HP Pump

[scarecrow]

I was just thinking - couldn't a Xantia pump be modified to fit a BX? I don't know how different the mountings, and more importantly the ratings of one would be, but maybe this is a possibility...

[Linegeist]

Bob, I'm probably just stating the obvious here, but couldn't it be that the problem wasn't the pump after all, as you'd tried two recons?

Steve

Nahhh. I was beginning to think that too. But (1) swapping my original pump back in instantly cures the fault(s) and (2) the recon pumps display different faults (one pump clatters like a bag of spanners and the steering's totally unpowered, the second has a pronounced 'tick' and the steering cuts in and out until 1500rpm)

Of course, I could just be a total numpty, with the mechnical abilities of a menopausal chimp on ecstasy and the IQ of an autistic turnip ............

[citroen7]

hi bob
my brother in law is coming over here on thursday for a family funeral he lives on anglsey i could send you a pump with him apart from the ones on the cars there must be half a dozen on the shelf

[akarso]

I was just thinking - couldn't a Xantia pump be modified to fit a BX? I don't know how different the mountings, and more importantly the ratings of one would be, but maybe this is a possibility...

I have one from XM V6 in my car, but don't know how much effort was required to fit it - previous owner did it...

[Aerodynamica]

Hi Richard

Does Malcolm lockwood still stock them do you know?

Thanks.

£1200! HAHAHAHAH!

I got a brand new pump for my BX last year from Mark Dunsmore at the Cit dealer near Lincoln (or some such) that had a list price of £12ty-million but he made it available for the same price as a recon one i.e. £150+ post.

I thought he had 2 of them and a brand new FDV too - there was rather a long list.

I should say that it didn't really improve the car much as I think the BX's steering woes occur as a result of worn pump AND out of kilter FDV and filters etc.

Still, worth a go tho

[jonathan_dyane]

FWIW Mark doesn't work for Citroen anymore.

The Xantia pump may be an option, although 'anti sink' cars (approx '94 onwards) had a 6+2 pump, which did away with the FDV. Will work if you bin the FDV and repipe to suit, but car will take an age to rise, as only two pistons provide suspension pressure (part of the reason for anti-sink).

[Tim Leech]

I wonder if the guys at NT Shaws still have any of the bx parts?

Tim.

[cauchoiskev]

it seems that no one (Unless someone knows different) has dismantled a BX pump without damaging.

One person claims to have done it : the mad Frenchman . You apparently need to make a special extractor tool to get the pulley off.

The casing is not heat-shrunk, it is only held on tightly by an o-ring. Once the pulley is off, just grab the casting with the pipe orifices in a vice and whack the main axle and the casing comes off.

There are only two joints and a bearing to replace. The mad frenchman just flips over the worn valve discs. I suppose they could also be machined.

[Aerodynamica]

it seems that no one (Unless someone knows different) has dismantled a BX pump without damaging.

One person claims to have done it : the mad Frenchman . You apparently need to make a special extractor tool to get the pulley off.

The casing is not heat-shrunk, it is only held on tightly by an o-ring. Once the pulley is off, just grab the casting with the pipe orifices in a vice and whack the main axle and the casing comes off.

There are only two joints and a bearing to replace. The mad frenchman just flips over the worn valve discs. I suppose they could also be machined.

That's pretty interesting! do you know how these disks wear? I thought they were thin disks - I'd be keen to learn of the wear properties. Also, surely the 'seat' in which each disk snaps back onto would also show some wear?

I was wondering also if there was a difference in the dismantling procedure between the green, steel-cased pump and the later, black plastic-cased item.

If anyone happens to know.

[jonathan_dyane]

I suspect the dismantling procedure is the same, but in the plastic-bodied pump a rather higher chance of oh-fuck-broke...

[cauchoiskev]

Also, surely the 'seat' in which each disk snaps back onto would also show some wear?

Yeah, that was my line of thought as well, but the mad Frenchman makes no mention of this. I think his main reason for opening the pump was to fix leaks rather than poor performance. Looking at the Citroën drawing, the seat seems strangely to be quite sharp, rather than a flat surface.

I was wondering also if there was a difference in the dismantling procedure between the green, steel-cased pump and the later, black plastic-cased item.

As Jonathan dyane says, I would tend to avoid plastic-cased pumps for refurbishing purposes.

Looking at my old pump, this seems to be the groove which you have to grab to get the pulley off :

[Linegeist]

The two recon pumps I've got here both have plastic end chambers, so presumably there's a way of reliably getting 'em off with out having an "Oh f**k-it! " moment.

I'm surprised the only thing keeping the pulley on the pump shaft is an interference fit ........ given the resistance to movement when the thing's at maxi chat. Is there no keyway?

[jonathan_dyane]

I *think* my knackered pump has the metal body...

[citro-geoff]

Hi Tim,have you tried Chris Jacobs of ex CGS.I know he is still doing the pumps from home now,as I have had one done recently for a V6 Xantia,and he used to supply some of the traders when he had the garage and hydraulics repair business.Unfortunately he had to give it up as a business,but still dabbles a bit.If you want his number ring me on 07980 559814. At least his pumps work 100% when they are done!!

[MULLEY]

citro-geoff, how much Chris charge for a bx diesel pump?