What a b*****d of a job. Access through a tiny gap from above. Every time the socket slipped off, it become lodged in the bowels of the engine below, and took a good 10 minutes to extract using long screwdrivers and all sorts.

Anyways, brand new pump now fitted. The new one's a 'Weber' make and looked identical except that the inlet and outlet pipes are about a couple of centimetres further to the side than the original. Not a problem, thinks I, until it was fitted...

Because of the slight change in outlet position, the rubber outlet pipe feeding the carb now runs very close - within a centimetre - to the exhaust 'balance' pipe which runs from side to side and joins the manifolds at each side (and also goes through where the carb is mounted.)

As I've yet to start the engine, I don't know how hot this pipe gets, but I suspect it's very...

For pity's sakes. How can two pumps be SO similar but SO significantly different?!

I guess my only options are to replace with another new pump, or get a repair kit for the original? I do have exhaust lagging which I can wrap around the pipe, but I'd always worry in case it fell off!

Any ideas? Cheers.

(What car is the Weber carb intended for, then?!)

Citroen didnt make fuel pumps they bought them in so presume they looked at the fuel pump catalogue and said" we'lll have that one", and so the same pump may appear on many models, the same pump was on a vauxhaull nova i had and an almost identical one on aircooled VW
suspect the problem is because its a replacement for an application where the run of the fuel pipe wasnt so critical

10 mm or so? if you shorten the pipe does it move it away from the exhaust?
i wouldnt worry mines pretty close too

Sean

Thanks for the reply, Sean.

Shortening the pipe won't help as it has to go vertically up at that point - it's pretty much as it leaves the actual pump. How close is yours to the exhaust cross-over pipe?

Hmm, interesting - I'll check out alternative vehicles.

Ta!

its about 15mm it has a bit of glassfibre woven sleeve over it but even in the 45*c of the sahara fuel vaporusation was never a problem there is a fair bit of wash from the fan in that area.

Sean

Thanks again, Sean.

I'd be happy if it was a good 15mm distance, but mine is now much closer than that - probably around 6-odd mm. My worry isn't petrol vapour-lock, but more va-va-voooom. Or, should I say, ka-booom.

If that cross-pipe gets anything like as hot as the rest of the outlet manifold, then I know the pipe won't take it for long. I have exhaust wrap, but the thought of having to rely on that as an anti-explosion solution ain't a comforting one.

Looks like another change of pump FFS!!!

Hi there,

Mine's not far away from the exhaust strut either, and my pump was an identical model to the one I took off, so it must have always been like that.



I've never had any problems with it like that over many years I must admit.
Chris

ps. For the eagle-eyed amongst you, that flattened and perished breather tube has since been replaced!

Blimey, Xmas, you're living on borrowed time!

(Only kidding...)

Thanks for that; clearly not too unusual then. I notice it's braided pipe, so I think I'll upgrade mine.

A thought I had - I'm going to try and gently bend the outlet pipe so's the hose slants away from the exhaust. Just a teeny bit should do it...

Thanks all - much appreciated.

I'd be tempted to experiment more with different pipe lengths before changing the pump again, if I were you. Perhaps a longer run of pipe would force that curve slightly further away from the manifold?

Cheers, Luke.

Because of the altered position of the pipe outlet, it heads straight up very close to the exhaust pipe. An additional problem is that it's also so close underneath that there isn't much room to bend the pipe away before it gets there! So I don't see a different length of pipe helping in this case.

Possibly a more flexible pipe would work better than the quite rigid original one. However, I'm reluctant to go for a solution that relies on the pipe being held away 'artificially' - anything like this could always fail and that would bring the pipe into contact - or as near as makes no difference.

So - drum roll - I'm going for the outlet pipe bend...

I know, and it probably looks nearer in that picture than it is in reality, but seriously its never been all that far away for years and years, including the trip through Morocco, and I've never had a problem. The car's been through a few 2CV specialists in its time too and its never been commented on...
:gallic shrug: ... hmm ... no emoticon for gallic shrug then.