mercades c250 gt20

[Dum-Dum]

Another one from this corner of the earth. We really need to sort a Bicester meet when I'm back from holiday.

[Anton]

I'm around too

[rryan]

ah lots of local people, a meet would be good

ive got a scooby Td04 on at the moment, but i think i got lucky when i guessimated the angle, and welded the exhaust.

ill have a look at rickys thread.

[silverzx]

Something like this www.ebay.co.uk/itm/321233914589

[Piggy]

Good link there...handy that...

some turbos have the V band flange on them already so das is goot

[Chris_90]

So can you weld that v band thing to the turbo? Looks good idea saves the messing of trying to get it at the right angles

[rryan]

i think the v band on the gt20 is slightly bigger than 3 inch (not a common size), from mercades the correct clamp for that turbo is around £15 quid, so i could buy that and then make a custom band to weld to my three inch elbow.

[Ricky]

I used a 3" elbow with v band clamp, had to grind down the mating surface on the turbo for the clamp to fit though. I also used a TD04 actuator aswell. I had mine on a dyno but made poor results because it was very de tuned because I didn't want to blow it up, I've seen how quickly the EGT's rise on boost.

[rryan]

heres i few pictures

sorry for hi-jacking your thread by the way

---

yeah i thought i might have to square off the turbo face.

so you used a 3 inch v band clamp?

[Ricky]

That's identical to how mine was.

[anto]

Ive just acquired one of these Merc C250td turbos and it is confusing the hell out of me lol
The id plate says the following;

GT20
A6050960599
454 156 - 1 AL0001
A/R Turbine side is .38
A/R Compressor side is .51

You would think it has to be a GT20 of some variation but the dieselavante site gives it as a GT25c based on the A6050960599 nr so it is contradicting itself.

If it is a GT20 has anyone a clue as to what derivative of GT20 it is?

[Chris_90]

It was said some were that gt25c is bascily a gt20 just the old code for it.

[anto]

Few measurements taken from the turbo i have;

Comp Exducer - 52mm
Comp Inducer - 40mm
Turbine Exducer - 52mm
Turbine Exducer - 40mm

Rough measurements, only had a tape measure, my uncle nicked my calipers.
Does that sound like a GT2052s, or at least a version of one?

[Tom]

Yep...

[mark306]

I have this turbo on my C250TD
GT20
A6050960599
454 156 - 1 AL0001
I'm trying to find a rebuild kit for it as the bearings have way too much play in them.
Anyone know where I can get a kit from ?

I did order one from ebay but the seller supplied a GT15-25 universal kit (which just doesn't fit) and now can't supply the right kit.
I even sent him the full part number before ordering.

[anto]

Contact Garrett and see if they provide a service kit for it?

[Uberderv]

I've bought a kit of these before-

Melett Limited

Unit N Zenith Park
Whaley Road
Barnsley
S75 1HT
United Kingdom

Main Sales Line +44 (0)1226 320939

Wasnt your turbo but i am sure they could sort one out