Shirehorse
Member
- 168
- 21
- 18
- Location
- Mantua, OH
Both my M816 and EC's XM813 have mechanical oil pressure gauges. They both have the copper line that runs from the gauge all the way to the lower left side of the block. No senders present.The oil pressure gauge is NOT a mechanical but a electric one with a sender, this sender also sends a circuit to the pcb start relay which it opens, preventing starting when the engine is running.
However, one is a 1970 and the other is January of 1971. The other two M809s I've seen have had electronic senders, but they were a few years newer than mine.
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