blue smoke under hard rev or boost

[thereef]

Leads me to believe it's a bad seal in my 14b, but is there any way to confirm this? I'm pretty worried it's blow-by for some reason.. I guess just me preparing for the worst.

I can hold idle at ~2500rpm all day long and not get any smoke, but if I do hard revs (wot) I get a very small puff in the lower rpm range, but once I hit boost I get a nice large cloud of thick blue smoke that hangs for a long time down the road.

I'm going to try to get my hands on a leak down test, already tried a compression test but the compression tester had a crappy flexible tubing and I couldn't get it screwed down into the spark plug threads adequately.

Car feels like it has plenty of power. Idles like a champion..

 

[92AWDHX40]

I would check for shaft play in the turbo, for starters, worse case pull the turbo apart and check it out there is a video on youtube for turbo repair.

 

[GRAVEDIGGER]

I'm going to try to get my hands on a leak down test, already tried a compression test but the compression tester had a crappy flexible tubing and I couldn't get it screwed down into the spark plug threads adequately.
..

Sounds like you know what to do... Get a better tester and go from there. You won't know until which way to go until you do that first.

 

[thereef]

iugrad92 -- is shaft play a definitive sign of leaking seals?

GRAVEDIGGER -- you mean I actually have to do WORK? *sigh*


I'll see what I can find out tonight and report back. If anyone else has anything they want me to do/try let me know and I'll get you results come sundown tonight.

 

[GRAVEDIGGER]

I would check for shaft play in the turbo, .

Yes this ^^^.... It's quick and easy to do. If you've got considerable up and down movement, or ANY in and out movement in the shaft you probably are leaking oil past the seals in the center section.

 

[DSMTyson]

I quick way to see is to just do a wet compression test. Its easy and fast.

A leak down test would be better, but takes a little longer.

Just do a regular compression test, write down each number. Then do a wet compression test and compare the numbers.

Then check for shaft play.

Yes this ^^^.... It's quick and easy to do. If you've got considerable up and down movement, or ANY in and out movement in the shaft you probably are leaking oil past the seals in the center section.

This ^

 

[captainapex]

I have the same.problem. No shaft play n 150 across the board. Could be blow by. Im installing a catch can n seeing where else it would take me