New poster! (less than 10 posts)
Situation is next...
Brand new T25 turbo, oiled before first start, running at 0.3 bars for first 1000km, dry on intake side and compressor side, no play in shaft but still smokes like crazy like oil seals are gone. Checked turbo drain hose and it is fine. Oil feed pipe is 3.7mm. Could it be that turbo is getting too much oil and it is over-floating seals? I will get new oil inlet 2.5mm and try...
What do you say?
Cheers
Ill still say crap turbo build, if its a rebuilt unit. I doubt the c1j can produce enough oil pressure to blow it out of the back seal.
Have you tried your spare turbo yet?
it is more likely that there was still swarf or junk in the oil from the rebuild. I've given up telling people to fit pre-filters to new engine builds, they usually don't listen and fit their brand new turbo anway. I wouldn't dream of putting a new turbo on a fresh built engine.
If it smokes it's because something is worn, or scored usually.
New poster! (less than 10 posts)
It's new unit. Haven't tried old T2 yet...Originally Posted by Brigsy
New poster! (less than 10 posts)
Will try inlet first and hope for the best. If not, turbo needs to go off
same problem with mine when i got it first!!get in touch with supplier immediatly and demand a replacement!they probably gave it to a young inexperienced hungover to rebuild it!!.
that damn Adam L again huhsame problem with mine when i got it first!!get in touch with supplier immediatly and demand a replacement!they probably gave it to a young inexperienced hungover to rebuild it!!
You never told me that
I'm still suspecting the builder .Engine or turbo ?Takes ya pick
i fitted a decent turbo to an old engine, and there was some crap inside the engine even after i changed the oil. my turbo didnt last a few hundred miles as there was crap on the bearing. now had the turbo rebuilt , fresh oil again with a pre turbo filter and no problems since. those pre filters are well worth having after a fair bit of reading on them, there expensive for a filter but not a fraction of a turbo rebuild cost.
New poster! (less than 10 posts)
Turbo is out and there is lot of oil on downpipe. I took turbo to local turbo specialist and will know whats going on not before Monday. I want to drive my GTT after 2 years of waiting
having the same sort of problem m8. i just put an old unit on had laying about on. but its still smokin this time on boost. gana definatley have to get a brand new 1. hopefully be next week though.
got a few other things i need to pay first. event though the 5 should come first lol
To conclude my problems with brand new turbo...
There was factory fault on central housing (where oil and water connections are). There was gap of 0.020 while maximum tolerance is up to 0.015. Because of that gap the turbo shaft had little more play than it should, so now the shaft is out of tolerance. Good news is that bearing are Ok so I can make a keychain out of it
New turbo needed!!! Offers on PM please
Last edited by jure; 15-10-2008 at 10:22.
good morning sir, i have just bought a replcment turbo unit, my currunt turbo seems to be making a tapping sound near the back of it, near elbow end. i also noticed air blowing out under the join (were turbo meets manifold, square where the 4 bolts go through...i put in a stainless gasket, still aint sorted it, when i press the accelarator pedel the sound goes...when shes back on idle, shes starts tapping again....maybe the manifold, piston, bottom bearing etc
where does the pre filter go then, never heared of them before?
First thing to see is the problem with turbo is to check the shaft. Remove air filter and se is there any play up-down and in-out. Tapping noise on idle is often closely related to engine valves and, not so often, to cracked piston. What is frequency of tapping. Does it tap when you rev the car without boost?good morning sir, i have just bought a replcment turbo unit, my currunt turbo seems to be making a tapping sound near the back of it, near elbow end. i also noticed air blowing out under the join (were turbo meets manifold, square where the 4 bolts go through...i put in a stainless gasket, still aint sorted it, when i press the accelarator pedel the sound goes...when shes back on idle, shes starts tapping again
2richi: Filter is placed on oil feed pipe just before oil inlet on the turbo.
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