ditchlewis
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| posted on 28/1/08 at 01:15 PM |
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Mechanical or electrical fuel pump?
I’m running a 2.1 pinto with twin 45’s and a mechanical fuel pump.
I was out for a drive on Saturday and the fuel was getting low, I went past one garage just so I could go through a tunnel and rev the
engine, just as I got to the bottom of the hill the car started to splutter and it eventually cut out just infront of the garage
entrance.
So out I got and pushed it up the hill to the forecourt and filled it up. I discovered that I could get 24.5 litres into the tank.
Turned the engine over for a while but no joy.
I took the top off the carb to find it empty there fore there was a problem getting fuel through to the carbs. I bought a new can and put some more
petrol in and filled one of the float chambers.
This allowed the car to fire up and after a second of two it was firing on all cylinders.
My question is would an electrical fuel pump have been a better Choice for priming the carbs as it would pump without the engine turning over? But how
do you stop them flooding the float chambers or bending the float arms when they are full?
I know the solution would be not to let the tank go dry but well sensible I’m not….
Ditch
[Edited on 28/1/08 by ditchlewis]
[Edited on 28/1/08 by ditchlewis]
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Peteff
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| posted on 28/1/08 at 01:30 PM |
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If you get the right pump it will cut out when the float bowls are full and there is pressure in the line.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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02GF74
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| posted on 28/1/08 at 01:31 PM |
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the pump would have primed by itself eventually.
electric has the advantage in that in can run without the engine running; and are avaialble in different flavours.
for carbs, you would be looking at a low pressure pump, 3 psi max.
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ditchlewis
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| posted on 28/1/08 at 02:10 PM |
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i will look into fitting an electric pump at some date, when cash and SWMBO allow
till then i suppose i had better keep the tank filled.
ditch
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whitestu
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| posted on 28/1/08 at 03:16 PM |
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I picked up a ZX6R bike fuel pump for £10, which I'll be using with bike carbs. Can't see why it wouldn't work with Webbers.
Stu
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snapper
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| posted on 28/1/08 at 07:51 PM |
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If you fit an electric pump then you should also fit a pressure regulator such as a Filter King and set the pressure to the carbs at about 2.5 psi for
webbers and 1.5 to 2 for bike carbs otherwise the extra pressure can indeed defeat the float needle valves
[Edited on 28/1/08 by snapper]
I eat to survive
I drink to forget
I breath to pi55 my ex wife off (and now my ex partner)
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ditchlewis
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| posted on 29/1/08 at 12:21 PM |
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i already have a filter king pressure reguator fitted.
i will put the electric pump on my to do list in position 14
ditch
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