Changing fuel pump advice needed

[Jonny_b]

Is it necessary to syphon off all the fuel as per the bible or can I clamp the fuel pipe next to the pump. I had a look today and the rubber pipe is about 3" long - is it possible to clamp this?

I don't really want 20 lts of fuel on my garage floor - not at £1.20 a ltr anyway!

Thanks

J

[chrispitman]

When I removed my pump I just used a G Clamp on the rubber pipe, just be careful not to over tighten and damage.

[griffter]

If you put a plastic bag over the filler and then refit the cap (to prevent air ingress) you can do it without clamping anything. You'll get a few drips on the floor (which you should clean up immediately) but nothing major.
I'm not a fan of clamping fuel pipes. Squashing a round fuel pipe so flat it seals cannot do it any good, and may over stress the rubber causing damage. If you do use the above method, have everything absolutely clean and ready to hand.

[Jonny_b]

Is the cap the only vent for the fuel tank? I thought the tank also vented throught he roll over valve and carbon canister.

[griffter]

Jonny_b said:

Is the cap the only vent for the fuel tank? I thought the tank also vented throught he roll over valve and carbon canister.

It does, but it's such a tortuous route it won't allow the fuel to pour out so much as drip. Anyway on the carbon can cars, the purge valve is only open periodically with the engine running I think?

[Slacey]

griffter said:

It does, but it's such a tortuous route it won't allow the fuel to pour out so much as drip. Anyway on the carbon can cars, the purge valve is only open periodically with the engine running I think?

Correct.

[GreenV8S]

Surely the filler cap will be sealed anyway, on the cat systems. The only vent is via the carbon cannister or (when it is open) the purge valve. Clamping the hose is the accepted way to do it and won't damage the hose unless it is already old and brittle, in which case you urgently need to replace it anyway.

Edited by GreenV8S on Monday 21st July 13:31

[chim]

I went the clamp route when I changed mine with no problems.

Chim