Has anyone run into the problem where supercharger oil is getting past the snout into the rotors and into the intake? I just pulled my supercharger off working on another problem and I was greeted with the most horrid smell. It coated the supercharger rotors and it coated the lower intake manifold. It was even in between the gasket and surface mating areas. The mating surfaces were wet and very smelly. Is it possible for a diy'er without a whole lot of tools to repair the seal inside the snout so that this doesn't happen?

On a side note, the TB coolant passages were almost completely blocked off with brown gunk, do I have dexcool to thank for that?

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Oh yes, supercharger oil stinks! Something like indian food wrapped in a dirty diaper. No, you can not replace these seals. They are not servicable. Someone might chime in and tell you that you can....but you can't. Your best bet would be to get a used supercharger and bolt it on.

I was told that this engine has 70k miles on it from the salvage yard but with this and the fact that 3 intake valves were bad from the salvage yard, I'm kind of curious as to what life this engine enjoyed before being placed into my lap! Can I buy a rebuilt snout from zzp or should I buy the whole supercharger?

I have two pics that I have some questions on:

First pic is of the s/c rotors, note how wet the inside is underneath the top rotor. Also, it appears to have remnants of dexcool. Is there anything I should do or be worried about? I've had this engine connected to the fiero's cooling system for a good 500 miles and ~5-10 hours of running to troubleshoot.


Second pic is of LIM.
1: oil- is this normal from the pcv?
2: I ran my finger across the bottom of the intake manifold, left a print - the bottom was wet to the touch
3: This bolt smelled absolutely horrid. Is s/c oil allowed to get onto this bolt? The threads were covered in s/c oil.

[This message has been edited by JamesCurtis (edited 08-14-2011).]

this may not be Sc oil rather PCV oil and gasses, the pcv allows for crank case ventelation through the Sc then reburned,not such a good thing but i blocked the PCV privisions through my intercooler so no more oil on roters,gasgets ect
not saying it cant be SC oil but your SC and LIM look normal if you could smell SC oil then it most likley was

A sniff inside the supercharger smelled a lot like the smell that came from #3 in the 2nd picture. That's why I linked it to supercharger oil. This all hinges around item #3 in the 2nd picture smelling like supercharger oil because everything else in the intake smelled exactly like it.

A rebuilt snout will not fix the oil leak. The leak comes from the seals in the rotor pack, and these seals are not servicable. To get to them, you would need to press the gears off of the rotors and the rotors out of the plate. This is possible, but they need to be timed perfectly when pressing them back together. You would need a very expensive and complex jig to press everything back together and keep the parts in time. I have heard of many people trying, but not a single one that was successful. I have pressed one apart before, but just to scrap it for aluminum. Once you press one apart, it becomes very evident that you will not get it back together with the rotors and gears timed right.

As for the coolant ports, that's dexcool baby! Clean everything up and switch to green coolant. The oil on and around the bolts is just from the supercharger leak.

Is it possible you have too much SC oin in the case? You can run as little as 1 bottle in that thing.

Looks like it could use some new lower intake manifold gaskets too (looks like you have leaky plastic ones now). Now's the time to do it. Get the upgraded aluminum frame gaskets from the dealer, or fel-pro makes a metal frame gasket too for a bit cheaper. You can get the fel-pro gaskets at most part stores.

I was originally tearing the engine down to repair low compression on 3 cylinders that's leaking out the intake valve. I'll be replacing the LIM gasket with the aluminum one when I get to that. For now I just want to pop the heads off to see what the condition of the cylinders is. I'll check the level of the S/C oil and see where it's at. If it's leaking I imagine it should be pretty low.

Well I'm thinking that it's a leak after I checked the level tonight. There was a little under 1/2" of the bottom of the probe that I stuck into the fill hole which means there was ~1/4" of oil at the bottom of the snout. I would assume that if it was overfilled and leaked out that it wouldn't leak all the way down to that level. Would this just be a faulty seal from the factory or is this a sign that the engine has more than 70k miles on it?

Hard to say, but before you buy any parts you should pull the heads and have a look at the piston tops, cylinder walls and valves. It seems like if it really is 70k, it was a hard 70k.

It'll be interesting to see what I find since I have ~100psi compression on cylinders 3, 4, and 6 with 80% leakage out the intake tract.