Reply to "Engine breather - probably not what you think.."

panteradougMember

The M.E.Wagner is a useful tool to those who are also wrestling with camshafts that produce low idle vacuum. Anything below 10 or 11 inches is not going to help with the piston ring sealing. It will be detrimental to it.

That is what you NEED minimally to seal the compression rings.

With low idle vacuum, there the cylinders are going to show evidence of "cylinder washing" and that alone will add to spark plug fouling.

You shouldn't go below the 10" level. The higher, the better.

3/13/257:24 AM

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