Turbo carbon'd up how to disolve?

[Latestarter1]

I guess you that you must have machined oversize to a depth which would just coincide with the start of the radius then?

Any idea of the wall thickness of the stainless sleeve they fitted?

An easy job for me to get done due to the nature of my work (engineering fab/mc shop)!

Thanks,Rob.

Spot on! Just machine up to a point short of the radius, gas flow tends to keep this area pretty clean. Threre is plenty of meat in the casting.

1 mm wall tube works real well, dairy industry is big user of 316 stainless and there are plenty of suppliers of tube, milk is far more aggressive stuff than seawater. I had drawing of turbine housing to work off, however see no reason why KKK will not suppy a drawing of your specific turbo model. Dairy tubing tends to be in imperial, machine shop just took a wee cut to bring it true.

Try sourcing a re-built centre section, known as a cartridge, or have your old cartridge rebuilt. Should cost around £350 for a rebuilt cartridge.

As previously stated only use a Scotchbrite pad and brake cleaner on the compressor side, never have it blasted. If you are building a rocket ship use Solvol Autosol to polish inside of compressor housing, we used this on race trucks.

You will end up with a fit and forget turbo.

Good luck

 

[RobWales]

New comp wheel arrived from France yesterday and cartridge is assembled,runs smoother that a smooooth thing! No slop axially or radially....

Now off to work with the turbine casting to pass onto our m/c shop manager to get it bored out,then will fit a " Super Duplex" sleeve as you stated in the exhaust throat...we have plenty of this stuff....super tuff material used in the offshore pump and valve industry so will be well up to the job.

Thanks again for the tips