Help identifying my supercharger

[BlownH2]

just purchased my H2 last week, I've always liked them and have been looking for a decent one for a very long time. And voila.i found a whipple supercharged one. It's a 2003 with 62k miles and no real issues....except for a slight "marbles in a blender sound" while at idle. not horrible just annoying, no loss of power, and it stops as soon as it gets some throttle. I noticed the tensioner was jumping quite a bit, so I replaced it, and the jumping has gone down to half of what it was, and the sound has gone away slightly with it, but I still have a small jump. Anyways. I have a feeling something is off inside of the sc. My issue is, I have no idea of which rebuild kit I should buy, because I'm not sure which whipple I have. Maybe someone can chime in, who has one, knows the model, or knows of something else that can be causing it? Maybe a how - to. I don't want to tear it apart if I don't have to, nor tear it apart if I'm not going to rebuild it. If you need more info, just ask.

thank you in advance.

 

[randeez]

not sure how many variations there are of them, but searching "LS side mount whipple" shouldnt yield to many results, almost sure they arent made any more. and i think they're all 2.3L twin screw. did you look all around it for a nameplate or serial number stamped on it?

 

[Scottydoggs]

take the belt off, then turn the pulley back and forth, like turn it right then snap it left hard, if you feel and hear a click its just the coupler. i know first hand on a m90 it sounds like rocks inside the blower at idle when its bad.

if the coupler is tight feeling, then fire it up for a minute belt off. if the sound is gone 100% it could be the bearings in the rear of the case.

 

[Rocket Man]

There should be a serial # on the snout or elsewhere, then email Whipple with it and they should be able to help you out. Also send them some pictures along with that.

 

[BlownH2]

take the belt off, then turn the pulley back and forth, like turn it right then snap it left hard, if you feel and hear a click its just the coupler. i know first hand on a m90 it sounds like rocks inside the blower at idle when its bad.


if the coupler is tight feeling, then fire it up for a minute belt off. if the sound is gone 100% it could be the bearings in the rear of the case.

Unfortunately, the supercharger does not have a dedicated belt to the crank, it runs on the serpentine belt....

 

[Scottydoggs]

Unfortunately, the supercharger does not have a dedicated belt to the crank, it runs on the serpentine belt....

and your point is???? take the belt off, start the engine, its not a big deal.

 

[Rocket Man]

Unfortunately, the supercharger does not have a dedicated belt to the crank, it runs on the serpentine belt....

It's fine to run for a minute or two. Do it when the engine is cool so it doesn't overheat. The alternator, water pump, PS pump, etc aren't needed for a bit.