Posted by David G on July 12, 2016 at 20:05:22 from (63.152.110.241):
I started thinking about the boat tonight, think it is an oil pressure shutdown.
The boat has a sender, which goes to the computer, and a switch which goes to an external shutdown module. I went out tonight and cranked it over. The engine fired right off, but killed about a second after that. The gauge is can bus, I did not see any pressure show up on that. I do not know if it is just too much delay or if there is no oil pressure.
The engine is a 5 liter (305) chevy with around 100 hours on it, I could not believe that the engine would really not have a complete oil pressure failure instantly. It has port injection, but a distributor, so would assume the oil pump drive is below that.
My first thought is to jumper out the switch and see if I can get pressure within a couple of seconds on the gauge.
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