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Old 23-12-2017, 19:05   #16
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Re: Primer bulb to bleed Yanmar 2GM20F

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Originally Posted by Wotname View Post
I fitted one to my 2GM20 but put it between the fuel tank and the Racor. It works well but I suggest you buy the best quality bulb as some of them don't like diesel and rupture - making things way worse...


Exactly what i have been using for 32 years. Simple and easy to replace if needed.
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Old 25-12-2017, 15:05   #17
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Re: Primer bulb to bleed Yanmar 2GM20F

Take electric fuel lift pump one step further-install a diverted valve, switch and a Racor 500 filter & return fuel to tank and you not only have an easy way to prime your injector pump but also have a great fuel polisher! Works great and inexpensive!
Ps- make sure all hoses, other parts are US Coast Guard approved for insurance reasons.
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Old 25-12-2017, 15:08   #18
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Re: Primer bulb to bleed Yanmar 2GM20F

Primer bulbs work fine. Put it between the tank and filters. I did have one go soft/spongy once. Not sure why that particular one did. Another option is an automotive electric fuel pump with a switch. I think NAPA has them for... $25?
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Old 25-12-2017, 16:24   #19
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Re: Primer bulb to bleed Yanmar 2GM20F

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Turning the engine a little bit allows the cam to rotate to a position where it is no longer engaging the internal lever thus allows the external (hand) lever to do it's thing.
Ah yes, of course. Why didn't I think of that when fiddling with the little lever that appeared to do nothing.
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Old 25-12-2017, 18:43   #20
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Re: Primer bulb to bleed Yanmar 2GM20F

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Ah yes, of course. Why didn't I think of that when fiddling with the little lever that appeared to do nothing.

Pretty sure we have all been there, but only once...
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