ghostlymoron
Well-Known Member
I would have thought that a small inline filter would be very liable to blockage as it hasn't got much surface area.I'd have thought a fairly coarse conventional filter would be miles better.
Fitting an electric fuel pump
- Thread starter pcatterall
- Start date
rob2
Well-Known Member
A mate of mine bought a boat fitted with a petrol engine. After a couple of nervous seasons using it he got hold of a Yanmar industrial engine and had it marinised. At the time we had a new spare fuel pump from a Mini (the real type) which fitted perfectly into the existing space. It performed perfectly. A couple of years after he sold the boat the new owner invited me to step aboard and help with a starting problem. Switching on the ignition, there was no reassuring click from the pump so I asked where he kept the hammer handle which had always hung on a lanyard beside the engine. He dug it out from a locker and I clouted the pump which sprung to life and the engine started first kick. Some things never change and I guess he'd never owned a mini...
The same hammer handle also sorts out a stuck starter, so it meets the criteria that everything on board should have at least two functions. For those who have never owned a Mini, the pump sometimes stuck at the point where the assembly flips over (if that is where it ws when the engine stopped) and a sharp tap would be enough to flick it over. As the pump responds to maintain the pressure in the fuel line, it is normal for a couple of clicks to be heard before the engine starts, as the pump reestablishes the pressure.
Rob.
The same hammer handle also sorts out a stuck starter, so it meets the criteria that everything on board should have at least two functions. For those who have never owned a Mini, the pump sometimes stuck at the point where the assembly flips over (if that is where it ws when the engine stopped) and a sharp tap would be enough to flick it over. As the pump responds to maintain the pressure in the fuel line, it is normal for a couple of clicks to be heard before the engine starts, as the pump reestablishes the pressure.
Rob.
pcatterall
Well-Known Member
Thanks guys. Yes it was a simple question but I found a lot of the 'associated' comments interesting and potentially valuable.
Concerning Tammany's question ( above) I guess that part has been answered, we are both converted and we both would like any pointers about the pump to buy.
rogerthebodger
Well-Known Member
I have one of these on each of my 3 tanks that I use to prime each primary filter so are inline with the primary filter and the engine driven lift pump.
http://www.ebay.co.uk/itm/12V-ELECT...hash=item35c8985dab:m:mM6_BwjIIYDkWyzDaNVIAAw
This type of pump works in the same way as a mechanical lift pump except the movement is an oscillating solenoid replacing the cam driven pump arm.
I also have a hand priming bulb on mt diesel generator as the mechanical lift pump had no priming lever.
All works fine.
BTW my secondary filter pair is between the mechanical lift pump and the injector pump inlet.
http://www.ebay.co.uk/itm/12V-ELECT...hash=item35c8985dab:m:mM6_BwjIIYDkWyzDaNVIAAw
This type of pump works in the same way as a mechanical lift pump except the movement is an oscillating solenoid replacing the cam driven pump arm.
I also have a hand priming bulb on mt diesel generator as the mechanical lift pump had no priming lever.
All works fine.
BTW my secondary filter pair is between the mechanical lift pump and the injector pump inlet.
Tammany
Well-Known Member
So this is a through flow filter even if it's switched off??
noelex
Well-Known Member
Yes most electric fuel pumps offer minimal restriction when turned off.
When running they can potentially replace a faulty lift pump, help prime/bleed the system and/or refill a filter after a cartridge replacement.
neil1967
Well-Known Member
I have a Facet pump fitted to my Perkins 4108 that looks identical to the one linked above on ebay. You can get various different Facet pumps that look the same with different flow rates, and as importantly dry prime heights (I think that's the right term). The base of my fuel tank is quite a way below the electric pump so I chose a model with a 36" dry prime height to ensure that it would prime without problems - which it does. I used 'fuel pumps online' - more expensive than ebay, but at least I could check the specs. Fitting the electric pump has made changing the fuel filters and bleeding the engine a doddle compared to how it was before.
Would second that, changing filters so much easier.