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Re: [turbobike] SHURflo pumps suck

Tim Drew (timdrew@cix.co.uk)
Tue, 15 Jun 1999 05:59 +0100 (BST)

Thanks for the reply Jeff,

> Sounds like maybe your oil volume to the turbo is excessive
> or the pump is pulling air instead of oil,...

For testing I've temporally fitted transparent pipes to the oil return 
system, so I know that pumps definitely pulling oil.

> I would put a 3/16"  restrictor  in the turbo oil supply line to
> limit volume, not pressure.

Well I'm supplying the oil to the turbo via dash 4 (7/32"ID) hose which is 
reduced slightly where it's pushed over a barb type fitting on the turbo. 
So I think the supply is already restricted to 3/16", or there abouts. 
However what you say does make some sense because the system seems to work 
fine until the oil gets hot, and I guess less viscus. I could try 
restricting the flow still further and monitoring the pressure with a 
gauge fitted between the restricter and the turbo. I'll check to see what 
min and max oil pressure Garret recommend for the T3.

Thank for the pointer Jeff.

Regards

Tim Drew
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