Thread: Supercharger oil change gone bad...

Looks like water got in it to me. People have run these cars for 150k+ miles without even touching the SC oil.

This is what happens when you run half supercharger fluid, motor oil and water. And I mean this literally I have seen this in the superchargers with the vented sintered bolt that screws in at the end of the shaft. I am not sure what years they came in. Have fun cleaning it up it is very difficult to get out. scrape most of it and apply WD-40 or a thin oil (PB blaster, Kroil) to help break it up, it still takes a long time. I had 2 like this and ended up putting them back together and filling them with WD-40 and just letting them sit in a drop tray and turned them every few hours when I could.

Jeff

Yeah it's not much fun cleaning it out, almost might be easier to take the whole blower off. I'm hoping it didn't take the bearings out, but i have a feeling the rattle was coming from the rotor pack and not the coupler. I'll try the wd40 next, thanks for the tip.

You can try to move the gears up, down left and right to see if they have any slack. That will tell you if it's bearings. The gear mesh should be very tight with almost no appreciable slack as they hold the timing of the rotors and if they are just the slightest bit loose you will have score marks on the rotors as well.

If the rotor pack is screwed then your pretty much hosed. You will need a new rotor cartridge. I used to buy them from a guy named Ed Morad, who I think was here. I think I paid about $60 each for them.

Jeff

This is the type of supercharger I am talking about. If you leave them pulley down you will have a bad time as SC fluid will drip out of the end. It doesn't make for s pleasant smelling garage.



now these are 2 different supercharger a of different years. Notice the lack of a tapped hole where a small vacuum tree goes. You will also notice that a lot of superchargers have a different snout. I know Ford and Jag threw these away for a while, when the spring coupling failed and the thing rattled at idle, but at sometime I started noticing that the JY superchargers had different colored snouts and solid couplers. Now they all seem to be solid. Not sure when this took place as at the time I was more interested in the Ford M90, but would like to know if anyone had information on that. One of the muddy ones I dealt with the owner told me that he had put oil in it because it was low but didn't drive it often. I took it as a core on a good one I had. The other one I bought off Ebay so I'm not sure the history on it, other than it came from up north. Both had the same style snout.



Jeff

Thanks for the input everyone, going to take the advice of getting a used one. Has to be better than what I have and I won't have to piss around with it.

I'm curious if you had this type of snout?

Jeff

Gen V's don't seem to have any coating on them other than the natural oxide that forms on aluminum.

Jeff

Jeff, I'll take a look when I get home and let you know.

Hey Jeff I checked that snout out and it is not like the one you pictured. Picked up a used one from the pick n pull, weekend project.

Ok, I was wondering. My theory is that when the engine is hot that the air inside expands and forces out of the filter in the end and when it cools it draws in moist air and over time this can happen. The ford superchargers had no vent and I have never seen this in one of them.

Jeff