AdamR
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| posted on 13/11/07 at 10:40 PM |
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EFI fuel pump - evaporative loss or not?
I'm trying to chose between two Land Rover in-tank pump/sender units. The description for the cheaper one says "not for evap loss".
Any ideas what practical difference that makes?
FYI the models are PRC9409 and
ESR3926.
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DEAN C.
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| posted on 13/11/07 at 10:53 PM |
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Hi,
I cant see apart from how it fits into the tank how an evaporative loss type makes a difference to the working of the pump.
I thought the fume loss system was a seperate system that just allows fumes from the tank to vent into a carbon cannister,later to be vented into the
induction manifold to burn off,rather than vent to atmosphere.
I might be wrong here but I would guess that the tank is just a different design so either pump will do the same job.
Once I've finished a project why do I start another?
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RazMan
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| posted on 13/11/07 at 11:00 PM |
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I've got the V8 version which is cheaper too. It works fine for me but I havent a clue about the evaporation thing.
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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AdamR
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| posted on 14/11/07 at 07:35 AM |
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Dean, I think you must be right - I can't see how the pump would be different for an evaporative system.
Raz, these are the two models of V8 pump. Do you know which one you have? Also, how did you fit it? From looking at the pics, neither seems to have
the usual mounting flange with bolt holes. In the original installation a plastic locking ring mates with the tank.
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RazMan
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| posted on 14/11/07 at 08:30 AM |
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Not sure which model I have but it just has a feed and return like any other that I have seen and the pump gives over 3 bar of pressure - easily copes
with my V6's needs.
You will have to make a circular locking ring (Aerocap stylee) to clamp it down to six tapped holes in the top of the fuel tank with a gasket which
comes with the pump - quite straight forward though.
The best thing about the pump assembly is that it adjusts to the height of your tank (between 250-300mm iirc) but it is probably a good idea to make a
small sump so that the pickup gets every last drop.
[Edited on 14-11-07 by RazMan]
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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