago.

Why would a clogged pcv system blow blue smoke? Is it because of the build up of pressure cause excessive blow by on the rings?

 

[Boostedstr8six]

I have my old turbo that was ok but I am just no in the mood to pull my turbo out for the thrid time this year. I could try that but the turbo was rebilt 3,000 miles ago.

Yeah, the turbo would be something to check but your symptoms don't definitively point to it...I too am suffering from problems with a turbo that was "rebuilt 3000 miles ago" with "no shaft play whatsoever" and "solid" so I understand your concern there.

If you can, gather more detailed data on your symptoms. More detail = more gooder.

 

[josh930]

I just read something on supra forums about the oil pan being pressureized and blowing out the rings. On my car the oil drain plug keeps leaking oil out of it plus the braided lines are leakingt out of the fittings. I never had that problem before. Could that mean that the pcv is clogged and pressureizing the crank case? The guy that was talking about it never responded back but he was talking about the turbo seals being blown. Im confused? Thanks

 

[josh930]

At idle I'm aroud 40 on the oil pressure gauge at warm up. It also seems as though my boost has gone up about 2 psi. I have the greddy e-01 boost controller and emanage and didnt change the boost setting.

 

[born2drv]

yes, something like that... honestly i'm not too sure... all i know is i searched SM and SF extensively on puffing blue smoke and one guy mentioned his pcv was completely clogged and that caused his problems. also if you replace it with a catch can and don't use large enough hose for proper circulation it will cause the same problem. i know one other reason could be because of clogged oil lines on the turbo, from what i read.