The Crocodile Hunter

Does anyone know if the standard rear housing on a cossie T3 was fitted to any other cars from the factory?

A saab 900 T3 looks similar as it has the 3 bolt flange connection, not sure if it's the same though?

stevieturbo

Pretty sure No.

The Crocodile Hunter

Suspected that might be the case.

suppose the next question is can you buy them new from anywhere? Even if it's not a genuine Garrett?

mines got a massive crack in it.

Rsmat

iTrader: (2)

Pretty sure you can buy them new still , my mate bought a brand new .48 other week.

The Crocodile Hunter

Any idea where he got it from?

stevieturbo

Plenty of housings for Garrett etc turbos are available...I'd be doubtful of a Sierra Cosworth housing though.

Why would they be available new ? So many decades later. Unless someone has re-cast some, but it would be an incredibly small market for a series of turbos that lets face it these days....are well beyond their use by dates.

The Crocodile Hunter

There are loads of the type the have the 5 bolt wastegate, you can get .48 3 bolt adapters, but I can't see any that have the standard flange for the down pipe, they're all v band. Plus I dont know if they would actually fit?

I'm not sure I want to pay the stupid money people want for an old rusty looking piece of shit that's been outside for what looks like the last 5 years, just because it came off a cossie

stevieturbo

old rusty looking bits of shit can be cleaned.

But unless it is a resto or something that forces use of the ancient T3...upgrade to something modern.

That said, the Cossie T3 turbine housing was actually a pretty good design in terms of the internal gate, compared to a lot of other housings.

Some years ago, there was a 5 bolt adapter to a Cossie DP available, but haven't see them for a few years.

The Crocodile Hunter

yes I hear you, but it just makes it difficult to check in the picture for cracks etc.

What would you say is the going rate for one these days? Would you pay over Ł100 and take a chance? It doesn't seem that long ago Ł30ish was the going rate for a good one. Although times move on i know

The Crocodile Hunter

Its actually a .48 t34 on my car, and it hasn't done that many miles since it was rebuilt so I didn't really want to change it.

What is a bolt on modern turbo that will fit the down pipe? If that exists?

Rsmat

iTrader: (2)

Ring vince or mark at Turbo performance they should have them mate.

stevieturbo

Turbine housings crack, that's just reality. Rarely do they crack to the extent it's an issue. And if anything, I'd say Cossie ones are less likely to crack than some other designs.

Why do you not have a housing at present ? Surely if no housing....likely no turbo ? So just buy something decent and fit it instead ?

The Crocodile Hunter

I've taken it all apart this afternoon including the ball ache job of taking the manifold off. I needed to do this anyway as I've hot a leaking core plug in the head.

The turbo doesn't actually look that bad, however the turbo to top manifold joint was blowing at the bottom, and the connection between the two bits of the manifold didn't look to clever either. Would explain why I could smell fumes in the car.

I'll leave the turbo as it is for now. Who reckons a gasket between the turbo and manifold is a good idea? Or is it best to leave it out?

The Crocodile Hunter

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it currently got a t34 on it, just at first glance I thought it was worse that it actually is. Now it's off it doesn't look too bad, there is just a small crack about 10 - 15mm long close to where the waste gate rod goes through the housing

stevieturbo

If the two surfaces are perfectly flat....which they should always be. The no gasket is needed.

If they are not flat...make them flat.

but a lot of setups did use a thin metal gasket, although in reality I doubt it did too much

The Crocodile Hunter

to me it just looks like a potential point of failure really?

stevieturbo

What is ?

If the surfaces are flat and bolts tight, the gasket cannot fail. But as said, I would run without one and ensure the flanges are flat.

The Youth.

iTrader: (1)

don't use a gasket they do fail, I had one fail on my race car which meant I had to take the turbo off at the track to get all lthe gasket out, not an easy job on a 4x4

steve

The Crocodile Hunter

I've decided I'm not putting one back in. It's no different to the joint between the manifolds?

The Crocodile Hunter

Yes I agree, I can see where this one had let go.

Although I suspect it was caused by the surfaces not being clean enough?