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Join Date: Aug 2009
Location: Richmond, Virginia
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Re: Westerbeke 30 won't start after sitting
My best guesses:
Have you checked your oil? Is there a smell of diesel fuel in the oil? (Could be the cause of the dripping oil - it has been thinned by fuel). Might be a leaking diaphragm in the fuel pump, if you have that type of pump. My engine has to be on half throttle or higher to start, so you might have a fuel deficiency at start up. Might be bad fuel. Might be leak at secondary fuel filter - it is challenging to properly re-assemble those suckers, after changing the filter. Mine has 4 different o-rings, one each at top and bottom of filter, on on the center pipe and one on the bleed screw, and I have to hold it just right to reinstall it. After a filter change, I wipe off the filter carefully so it is dry, start the engine, then run my hand around the secondary fuel filter to make sure there are no leaks.
It is cranking, so we know it is not a battery, electrical connection, solenoid or starter issue.
The test for a low pressure fuel system problem is to unscrew the bleed screw from the secondary fuel filter and turn the engine over using the starter.* Does airless fuel spurt out of the secondary fuel filter? (*from recommended diagnostic manual below.)
Farther down the line, you could check that fuel is reaching the injectors by loosening the injector supply lines, again turn over the engine using the starter, and check for fuel spurting out of the injector supply line*.(*from recommended diagnostic manual below.)
A step farther down the line, you can check the injectors by disconnecting the return line, removing the injectors, and checking the spray pattern from the injectors*.(*from recommended diagnostic manual below.)
You might also check the glow plugs to make sure they are properly heating up - that might explain why you have greater problems starting in colder weather, but it starts o.k. in the summer.
Are you sure your engine is not self-bleeding?
I suggest you buy a good diagnostic manual and run through each step for a cold start up problem. I recommend *Peter Compton's "Troubleshooting Marine Diesels". No one can accurately diagnose your starting problem from a distance. You must work through each system step by step through the process of elimination to locate the problem to be repaired.
Last edited by jameswilson29; 05-23-2014 at 08:26 AM.