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Discussion Starter #1
Have any S2 owners had any experience of fitting an electric pump rather than use the fitted mechanical pump?
If so has there been a noticeable improvement in starting?
If this has been found to be beneficial can you advise on the following:
1. What make of pump did you fit?
2. Where in the engine bay did you fit it and what pipework was needed?
3. Did you need to fit any other item to assist the supply of fuel to the weber carbs?
4. Were there any unforeseen problems encountered?
5. Is this recommended?
Many thanks for reading this and I will appreciate your advice.
Metat014
 

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I was about to do it and then was talked out of it. enough pumping of the gas pedal can draw fuel into the bowls from the filter. anyway, Im sure must make starting after sitting easier.

you need to have a fuel filter with the pressure regulator built in which I imagine you have (glass bowl type). although the pump itself needs to be mounted below the tank, near the rear axle, where the S4 spiders have them. electric pumps are better at pushing, so you need gravity to feed the pump.... there is heaps on alfabb about them. everyone uses the "Facet Red Top" pump. assume you need to wire a relay etc. good luck. let us know how you get on. I will probably do it one day, but have more pressing issues with mine....
 

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I fitted the 'Facet cylindrical pump' rated to 150 bhp. I mounted it under the car at the back,vertically, just where the fuel pipe comes through from the boot. The mounting bolts are drilled through into the boot. Its fairly close to the exhaust so I wrapped that with thermal tape for a couple of feet.
It starts and runs well, no need for another regulator and the pump has an internal filter. In truth it only really makes a difference when the car has been standing for a while.
 

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In SA we get two types of pumps, namely the "push" and the "pull" type. I don't think facet makes a pull pump, but a company called Huco does, ask your local spares if they have any "pull" pumps then you can mount it in the engine bay without any troubles.
 

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Discussion Starter #5
Many thanks to mr rhubarb, c80kw and scrgdk for taking the time to reply which is most helpful.
There seems to be a general consensus as to the type of pump and fitting location, the detail about alfabb was also useful so will note this reference.
As with all new delights they take time to get used to and my initial problem was getting the engine to start although I was influenced by the previous owner who thought it might be a good idea to solve this problem especially if the car had not been started for a while.
However, having spoken to my local classic car specialist, charging the battery, changing the plugs and using full choke without touching the accelerator pedal it now starts on the first turn of the key even after a few days of not starting up.
Will monitor the situation and if the problem reappears when very damp and extremely cold shall give this mod active consideration. You have been very helpful, thank you.
 

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alfas have worked fine for decades on the mechanical pump, before the injected cars came out requiring electric pumps!
Keep your old pump, would be my advice.......it worked fine on my 62 sprint for 20+years of ownership in all weathers!......:)
Obviously, as above, make sure pump, points, plugs, leads and sparkplugs are good.......the basics.

....couple of pumps of the throttle to prime the webers and 'maybe' in v. cold climes pull the choke out a bit once she has started, just to help her move off!
 

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Discussion Starter #8
Thanks again to scrgdk and to spiderserie4 your comments are also noted. However, found that pumping the accelerator pedal caused problems so as a result do not touch it at all and now the engine starts at the first turn. Guess all these Italian beauties respond to a variety of touches and it just takes time and patience to find out which brings the best response.
 

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Thanks again to scrgdk and to spiderserie4 your comments are also noted. However, found that pumping the accelerator pedal caused problems so as a result do not touch it at all and now the engine starts at the first turn. Guess all these Italian beauties respond to a variety of touches and it just takes time and patience to find out which brings the best response.
Couldn't have said it better myself!
Funny story, I was struggling to get my 116 to start and it would take AGES to take. Eventually a friend of mine was stuck without a ride for a holiday and needed a car, I offered my GTV and he 1st refused, but in the end he couldn't et another car, not even a rental due to it being December and all. He got in the car, pumped the gas 3 times and she swung and took 1st time :eek: boy did I have egg on my face...
Needless to say said friend took 2 extra days to return the car as he "didn't want to" :cheese: he is currently looking for a 116 or 916 as we speak :cheese:
 

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I have bought a Facet electric pump to fit to my Gt Jnr. My thinking here is that if I don't use her for more than 7 days she is a pig to start and has to turn over for ages before sufficient fuel is pumped through for her to start. And the battery is nearly exhausted by the time she kicks into life. So with an electric fuel pump this will aid my cold starting. As it's a Facet pump it will need to go near the tank and be mounted vertically so it looks like I will be spending some time under the car in the near future.
 

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I'd really urge fitting of a tachymetric relay. A good "failsafe" measure. The ones used often here have a telltale LED on the relay housing so you know when current is getting to the pump. A concealed switch as part of the relay wiring can also serve as additional anti-theft protection.
 

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I'm with Dom on this one - my S2 has a mechanical pump and even after two weeks sitting around in the cold outside (under a cover) will start after three pumps and half throttle, no choke - mines disconnected anyway - it might die first time but will settle after a couple of goes, I have a 123 and everything is spot on so that probably helps, I'd say if your having problems starting then go through the usual checks, these cars are not hard starters by nature
 

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I'm with Dom on this one - my S2 has a mechanical pump and even after two weeks sitting around in the cold outside (under a cover) will start after three pumps and half throttle, no choke - mines disconnected anyway - it might die first time but will settle after a couple of goes, I have a 123 and everything is spot on so that probably helps, I'd say if your having problems starting then go through the usual checks, these cars are not hard starters by nature
I have a 123 and she starts really well when she is used regularly; my Lancia has an aftermarket electric pump fitted and starts on the button no matter how long she is left between journeys. I have fitted a new fuel pump and fuel regulator on the GT and they have made no difference.
 

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Whichever way you go, I wouldn't get too hung up on vertical-ness. I originally put mine right back near the tank and almost vertical but close to the exhaust / rear muffler. It worked well but I then got a cutting out problem in hot weather so I moved the pump to the "standard" location under the rear RH floor, and horizontal.

The cutting out problem tuned out to be a melted fuse holder and nothing to do with heat near the pump. However the subsequent horizontal-ness of the new installation causes no problem and it's well out of the heat, and easier to get to (not that I've needed to)
 

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For those who have retrofitted an electric pump where is the best place to take power from bearing in mind the pump will be towards the rear of the car?
I ran a cable straight from the battery and put an inline fuse on the wire. I do not trust the older cars and their wiring for the "new school" pumps power requirements.
 

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but isn't your pump then always live, no matter what?



Elec. pumps should really be wired, so they only operate when you turn the ignition key to 'on'


Apologies let me elaborate.
Two ways of hooking it up.
1) straight from battery with an inline fuse and switch (yes I did forget to add that)
2) corrected via relay power coming from battery signal coming from ignition barrel.
In all the cars I've fitted it I've used option one mostly. It also serves as a theft deterrent if the switch is well hidden. My gtv had it under the steering wheel


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I mounted a relay in the boot, switch under the dash, relay powered from battery. It's useful to be able to have the ignition on, engine off, but the pump not running
 
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