So I recently replaced the bearing on my aftermarket 65mm pulley.
Could be coincidence but ever since, I hear a "metal" sound when the Supercharger engages. Could be a chirp but sounds more like a rattle.

At the same time, it just seems like it's a harsher engagement. So I checked the pulley gap. If memory serves me correctly it's supposed to be between 0.25mm-0.35mm.
It's closed at the moment but it's not rubbing on the magnetic plate.

1) What is the correct gap?
2) I never needed a shim before and I cannot find the shims that came with the OEM pulley. What is the thickness and size (diameter) of the OEM shims? I want to have some made just in case. My machine shop will make them for free
3) Is the harsh, jerky engagement a problem? Some people think as long as the backing plate is not rubbing against the magnet,life is good?

Should the measurement be taken when components are hot or cold?

Do you guys take sandpaper to the backing plate to smooth it out?

For some reason I feel like power is gone. But maybe I'm just imagining that.

Thanks for all your tips.

Nick

 

@nickwe21 You should know this by now click the link and scroll down to the SRT6 engine section: Your questions will be answered CLICK

 

pictures of current installed setup? did you damage the pulley when pressing?

 

Oh I looked but I couldn't find it. i finally found the Code3 instructions for the gap but I didn't see anything about harsh engagement or thickness of the shims.

@NeedsWings I did not damage the pulley, fairly sure. At least the springs look fine, backing plate seems to engage properly and the new bearing is all the way in and seems to be seated correctly. Everything seems fine. I think this one has to do with the right gap, but my shims are bent from bad storage (the OEM shims) and so I was trying to find out what the original size (diameter/length) as well as thickness is to have new ones made.

 

I'll send you some that we had made, your the same Nick W that I emailed earlier today about a Pulley Saver Kit right? If so, I should have your address.

 

Thanks so much, Rob. We talked about the Oil Catch Can and the Split Cooling Kit among other things. I can paypal you. Tried to send you an private message but says your inbox is full. Just let me know. Really appreciate your help!