Hey guys,

I'm looking at buying a used blower but I've never seen a gen 3 M62 appart before, so I don't know what to look for (coating on the rotors, etc..). The rotors on this one don't look much different than on my 93, which isn't supposed to be epoxy coated. Here is a pic:


Is it possible this blower is suffering from "coating loss" or is this how they look?[/img]

Looks pretty scored to me...
Mine is solid black rotors, I don't know for sure, but that looks like some good scoring on the rotors.

The black on your rotors is the carbon bulid up; these rotors have been cleaned off. I myself havn't seen many rotors without the carbon on them. Even though I have a few extra */Cs around here. But in my not to expert opinion they look pretty good to me.

Ed

I wasn't sure, I figured it was the coating, but I was also told it was a good thing.

It is the extra carbon on the rotors helps to create a tighter seal between the rotors. Thus moving the air more efficiently. But we'll wait for a 2nd more seasoned opinion on the condition of these rotors.

absolutley correct carbon build up helps in that area but other areas not so much

Thanks for the clarification. Sorry for the hijacking...

Hi..

That set of rotors looks nice and clean. I am not a fan of clean rotors. The carbon buildup helps to seal the edges and creates more compression. Cleaning the rotors.. how was it done, did the bearings at the front of that assembly get cleaned as well? If the bearings were soaked and lost all their grease or lubricant..will they go bad soon?

While I haven't seen them in person or know the seller, these are a few questions I would be thinking/asking. Otherwise..the marking on them is the normal machining that you would expect to see

That is the wrong supercharger for your car. You need a Gen2 M62, not a Gen3.

You're inviting many headaches and nightmares trying to get that to work. I suggest you do ALL the other mods first, and save the idea of a Gen3 swap for last.

What sort of headaches do you mean? Please excuse my ignorance; I have no experience with the Series 1. Everything looks the same as far as fitment goes, but I could be totally wrong. Do you mean problems tuning it with the different MAF? I've used an AFC before and don't mind the time it takes getting fuel trims right with one.

Do you think it matters the seller cleaned the rotors? I was going to change bearings and the coupler just to be safe.