wear ring gap? how much?

[JLewis]

hey guys, got major cavitation problems on my 00 GPR. PPK is on the way but looking at my prop with some feeler guages, i found that there is .010" clearance between prop and wear ring all the way around. Is that way too much? and is that one of my main cavitation issues?

[porksword]

This is quoted directly from one of Impros recent post>>>>

"The least gap between the impeller and the liner the better. .007-.010" per side is doing real good. If you get beyond .020" per side, you're losing efficiency and performance."

I would say your fine.

[WATER WOODY]

This is quoted directly from one of Impros recent post>>>>

"The least gap between the impeller and the liner the better. .007-.010" per side is doing real good. If you get beyond .020" per side, you're losing efficiency and performance."

I would say your fine.

There it is......mines at .007,you are good with .010

[JLewis]

Cool, thanks guys for the input. i'll what to see how it does after the PPK is installed. i takes off like there is 10lbs of weeds stuck up in there.

[RX951]

thats good, yur fine


manual specs>

Impeller clearance mm (in) 0.35 ~ 0.45 (0.014 ~ 0.01

[littlej72]

Is there supposed to be a gap at the back of the liner where the pump halves come together I have one, about an 8th of an inch. Just seeing how deep into this pump I need to go.