try to restart it?

[garbageguy]

The GM 350 style long-block that we put in as a re-power has running well for almost 10 years. Last week it shut-down after being fueled-up, run on plane, then running just above idle. It re-started after a few minutes, but I headed back towards down-river, and to the slip. Was running OK again just above idle, and on-plane. Then she shut down again when under-way just above idle. Engine temperature was now climbing and oil pressure lower than usual. Ended-up intermittently drifting down-river and slowly under way to get into slip (phew!). But the engine was cookin-hot and it took two ignition-switch turn-offs to shut down the engine. I covered her up, and left. I have a suspected diagnosis based on that, but wonder what the people here think happened to the engine. More importantly, I gotta go down to boat today, should I try to re-start it, or give it up to the marina service dept? Due to aging/health reasons, no trailer or shop anymore, I'm kinda done doing much to it myself. All experienced-thoughts appreciated.

 

[Scott Danforth]

You should fix the cooling system issue before you try to run it

 

[garbageguy]

So, don't even try to start it briefly in the slip now? I suspect the oil pump gave it up while out, or almost did, generating high engine temps. Does an oil pump operate in an all-or-nothing fashion?

 

[Bondo]

So, don't even try to start it briefly in the slip now? I suspect the oil pump gave it up while out, or almost did, generating high engine temps. Does an oil pump operate in an all-or-nothing fashion?

Ayuh,..... Do the impeller pump 1st,.....

If the oil pump puked, it would seize up before it overheated,....