I had my freind follow me the other night ot see if I get any smoke on boost, and there is none. Basically here i teh deal, the car smokes a bit on startup like it always did. It goes away after a few short seconds. I take the car out and drive adn get in nice and warmed up. hwn I come back home an dget out of teh car, th exhaut is clean, then all of a sudden about 5 imnutes after I stop driving, it starts to come out. burning oil. it will stop for a few secs, then start again.

I am thinking turbos of course, but anyone haev any other ideas taht could save me the diagnosis.

thanks.

BTW, the car rusn like a beast after visiting KD, and the new engine is amazing. I am goign to post pics and dyno sheets soon.

 

anybody? I know it can't be intake seals or I would be blowing oil, is it possible that oil is leaking into exhaust side?

 

^^^

 

What exactly are your engine oil mods? Did you talk to Dave to see if whatever mods he made could be the cause of it?

Have you considered the MOP? It might be injecting excess oil during idle for whatever reason. Have you tried to disconnect it to see if you still get the same burning during idle?

 

Hey,

well engine had run about 3k miles, I spoke with the shop that did my engine, and nothign would be causing that. The only thing I can think of is the turbine seal in the turbo. I test all teh resistence on the OMP leads, etc. no porblem there, and eth volts re okay via PFC. I haevnm;t disconnected that though, I guess I will try. and see what happens.

Funny thing is it won't happen if engine is idling at 11oo rpm, say with fans and A/C on, only when it jumps down to the base idle speed (950), then after a few secs is start to pour the smoke out.

I chck the vacuum lien from primary turbo inlet to oil filler neck and it is all clear, so that is okay too. I haev been runnign it hard though 15 lbs evey day with 50c intake temps. possibly just some oil sludge, etc from gas fiulled oil.

BTW, I saw on a website that turbine seal failure coudl be caue from bade oil lines, not draining, etc. anyone know how to test them? I did not replace them when I pulled and installed turbos with my new engine.

thanks

 

What was the cause / fix ...

I have simular thing.

thanks,

:~) Steve

 

It's probably that time .... the carbon seals have finally gotten abused enough that they do not seat well anymore. Hence, the oil blow-by and the smoke out the back. My car did the same number for a little while before it got really bad ... and smoked excessively ALL the time. It's definitely the turbos. Sorry, dude. They'll set you back a pretty penny.

As far as the inlet and outlet oil lines to the turbo assembly, it would've been smarter to replace them while you had the engine out. But, the oil coking usually doesn't happen in the oil lines ... it more often happens in the oil passages inside the turbo assembly. The only way I know to test the lines is to take them off and blow some air through them with an air compressor. But, like I said, it's probably the carbon seal saying '"i'm done".

 

Yo KZ, what's the verdict on your smoke ? I'm having the same problem at 800 miles on a newly rebuilt Hayes Piece of **** engine ! I first thought it was the turbos but pulled all the piping and couldn't find tons of oil in there. THen I actually ran the car with the IC piping off and it still smoked.............that eliminated the turbos. After talking with some engine builders it seems as though the oil seal on the front rotor is not sealing due to use of old springs that hold the seal in place. Bout to send this freshly rebuilt piece of poo to someone else who can pull it apart and sees what's in the good ole Hayes Rotary box.