would like any info for a reliable replacement electic fuel pump for a Yanmar diesel ,came with a bellows type ,5psi pump, which I replaced with same about two years ago and has failed again. looking for something that will be more reliable and not run constantly ,have tried a small cube style, but it runs constantly and become very hot. any suggessions ?
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additional info
thanks, I've seen this pump before , it looks like a vane style pump. I'm just wandering if when it reaches it's rated pressure will it shut off?
thanks, I've seen this pump before , it looks like a vane style pump. I'm just wandering if when it reaches it's rated pressure will it shut off?
These are 'wobble plate diaphragm' pumps
No pressure switch, these are either ON of OFF but will sit there ON when 'deadheaded' without damage, although deadheading a pump puts a strain on the diaphragm. Almost ALL fuel pumps do not cycle with pressure, they stay ON delivering the pressure/flow .... they do 'slip'/stall so that they dont destroy themselves. Just about all non-positive displacement pumps are capable of this 'slip'. A constant displacment pump would be a gear pump or piston pump.
No pressure switch, these are either ON of OFF but will sit there ON when 'deadheaded' without damage, although deadheading a pump puts a strain on the diaphragm. Almost ALL fuel pumps do not cycle with pressure, they stay ON delivering the pressure/flow .... they do 'slip'/stall so that they dont destroy themselves. Just about all non-positive displacement pumps are capable of this 'slip'. A constant displacment pump would be a gear pump or piston pump.
JC,
It's not posiblie to use an electric pump that is intermitant. The Yanmar requires constant positive pressure to run. DO NOT use an electric pump AFTER the mechanical pump has Failed. If the failure is from a diaphram rip. You WILL pump fuel into the crank case and posibly cause a run away engine or thin your oil enough to cause premature bearing failure. Pat McCartin Inland Marine Diesel Buford, Ga imd_ga@hotmail.com
It's not posiblie to use an electric pump that is intermitant. The Yanmar requires constant positive pressure to run. DO NOT use an electric pump AFTER the mechanical pump has Failed. If the failure is from a diaphram rip. You WILL pump fuel into the crank case and posibly cause a run away engine or thin your oil enough to cause premature bearing failure. Pat McCartin Inland Marine Diesel Buford, Ga imd_ga@hotmail.com
walbro pumps
Pat, what do you think about the walbro pumps? looks like the conelec pump we used to use in race cars...
Pat, what do you think about the walbro pumps? looks like the conelec pump we used to use in race cars...
Walbro pumps
I like Walbro, they have a great reputation and have served me well on gas and diesel aplications. Pat McCartin Inland Marine Diesel Buford, GA imd_ga@hotmail.com
I like Walbro, they have a great reputation and have served me well on gas and diesel aplications. Pat McCartin Inland Marine Diesel Buford, GA imd_ga@hotmail.com
10psi...
Is a little much. Consider regulating down to around 3-5psi Pat McCartin Inland Marine Diesel Buford, GA imd_ga@hotmail.com
Is a little much. Consider regulating down to around 3-5psi Pat McCartin Inland Marine Diesel Buford, GA imd_ga@hotmail.com
walbro pumps
Thanks, Pat- They only list 10 psi pumps with the diesel screen-I suppose the gas screen pumps at 5 psi would work-the regular filters would catch anything else.
Thanks, Pat- They only list 10 psi pumps with the diesel screen-I suppose the gas screen pumps at 5 psi would work-the regular filters would catch anything else.
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