Air & boost loss - help!

[Brisel]

I have lost power & there is a whistle like an air hose has blown.

Will it have wrecked a turbo?

Haven't driven it far or hard since it let go. It's not going anywhere apart from a very slow run to the garage (Williams Automotive in Ferndown, Dorset).

Is it easy to get to the air hoses or is it an engine out job?

Nervous...

[juice]

first off need to be pressure tested to see where the leak is coming from
most common areas are the rubber intake hoses that come off the Y ppipe, also the charge pressure pipes where they meet the throttle body area, the gap leaks air. Also on the lower end of the charge pipes that connect to the Intercoolers can blow clips off sometimes so should check them all out

of course then theres the one way valves under the carbon covers, Diverter valves, and other various hoses on the back of the engine.

shouldnt be too hard to find with a good mechanic.

[Brisel]

Update:

I have blown a turbo - iron filings found in the oil return line! FFS

They have guesstimated £4.8k to have the engine out to replace both turbos with OEM & may add £1.3k if the clutch needs changing while the engine is out. Is this reasonable?

What other options do I have?

Sell as work in progress or fix it up properly & keep it for a few more years?

[juice]

why not buy a pair of ko4 turbos from Loba motorsport, i think they are about 1600 plus delivery, and book yourself into MRC ... would work out cheaper then your 4.8k quote for sure....

i would keep as if you sold as work in progress someone will offer you peanuts and we all know our cars are worth more then that

[Nige_RS4]

I would only entrust this sort of work to a specialist i.e. MRC or Unit 20 - get your car trailered to them.

There may be an underlying problem that caused the turbo failure and it needs sorting before you bolt a new pair of turbos on!

Price seems a bit steep, an OEM clutch is less than £500 and the gearbox is already out, so labour should be next to nothing.

[mikeyquattro]

Also, dont discount Tom cockings as he's not too far from you

[S2tuner]

http://www.rcmr.co.uk

[Brisel]

Thanks for the replies.

What underlying problem would cause a turbo bearing to fail? Excessive boost or poor oil flow? I did have the oil light come on occasionally when cold a couple of years ago so I got the oil flushed & the strainer cleaned. That seemed to cure it & I've had no more troubles with it until now.

Does the B5 have a dual mass flywheel? If so, would replacing that push the repair bill for that section up to circa £1300?

[juice]

Turbos fail for many reasons, if not warmed up or colled down properly. also air leaks are the biggest cause they make the turbo work harder to make the power you request (due to the leak) making it eventually fail.

havent a clue how much the dual mass flywheel ccosts.

[ollys]

Thanks for the replies.

What underlying problem would cause a turbo bearing to fail? Excessive boost or poor oil flow? I did have the oil light come on occasionally when cold a couple of years ago so I got the oil flushed & the strainer cleaned. That seemed to cure it & I've had no more troubles with it until now.

Does the B5 have a dual mass flywheel? If so, would replacing that push the repair bill for that section up to circa £1300?

OEM dual mass flywheel is about £800 IIRC - so that figure does not sound an outlandish quote. Many go for a lightweight flywheel party because of cost.

[Brisel]

This job is getting more expensive by the day - the clutch was 80% worn & the flywheel had damage so I told them to replace them too.

Apparently a vane broke off the exhaust turbine which caused the bearing to fail. The vane was found down by the cat but hadn't damaged it (the cat converter), thank feck! Would overspeeding cause a vane to break off?

[shaky]

Oh no, this does not sound good!!

I occasionaly come on here for a look around, see what I've been missing, and to see my old car with problems is not good

Sorry to hear this Brisel

Out of interest how many miles has she got under her belt now??

[Brisel]

Hi Shaky!

Good to hear from you. How's the Porka?

The ol' girl's got 77 000 miles on the clock now. I must admit that she is only a weekend car & gets driven enthusiastically but without hitting the rev limiter. I never work it hard until it has fully warmed up & always cool it down before turning it off too. Hey ho.

I should have the car back by the weekend (unless they find anything else fecked...)

[shaky]

The Porka is very good thanks, it's that good I'm struggling to find something to change too next.

Not quite clocked up as many miles as yourself, don't find the time - mines only just seen 39k now

Fingers crossed that the car comes back all fixed up and ready to go, so you can enjoy - especially as the weather's picking up!!

[Brisel]

Well, she's fixed at last! Thanks to Gary at Williams Automotive in Ferndown. He replaced both turbos, the flywheel & clutch as well as all fluids & the aircon.

My wallet is £5700 lighter but having had a really good look at everything downstream of the knackered turbo there's no other issues. No bits anywhere esle in the air or oil systems.

I took it out for a hoon this evening & it's running well.

Thanks for all your helpful suggestions