400LB Thrust Ambitious Project

[madpatty]

Hi Racket.
I am not able to see any alignment locators between the two split pieces of the impeller.

The rear internal spline seems integral part of the turbine wheel whereas there is a shaft press fitted on the exhaust side of the impeller.

I still cannot find if that big chunk of metal with curvic coupling on the exhaust side is integral part of the turbine or no.

Some more pictures for your reference.
I am not sure how these split impellers are assembled.



Thanks

[racket]

Hi Patty

Is that a small "pin" inboard of the curvic on the exhaust side ??

Looks like the curvic and exducer are a single piece .

Cheers
John

[madpatty]

Hi Racket.

Yes there are 2 pins inboard of the curvic.
I think that shaft will come out eventually.

I also think the exhaust and the coupling are a single piece. I don’t know if I can machine it.

I still don’t know how these are joint?

Thanks

[racket]

Hi Patty

You may need to "machine" using a cutoff disc , though the exducer and curvic could be made from a "softer??" material than the main wheel section due to its lower stresses.

Those couple of pins might need removing before disassembly , perhaps the shaft can then be screwed out ...........don't know for sure , just guessing :-)

Cheers
John