Perkins problem

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Jeff Barnes

Perkins problem

Post by Jeff Barnes »

After idling for about 10 minutes (at the dock, fortunately), the Perkins 4.108 in my CD-36 died. Assuming air had found its way in, I proceeded with the bleeding ritual. After obtaining air-free fuel flow (while cranking the engine) from the low pressure bleed point on the CAV injector pump, I proceeded to crack a fitting on the #2 injector. No fuel, not even fuel with bubbbles. I then removed the fitting all together an observed no fuel flowing from the open end of the pipe. Again not even fuel with bubbles.

My question is: Could there still be air in the CAV pump sufficient to prevent any fuel flow at the injectors, OR has my CAV pump developed a prostate problem, and thus requires a re-build?

Thanks, in advance for any suggestions.

Regards,

Jeff



jbarnes@oxbio.com
matt cawthorne

Re: Perkins problem

Post by matt cawthorne »

Jeff,
There is a second bleed point on the injection pump. On the upper side of the pump is a stack that looks like a bolt with two nuts around its base screwed into the housing. The good news is that this may just need to be blead. The bad news is that two of the three control important settings for the injection pump. Move the wrong one and you may be in for a service call. The manuals are down on my boat and I can't remember which is the correct one to bleed. Perhaps another 36 owner can help here.

Matt





mcawthor@bellatlantic.net
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