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Originally Posted by ERA Chas

FYI, Ersons oil in the conventional way, not through the p'rods. Any thought about my water- to- rocker- oil feed theory?

I'll pressurize the right and left banks of the engine separately. I'll probably use some R-410A for a reference additive and back it with nitrogen. I'll run my electronic leak detector around. It's sensitive enough to pick up 1/2 an ounce of refrigerant leakage a year. If there's a leak in the rocker oil feed circuit it will pick it up.

Originally Posted by olddog

I like Rick L proposal of putting the intake in a tank of water. Drop the pressure back to 25 psi so your block off plate gaskets do not leak. Then watch for a bubble. Stare at it a good while.

You were keeping a constant pressure from the bottle and I think I read you were using some type of sniffer. Maybe I'm confusing the Freon thing, but I didn't understand your method of looking for the leak. I would think blocking the gas in and watching for the pressure to drop off would be more of a standard test. I guess I'm not certain that your test was absolutely conclusive. Maybe it was and I just lack the understanding.

The entire portion of the manifold that could leak water into the oil is fully visible. I use a purpose manufactured high viscosity soap suds solution with excellent designed cling characteristics to coat all the potential leaking surface areas. It's just as good as submersion and a heck of a lot less messy. watching a bleed-down test really is not as good as a visual inspection of said areas. The bleed-down method is great when all the areas aren't visible, like an assembled engine's entire cooling system. Initially I'll probably use the bleed-down method when I pressurize the halves of the engine. If it shows results I'll start looking for specifics.

Originally Posted by Excaliber

I to have worked in HVAC for many years, chillers to window units, even did a morgue for body storage once. A freeze drier application was interesting, that was some very exotic and expensive gas for that unit! I never worked with ammonia, now THAT stuff is dangerous.

Freon, nitrogen, other gases, just part of the hazard. I am reminded of a news story about a fellow that filled his air mattress with Freon, he never woke up...

Hey Ernie, always great to find a fellow "Freon Sniffer". The HVAC hustle has been good to me in life, allowing for some of the finer (and not so finer) things. I've work some ammonia too, as you said it some nasty stuff.

Actually, my oncologist sort of hinted that my CLL (Chronic Lymphotic Leukemia) is frequently caused by handling and inhaling potentially carcinogenic chemicals and gases.. Go figure.