Power Valves - Care and Feeding?

[Aquaholic]

What's the care and feeding like? I've never had a motor setup with these things before. What's involved,maintenance wise, with these contraptions?

Anything special to keep an eye out for?

 

[Idok]

my Xscream PV engine is coming up on 2 years old and have nt not touched the PV's a single time..

 

[rollin5150]

My old polaris Pro785 had power valves. I would pull them every season and clean to prevent them from gumming up and sticking.

 

[Big Kahuna]

100% synthetic oil.

 

[rollin5150]

100% synthetic oil.

I ran amsoil intercepter. Has extra detergents to keep the buildup to a minimum. I ran twice as long without cleaning valves on the pro than I did on other oils.

 

[SJBrit]

Chuck recommends Quicksilver in his motors - not synthetic. Just saying.

 

[Hirschfelt]

Chuck recommends Quicksilver in his motors - not synthetic. Just saying.

Quicksilver?

 

[Lucaumpits]

yeap

Quicksilver?

 

[NVJAY775]

That's why I'm running it. But.... No PV's yet dammit!

 

[SUPERTUNE]

The XS 1000's do get just a little bit of oil build up in the bellows, so just a simple cleaning every 3 months and replace the bellows once a year to keep them from getting stiff from the race fuel.
When you run a heavy mix of oil... the power valves don't get caked with carbon like you would if you ran oil injection or like 50:1 premix.

 

[Aquaholic]

When you run a heavy mix of oil... the power valves don't get caked with carbon like you would if you ran oil injection or like 50:1 premix.

Interesting. How does that work? I would think that by running a heavier oil mix... that the Valves would be more prone to gunk build up.

 

[Pablo]

anyone know which orientation (#1 or #2) is correct for the guillotine slider on a power valve? I pulled mine to inspect and didn't pay attention to how the slider was positioned. Each slider has a tapered tip as shown in pic.

 

[Big Kahuna]

it should match the roof angle of the port. image 1

 

[Kny21]

If anything like a seadoo it's #2 iirc.

 

[brobb]

all the PV i have seen the beveled edge went flush with the cylinder like #2 if it was put in like in #1 the piston would hit it because i stuck in further cuz of the angle the PV is on. this is just what i have seen.