Priming fuel on Yanmar 4JH4AE

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Ken Rait

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Jun 10, 2023, 10:40:34 AM6/10/23
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About to change fuel filters on my 2010 B40. I cannot find the small priming pump to bleed air out of the system that shows in the engine manual and understand these engines may be self-priming. Anyone have experience with this?  Engine is 54HP Yanmar 4JH4AE. 

Mohammad Bayegan

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Jun 10, 2023, 11:08:14 AM6/10/23
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The bottom of the filter housing there is a button that is spring loaded. Push it several times to prime.
Marengo B49

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Subject: {Beneteau Owners} Priming fuel on Yanmar 4JH4AE
 
About to change fuel filters on my 2010 B40. I cannot find the small priming pump to bleed air out of the system that shows in the engine manual and understand these engines may be self-priming. Anyone have experience with this?  Engine is 54HP Yanmar 4JH4AE. 

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Ken Rait

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Jun 10, 2023, 11:12:11 AM6/10/23
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This housing?


Mohammad Bayegan

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Jun 10, 2023, 11:14:18 AM6/10/23
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Yes, that is where mine is.

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Subject: Re: {Beneteau Owners} Priming fuel on Yanmar 4JH4AE
 

Mohammad Bayegan

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Jun 10, 2023, 11:15:31 AM6/10/23
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From your picture looks like yours is on top.

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MagicaTi

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Jun 11, 2023, 3:14:16 AM6/11/23
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In my yanmar 4jh4e the priming lever is at the lower strarboard side of the engine, at the c- pump, close to starter engine.
IMHO virtually useless if you really happened to emty the fuel circuit. I solved by putting a 30micron fuel filter WITH PRIMING PUMP just out of the fuel tank.

Ralph Wasserbaech

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Jun 11, 2023, 2:38:21 PM6/11/23
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Attached is a picture from my 2008 B40 with the same engine as yours. Notice the pump on top of the filter. Strange that yours is different. I changed both primary and secondary last year and just filled both new filters with fuel before starting. I don't recall even having to use the pump to bleed before starting the motor.
PXL_20211113_181000218.jpg

Ken Rait

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Jun 12, 2023, 11:04:42 AM6/12/23
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Agreed. Strange it’s different. Yours is like the manual.

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Mark J Wilme

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Jun 12, 2023, 11:37:17 AM6/12/23
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one thing I have realized with these Beneteaus is that no two seem to be built exactly the same

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Mohammad Bayegan

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Jun 12, 2023, 12:18:46 PM6/12/23
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You are right, that is why anytime I have had any dealing with Beneteau they want to know the Hull number. 
Marengo B49 

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