Thread: Double SC gaskets, no gaskets, gaskets and RTV, what do?!? (Intercooler) Vac Leak

Fired this pig up and it ran fine several times, fired it up again and it has the loudest high pitched whistle I have ever heard. Clearly a vacuum leak around the snout side of the supercharger, confirmed with a dousing of carb cleaner on that side of the blower. rough idle, change with spray. Do I even bother with gaskets if they dont survive the dismantle. Or just squirt a tube of high temp grey or red RTV between all of the upper pieces and call it good? Or get 2 more new gaskets add RTV to them and re-samich them all together? I've properly blocked off the LIM to throttle body coolant passages. No EGR. and I am 99% sure there is no leak between the intercooler plates. the leak seems to be at the supercharger to intercooler plate.

I've seen a vac leak before around the snout side water tube before, and a pile of RTV fixed it. I hate to resort to the RTV all over everything method to fix the vac leak but it seems like that's the only option at this point. Is a vacuum leak at the intercooler a common thing?

I'm tearing it all apart again in like 7 hours. I hope I get at least a few opinions in this short time frame.

I have no experience on this matter, but I have read that sseilop recommends using only grey permatex when installing an intercooler.

I no u have a vac leak as your saying. But u might have blocked off the pcv passage too. Take off the oil cap and see if it goes away. Just saying. But I mean that noise can come from that too

Originally Posted by johntremell

I have no experience on this matter, but I have read that sseilop recommends using only grey permatex when installing an intercooler.

same stuff I used when I sealed mine and it was good but it might take a couple tries to get it right.. op you hav any e85 stations f**k sealing and run corn lol

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