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post #7 of Old 11-26-2013
Maine Sail
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Re: CS36T Fuel filter Westerbeke 44B

Originally Posted by Nias View Post
Thanks for your help guys, makes me more confident that I'm not missing something stupid that I was supposed to turn off, drain or adjust prior to changing the fuel filters. The manual only states turning off the fuel send. Tank was only 1/4 full, so it's a bit puzzling, but it sounds like the fuel must somehow be siphoning from the return.

Maine Sail, great idea to install a shut off valve on the return. I plan to change the filter frequently and I don't want to go through that mess again. And a pair of hose pinch pliers to have on board is also a good idea. As far as burning out the glow plugs, will this happen pretty quickly if I don't do what you suggest? Doesn't sound too hard but is a little beyond my level of understanding as to how and why to do this. So just jump the positive on the fuel pump to the positive on the solenoid? How do I know when it's bled?
The glow plugs on these engines are rated for 10-14 seconds and this is figuring a single small starting battery. If using a large house bank they could be at 800C / 1470F in less than 10 seconds. Press too long and you cook them, a very common problem......

Unplug the fuel pump pos (usually blue wires) and insert an alligator jumper lead into the friction fit terminal. Now connect that jumper to the live side of the solenoid and wait until the tone of the clicking fuel pump changes and becomes consistent.. Done......

While glow plugs are cheap and easy to change out best to just not blow them...... I just recently blew all four of mine with a LiFePO4 battery bank by not shortening the glow time from 10 seconds to about 3-4 seconds.... The Li bank ate them for lunch even at just a 10 second push because the voltage does not sag on Li like it does on lead acid.......

-Maine Sail / CS-36T

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