Re: Oil pressure at idle

Posted by Jim/KB1MCV On 2019/8/4 10:56:38

Exactly on machining the head.
With new head gaskets in the sixty thousandth of an inch thick range, theres a lot of room for some slight distortion.
I do think in period service machining a straight eight head was probably sold many times as an extra-profit item, thus there seems to be quite a lot of heads over machined.

In regards to the idling oil pressure, I'm sure the noted five psi is fine, but if it were my engine I would change the oil (if not done recently) and temporarily plumb in a known accurate gauge, maybe 0 to 60 psi range to verify the accuracy of the OEM gauge. If it is OEM circa 1934, it won't do any harm to check it.