Buff Of Blue Smoke On Decel

[Stixbnr32]

Hey guys,

Got told there was a buff of blue smoke after I came off boost.

I have -5s with fully forged engine and tomei oil pump.

was thinking maybe a oil seal on the turbo side and abit of oil getting into the exhaust housing.

Did a google search in SAU seems to be the consensus.

Thoughts?

[jangles]

Hey guys,

Got told there was a buff of blue smoke after I came off boost.

I have -5s with fully forged engine and tomei oil pump.

was thinking maybe a oil seal on the turbo side and abit of oil getting into the exhaust housing.

Did a google search in SAU seems to be the consensus.

Thoughts?

Sounds like what was happening when my -7's were leaking

[Stixbnr32]

Thanks - was it a pain to fix the leak?

[GTSBoy]

If taking twins off an RB26, dismantling them and rebuilding isn't a pain, I don't know what could be!

[Stixbnr32]

HAHAAHAHAHA - no i just didnt know how to fix the leak. Simple seal or a full rebuild of the turbo.

Didnt think they would need a rebuild.

bugger - done that once already when I ran a bearing.

[GTSBoy]

The seals are inside the turbo. Tearing them apart and inserting a new seal is still a full rebuild. If you've already done a bearing then the failure of the seal may be related to the bearing death or to the work done to repair it.

[Stixbnr32]

They were rebuilt as a "just in case" when i rebuilt the engine.

that is frustrating $500 a rebuild.

[breaker1845]

How long ago where they rebuilt? Did you get any warranty with the rebuild? probably not I am guessing. If it was not long ago then you might have an underlying issue with oil supply for your turbos.

Full rebuild required and as GTSBoy said, possible it could of happened during the repair too if due car wasn't taken.

Definitely frustrating if you are going to do it yourself or costly if you aren't, removed plenty from a few cars and it's never any more fun than the first time.

[Stixbnr32]

Engine and turbos were rebuilt 10 months ago (15,000km).

I might be able to get the turbo guy to come to the party but my tuners labour wont be included.

If it works out that way then I will be ok with that.

Thanks guys - its about what i thought.

[jangles]

Dont worry bout it for a while if its not too bad.

Doesn't take much in the way of shaft wear for them to leak. If there is any wear, get them machine the step out and fit the next size seal. Thats what we did to mine.

[djr81]

In the olden days a puff of smoke on over run and on startup for that matter was valve stem seals.

[Stixbnr32]

Tuner has said dont panic yet could be oil in the intercooler from the failed bearing's.

Just havnt noticed it or its starting catching on over run.

no blue smoke on startup.