Engine stalls. Lumpy seas. Restarts and runs at idle. Increase throttle there is a slight increase in rpm then engine bangs hard a couple time as if pre ignition then stalls. It restarts same result. Then the third of fourth restart it begins to run ok then maybe 30 mins later stalls. Same drill gets it back again. Highly annoying close to lee shore. Help needed soon I can’t afford Kennebunkport marina!!
Yanmar 3gm stall in lumpy seas can restart
- Thread starter rpeebles
- Start date
Ah the challenge of a sailboat needing an auxiliary. Skippers need to know as much about the diesel auxiliary as they do sailing.
Fortunately Diesel engines have simple needs.
Your problem may be #3. Check your fuel lines, the fuel filters, a possible clogged fuel screen in the tank pick up.
Fortunately Diesel engines have simple needs.
- Air
- Compression
- clean fuel
Your problem may be #3. Check your fuel lines, the fuel filters, a possible clogged fuel screen in the tank pick up.
I had the same problem. It is called fuel starvation due to mostly clogged primary fuel filter. The restriction was actually in the mounting bracket. Visit Sail La Vie | 1999 Catalina 36 MK II to read more and see the related images.
Look also for loose wiring on your fuel pump, such as a loose ground connection. Got me once in the middle of a narrow channel. Fortunately I diagnosed quickly and got out the screwdriver. Later re-did everything so it would not happen again.
+1 for fuel starvation due to clogging. Since it restarts I would be suspicious that the clogs are occurring at some kind of pre-screen on the fuel pick-up in the tank. Check your fuel filters. If you have an inspection port on your fuel tank look in to see if it looks cruddy.
Me, too:
Fuel Starvation and The Obscure Ball Check Valve
On September 20, 2019, I was motoring back from a few enjoyable nights at my favorite local anchorage when I experienced a fuel starvation issue for the first time in my boat. We have sailed Aquavite since 1998. The engine simply sputtered and died, would restart after a few minutes and die...
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