Club 80-90 Forums

captain Byrne wrote:

Jeff J wrote:

captain Byrne wrote:For the benefit of others, I fitted one of these Facet pump copies off e-bay to my Chevette & it was a complete waste of money, very noisy & poor performance.

But it was a cheapo copy. Did you try a genuine Facet?

No I just continued using the original mechanical one, I wanted an electric pump because the battery gets drained pumping fuel after it has been stood for a few months.

If you wire pump from coil or alternator. it pays to add a manual overide switch. This helps no end if you ever run out of fuel. It also makes sure the line is primed before you even attempt to start it. A 'push-to-make type switch is ideal.

Call me blond but it starts pumping when I turn on the ignition. Just have to wait for a few seconds before I start it. What more would the switch do?


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If the pump is wired from alternator output then the pump stops if the engine cuts out, this is a safety feature, for example if a fuel line comes off, although the engine and hence pump will run until the carb is dry.

Saying that, the Facet interuptor pump on my kit car is switched from the ignition.

Ok cool. Thanks


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I can see no real advantage in changing to an electric pump, apart from being easier to swap fuels (LPG to petrol) while stationary. As this isn't something you're likely to do often, I'd stick with the original mechanical pump, as it works very well.

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ajsimmo wrote:I can see no real advantage in changing to an electric pump, apart from being easier to swap fuels (LPG to petrol) while stationary. As this isn't something you're likely to do often, I'd stick with the original mechanical pump, as it works very well.

After being stood for a few days fuel tends to drain back into the tank. It can take some time when starting up to get the fuel back up to the carb. An electric pump delivers the fuel back to the carb in no time at all, preventing an unnecessary period of fruitless cranking.

marlinowner wrote:If the pump is wired from alternator output then the pump stops if the engine cuts out, this is a safety feature, for example if a fuel line comes off, although the engine and hence pump will run until the carb is dry.

Saying that, the Facet interuptor pump on my kit car is switched from the ignition.

Surely the alternator output cable is always live anyway as it goes directly to the battery? I can't see how it switches off - unless your alternators have some strange wiring system.

Jeff J wrote:

For the benefit of others, I fitted one of these Facet pump copies off e-bay to my Chevette & it was a complete waste of money, very noisy & poor performance.[/quote]
i have had one of the £12 ebay ones on my 2.1carb'd van for the last 5 years, no problems, yes its not silent, but a little rubber tween it and the chassis solved that .... far far more reliable than the crap replacement mechanical pumps that are availible

Should have said alternator B+ terminal with blue wire to warning light...

Output? Input? Neither? Both?

Surely the alternator output cable is always live anyway as it goes directly to the battery? I can't see how it switches off - unless your alternators have some strange wiring system.[/quote]

I don't know but it turns off with the key??


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No, 'exciter' blue wire provides power to pump (if you go that route). It works, but if you've got a lazy alternator its important to give a short rev to put ignition light out or your pump won't be running and by the time you've gone a few yards, you'll run out of petrol. I know, because I've been there

For a while I fitted a manual overide push-to-make switch to reprime the line but it now runs off ignition. The right way is to fit an electric pump relay but its a low-load circuit and I don't like fitting relays with a potential for corroded or loose connections if I don't have to. Less to go wrong.

Hello,

I am after some advice please.

I have a DG engine and exactly the same problem and decided to fit an electric fuel pump
I have mounted the pump but after looking online and seeing the messages about "better to fit a cut off relay", I decided to get one.

I have the relay and just mounted it in the engine bay next to the coil.

My question is... where is the best place to get the live? It needs to be switched to the ignition. I have searched around but cannot see any recommendations. Previously on this thread the alternator is mentioned, is this the best option and if so, which wire?

Thanks

Bruce

PS. I have a 1984 Devon Moonraker 1.9 DG

Deleted. Answered old post.

There ARE advantages to being able to hear pump sometimes. Once had mine get VERY loud after teetering below the reserve mark and promptly ran out of petrol after 200 yards. So, if pump ever get noisy, look immediately for a safe place to pull off the road as you're about to run out of fuel.

Also, when you fill up the tank again it will NOT start until you disconnect pipe from inlet of pump, pull pipe down until fuel drips freely then quickly reconnect so pump will have something to work from. If you don't do that, you could fill right up and still not have any fuel in engine bay. The short length of hose between tank outlet and pump inlet MUST be full for pump to function. If its dry, pump will not pump fuel.

Its still easier to do that than clearing everything out the back, lifting engine hatch, pulling off air cleaner and dribbling fuel into carb.