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BFG 07-09-2012 09:50 PM

Does anyone know a good diesel mechanic?
We have a CS 30 with a Volvo 2002 in it. It will start, it will run but it won't idle. The filters and raycor water/fuel separator have been replaced. It doesn't appears though the fuel is bad or it would probably sputter and cough all the time. It runs well at high revs but as soon as you back it off to idle it will struggle and stall. The fuel system has been bled. :confused:

It is in Bronte (Southwestern Lake Ontario). Not sure whether to hire a mechanic or a U Boat.

Open to suggestion....


erps 07-09-2012 10:08 PM

Re: Does anyone know a good diesel mechanic?
Is this a new development? I would suspect an injector is acting up. I would get it running, then slow the motor down as much as possible so it keeps running then I would crack injector lines at the injector which should cause a noticeable drop in RPM and increased roughness. If it doesn't, you've at least narrowed the problem down to one cylinder. I suspect it runs rough at higher speed too, but the higher RPM just makes it harder to tell. That's my first guess with the limited info.

BFG 07-12-2012 04:35 PM

Re: Does anyone know a good diesel mechanic?
Thanks for the response. I think it is sucking in air from somewhere. If you bleed the air out it runs fine. Two days later you need to bleed it again. I'll see if I can trace the leak.

BFG 08-26-2012 11:37 AM

Re: Does anyone know a good diesel mechanic?
Solution...refit the fuel system. Relatively inexpensive got parts sent to us from Marine Express. Fuel pump, fuel lines, fittings. Runs like a top. When in doubt fix it all.

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