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Blown Turbo?

inthisglass

By inthisglass,
in Engines & Forced Induction

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inthisglass Grand Master

inthisglass

Posted
Posted

hey guys

hopefully someone can help me out

was driving home just now and it was raining

put my foot down a bit and hit the limiter in second and when i changed to third and tried to keep driving at a normal pace

i hear a high pitched whistling noise and i cant make the car rev over 2000 rpm in any gear

i was thinking that i had blown off a pipe somewhere but when i got it home into the shed there are no pipes coming off

and when i rev it i can hear the high pitched noise coming from the pod filter

but on idle the car sounds normal, no metal sounds to indicate a turbine wheel etc

and theres no black smoke when i rev it

any one have an idea?

cheers

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inthisglass Grand Master

inthisglass

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Posted

all the cooler pipes are on and theres no leaks

sadly it is the turbo :laugh:

had a look today

the intake wheels bearing is stuffed

the turbo still spins but doesnt make much pressure

i took the cooler pipe off just before the cross over pipe and can feel it blowing air through and can hear the sound from the turbo echoing up the pipe

the car will rev if its in neutral but wont move properly when under load

looks like its new turbo time

anyone have a turbo i can buy?

need a direct swap for the stock rb25 turbo

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bryno Collaborator

bryno

Posted
Posted
anyone have a turbo i can buy?

need a direct swap for the stock rb25 turbo

I've got a stock rb25 turbo off a series 2 33 I've just taken off. Assume it's in good condition, ran fine while it was on but i've got no idea how to check. Let me know if you're interested.

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geraus Mentor

geraus

Posted
Posted

hey there, mate i think i got the same problem, ive just change my spark plugs to bcp6res ones and now when i put my foot down slowly... i can hear a wierd strange high pitched whissle, could it also be the blow of valve?

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rgr34 Proficient

rgr34

Posted
Posted

my r34 has the same high pitched sound at the moment sounds like it from the vicinity of the turbo mine still makes boost thou 10psi but it screaming, screech sound is terrible......i thought it mite be a boost leak but i aint found it......

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rgr34 Proficient

rgr34

Posted
Posted

i have been told it might be an exhaust manifold leak may need a gasket?? hopefully turbo not on its way like the thread starters car........ i dont really have the patience to pull the thing apart.... time to take it to a workshop.....the joy of turbo cars ! hehe

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JET-25L Proficient

JET-25L

Posted
Posted

Damn mine blew about 2 weeks ago but it's all up and running again. They must all be throwing the towel in these days.

It's not that hard to change the turbo if you get another standard one. Could do it in an afternoon. With that said a workshop probably wouldn't charge that much if it only took an afternoon so.. Just do it yaself and learn lots along the way;)

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JET-25L Proficient

JET-25L

Posted
Posted (edited)

Grab a hold of the shaft and try and pull and push it and see if there's any movement that way or side to side or anything. Also check how freely it spins and if there's any bearing noises or vibrations as it turns:)

Edited by JET-25L
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SLEEPR85 Proficient

SLEEPR85

Posted
Posted
Damn mine blew about 2 weeks ago but it's all up and running again. They must all be throwing the towel in these days.

Its probably this crap fuel they are all slowly fazing in without us knowing. All upping the ethanol levels or something...

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bubba Grand Master

bubba

Posted
Posted
Its probably this crap fuel they are all slowly fazing in without us knowing. All upping the ethanol levels or something...

wtf does that have to do with turbos dying?

My 25 turbo is still going strong, it spent about a year at 12psi on an RB20 and nearly another year on an RB30!

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JET-25L Proficient

JET-25L

Posted
Posted

Just something on the bcp6es plugs... i had the iridium version of these in my car originally... then changed to the $4 BKR6E plugs with a smaller gap and it ran so much better. I always use these plugs now and i recommend these to anyone that brings an rb25 into my work.

rgr34 a whistling noise is usually a vacuum leak... doesn't necessarily affect idle too much but when you get up it it will be easily noticeable. Does it struggle to make that 10psi now? I'd be checking everything carefully and making sure it's all legit.

If you've got a leak between the turbo and manifold you should be able to hear air blowing out of it or heaps louder exhaust noise from the engine bay. Good luck!

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Sagiedaks Enthusiast

Sagiedaks

Posted
Posted
the noise i have is like a supercharger, a winning noise... its really wierd...

I had a FMIC and EBC installed, and boost upped to only 9 psi. Since then I've had a similar sound, when i hit full boost i can hear a metalic whining sound, similar to a supercharger sound. Not sure if the turbo is bad or if its just the sound resonating through the new cooler.

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