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Old 01-04-2021, 17:07   #1
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Join Date: Jan 2013
Location: Mason, NH
Boat: 1984 Hunter 27
Posts: 114
Westerbeke 12b2

Just a question out of curiosity. While changing the fuel filters getting ready for the spring launch, I was wondering what is the purpose of the magnet in the bottom of the Fuel pump/filter. Shown here in the pic, It's the small round magnet in the center of the sealing gasket of the bottom cover
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Old 01-04-2021, 17:28   #2
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Join Date: Sep 2014
Location: Auckland, NZ
Boat: Compass 790 , 7.9 metres or 26 ft
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Re: Westerbeke 12b2

Its to grab any iron particles & stop them from going in your engines injection pump basically AFAIK.
Not familiar with Westerbeke 12b2 to be fair.

A good idea frankly IMO.
I add neodymium magnets to my drain plugs & filters on any fuel or oil system despite the fact the filters should catch the iron particles anyway.
They do hold some particles on sump plugs IME. I've never cut open the oil filters to check, just shift magnets to new filter .
Dont know if it makes any difference to engine life but I hope so & it makes me feel better
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