hello

i have an older whipple supercharger for a 5.7 ltr vortec engine it mounts vertically on the drivers side my problem is that i sent it away to PSE superchargers to be rebuilt and when they sent it back they had put a new 10mm bolt in the center of the pulley that came with a hole in it for what they said was for gassing purposes of course when i put oil in the supercharger it started leaking from that hole and on to the belt. Ed at PSE said that they had put the wrong bolt in it, and it needed to be a solid bolt "no hole" my problem is that now there sending me the correct bolt but i can't get the old one out of the unit we were able to turn it about 3 times but it is not backing out. we even went as far as to put an old pulley on and hold it firmly with a pipe wrench but still it's not backing out can anyone give me any ideas?


please dis regard i put this in the wrong section. i reposted it into whipple tech section.

Very strong name bbrand impact is what will do the job. I hold minre with mechanics gloves or old chamois and it comes out pretty easily with an impact.

I wouldn't use an impact on a Whipple or any other compressor drive, personally.
It's not coming out because it's spinning the rotors.
If you've got an old serpentine belt, cut it and fish one end of it into the throttle body through the elbow and into the supercharger inlet to prevent the rotors from turning. Make sure it's clean first. I've always would the safest thing to use to be the plastic handle of a screw driver or a hardwood dowel but you won't be able to get one of those in there past the elbow.

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"James B." '99LT_Tahoe4Dr2WD, Tuned L29 Vortec 454, 62#Injectors, Cutouts, 4L80-E 10.5"14bolt ,EatonPosi-4.56:1, Gear_Vendors, HydroBoost, (NEXT: Brodix heads, 230/240 cam, SS roller rockers, longtubes, THEN: Intercooled W200R-8psi in the future...)