Has any one experienecd excesive power valve noise before on there viper, I recentlly bought a blown up viper , when I got it back together I noticed the power valves where noisier than my previous viper and my buddys vipers, I've cleaned and adjusted alot of powervalves before and never had a problem before.
03viperguy
Moderator
what do you mean by being loud? like when they are open, or from the servo??
Comming from the valve housing on the cylinder, I just rebuilt the motor and cleaned the interior of the cylinders and where the valve slides in and out of, plus the valve it self. I think it maybe because of the lack of lube there right now, it seems to be getting quiter the more I run it
quebec#1
New member
They all make some noise . At an idle right ?
blue missile
New member
could someone explain what this noise sounds like. i have a few odd noises one kinds sounds like rubbing i tought my primary was rubbing on the guard but that would be to easy.
I don't think you really hear the powervalves do you? All they do is sit there at idle and pull out as the r's increase.
Probly hearing piston slap........
Probly hearing piston slap........
I used the old screw driver trick and pin pointed the noise at the power valve housing, I thought it could be piston slap at first , but I replaced one cylinder and piston and all three sound the same.
03viperguy
Moderator
I love the screwdriver trick 
this is a mystery, what did you use to clean them??
this is a mystery, what did you use to clean them??