I've found that on SS Headers if you don't purge the air sometimes you can't find the tiny leaks.

I usually purge the air then hit it with the torch for a few seconds to expand the metal. If it wasn't leaking before the heat, that usually does it. If there was an air pocket in the header I wouldn't be able to see the leak until all the air is purged out.

All good info. Thanks a million.

I never imagined it could be reversion since I run a stock Merc cam and an extra 3" high on my exhaust risers. I idle at about 800 rpm but how else would water get in other than reversion or a manifold leak?

I am picking up new intake gaskets today (Fel Pro 1275's) and am going to try "Right Stuff" or "Permatex Copper" sealer for around the water ports.

The Whipple intake manifold does not use 4 of the original intake bolt locations. Should I plug these just in case they sink into the water jacket of the head? Should I coat all of the intake bolts with something for the same reason?

Before the whole thing goes back together, I definately need to pressure test my exhaust manifolds. All I need is some good cork gasket and a plate of aluminum to block off the top of the manifold. I already rigged up something to adapt the bottom inlet to a 3/4" garden hose.

I really want to find a "smoking gun" on this one.

formula31 -

Turns out that the earlier post you quoted was originally mine....back when I thought I had solved the milkshake problem. No such luck I guess.

Is Gill the same bolt pattern? If so I already have one made & will load it out to you.

Yes, I know. I posted it to remind others that was some history here and you had done somethings already.

Please do the intake geometry test before you put it on. And yes, the intake bolts should be coated with a sealer, aviation or something like that.

Im not familiar with blower apps so I might be wrong here but I swear Ive heard that reversion is not an issue with blowers. Not sure if that applys to your whipple and it probably doesnt apply to a procharger. its a good question though, you should call whipple and ask.

If reversion is the cause, cam timing would be the thing to check.

BT

Thanks cig. A buddy of mine made me up one this afternoon. Appreciate the offer.

Any time G. If you come up with nothing let me know. I'll send you the pressure adaptor that I was talking about.

Any updates?

I never imagined it could be reversion since I run a stock Merc cam and an extra 3" high on my exhaust risers. I idle at about 800 rpm but how else would water get in other than reversion or a manifold leak?


A broken exhaust valve spring will cause this situation.