About Fuel Pump typs

[Sandun]

Hi - I have seen 2 type fuel pump - one of them 2 points , other one 1 point -
so , I want to know what is the difference of them -
my car have a 2 point pump , if i set to the car 1 point pump , will it work well ?
and i tell me, i have seen some fuel pump has a big Resister near the point set -
what is this ? for what ? is the pump work without the Resister ?
My main problem is 2 point pump work as a 1point pump ( is the car work from 1 point pump? )

[simmitc]

The pump is the same basic unit. Originally the points had one set of contacts, but the double set of contacts was introduced as being more reliable - it spreads the switching load between the two contact points, and so (at least in theory) reduces wear. Either type will work perfectly on your car.

[Sandun]

Thank u -- i have seen some fuel pump has a big Resister near the point set -
what is this ? for what ? is the pump work without the Resister ? not in my fuel pump

[David W.]

I doubt it's a resistor. It's either a condenser or a diode. It's function is the same as the condenser in the distributor. It cuts down the sparking at the points when they open and close.
If you use a condenser, I believe it can go in either direction. If you use a diode, they are specific as to direction.
I believe that you can run without either, but expect to burn through points very quickly.
David
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[Sandun]

Thank u so much mr David for ur image and details - it must be a condenser - I dont no how to set it and what is the condenser Name ( ??? Fu /ohm/ volt ? ) the condenser not in my F pump - i think it use as a protect pump too.

[Sandun]

Su fule pump has a small hole - friend says " If Diaphragm damage fuel come out from the hole " is it truth ?[frame][/frame]

[bmcecosse]

Yes - I think that will be true.

[David W.]

The condenser is item 69 on this page.
http://www.moss-europe.co.uk/Shop/ViewP ... exID=17085
I hope you realize that the condenser in my picture is burned up. Good ones don't look like that.
If you are handy with a soldering iron, you can find a condenser in an old radio or other electronic device and fabricate one for your pump.
David

[MarkyB]

Although it's true that petrol would come out there I've never seen it actually happen.
The diaphragm gets hard and useless before it actually breaks in practice.

[bmcecosse]

I've never known it happen either - but I guess it might!

[SUE482]

No capacitor fitted on manufacture, so no need, unless your radio has some interference in which case it may help but generally its picked up from the supply, put a choke in, or bad earthing to the aerial and/or both.