Reply With QuoteYou didn't mention replacing the water separator filter.
I need some help. I have been trying to fix our ski boat with no luck
ITs a sanger v-drive with the 315 scorpion engine 1997 850hrs
the engine dies after running for a while(approx 10-20min) it runs perfect till this happens. you can feel it start to cough or miss and can definatley
see it in the tach(fluctuates) then the engine flat shuts off.
I thought it was fuel, so I replaced the fuel pump. started and ran fine and went for a test ride. 4800 rpms no problem then same chiot. Tach flutered and shut off.
So this weekend I replaced the distributer module. same thing, this time it ran for 30min then shut off.
note: the engine will refire after sitting for a little while and run perfect, then wamo=dead
I have not put a DDT on it, I will try to aquire one.
any thoughts would be greatly appreciated.
Its the wife's boat and its been down 4 weeks. She already said if it was my boat it would have already been fixed. (she's right but wtf)
Racer :hammerhea
You didn't mention replacing the water separator filter.
floats may be sticking shut. when it dies, have you tried looking to see if fuel is coming through the carb? sounds like a fuel issue.
fuel filter, clogged fuel vent, sediment in gas tank are other possibilities to check
With that engine being EFI you really need to get it on a scan tool to find out whats going on. It could be something really crazy like a sensor. I have the HP-377 Scorpion in my Eliminator and its a killer engine. Mine is 370 horsepower!
ok, had no idea it was EFI. dont i feel stupid now. :cry:
Could it be the coil getting hot?
When it dies cool the coil down with water or ice and see if it restarts.
Yep other than running a scan I am thinking coil. I have seen this happen exactly as you discribe many time. Let us know what you find out. Have you check for spark after it dies?
I had a bad coil and it acted the same way you are describing it.
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