Turbocharger rebuild advice

[steven-j]

Hello all

I have removed the turbo charger from my fathers 2003 Forester XT (TF035 HM 49135-04500) in an attempt to troubleshoot a performance issue

On inspection there is significant play in the shaft in all directions. I have no previous experience with turbo charged engines

Is anyone able to offer any recommendations for the next steps?

I have attempted to source a replacement CHRA but suppliers have replied stating that a suitable replacement is not available. I have also had separate advice stating that balancing would be required after a new CHRA was installed anyway

Do any particular turbo repair companies stand out for their service and value for money based on people's experience?

Thanks in advance

Steven

[savage bulldogs]

What we're the symptoms that you had and what turbo is fitted to the foz ?

As if its a tdo4 they rarely fail and are readily available second hand , due to being upgraded on most modified impreza wrx's. Also the tdo4's are a journal base core which require a film of oil to take up the play on the shaft , so if it hasn't been run for a while will have "side to side" play .

 

Afaik most new or refurbished turbo cores come pre balanced and can just be fitted to the old turbos compressor housings 

[steven-j]

Hi there - thanks for your reply

It is a TF035 HM turbo (#49135-04500). This turbo seems to be quite widely used (Mistubishi L200's, Ford Transit?) but the CHRA's are not available for this specific part number (04500) from the suppliers I have contacted

The car was performing as if there was no turbo installed. I struggled to get past 60mph on a test drive

I could not see any issues with any of the vacuum hoses or intake pipework with everything connected. The exhaust had a small leak at the union from the 2nd (of 2 cats) to the centre exhaust section

According to the dipstick there is no oil in the sump so I am confident this has lead to the turbo failure (at 140k miles). Identifying why there is no oil is another issue for attention

So I removed the turbo to inspect the turbine and pipework in closer detail

The control system opens and closes as I believe it should but the turbine has significant play

Does anyone know of a supplier of CHRA's for this unit? Or can someone recommend a turbo repair company from good experience?

Thanks again

Steven

[savage bulldogs]

I'd imagine that if theres no external oil leaks the tmic would have a fair amount of oil in and spark plugs would show it's been burning oil  . Have you done a compression and leak down test to rule out a engine issue ?

Actuator or boost solenoid faut could also cause a lack of boost /power too.

Although I've always said keep clear of cheap Chinese turbos ,i have bought a few spares from kinigwa through eBay and haven't had any issuse with quality. 

I know a few that have used essex turbos or owen developments with good results but thats been for performance applications. Otherwise unfortunately, other than suggesting finding a second hand oe replacement i can't help .