swapping HP pumps internals

B-Hive · Post by **B-Hive** » Sat Apr 02, 2011 12:05 pm

I have 2 spare HP pumps one internally tired and one purportedly with a cracked casing but good internals..How easy is it to transplant the internals from one pump to another??

If easy enuf this could be a low cost solution to the GT's poorly pump..

Also whilst on the issue of pumps (again!!) ..I have finally managed to tune the GT and got a nice slow slow and steady idle (700rpm)..

However at this speed the pump's noise is quite a distinct cyclic knock..

question....i have heard tell that a flat accumulator can have a nasty impact on a pump and can crack the case. I'm thinking the noise I'm getting is just the sort of racquet that might well cause a crack eventually..

anyhow just a thought

Muiruri · Post by **Muiruri** » Sat Apr 02, 2011 8:15 pm

It can be done.http://www.bxclub.co.uk/forum/viewtopic.php?t=12007. Watch out for the two seals. fond of leaking.

JayW · Post by **JayW** » Sat Apr 02, 2011 8:16 pm

toddao · Post by **toddao** » Sun Apr 03, 2011 8:33 am

There was a bloke selling the complete pump seal set on ebay.de last week for €10 inc. postage in Germany. I can ask him if he'll list it again if anyone's interested and post further afield.

Muiruri · Post by **Muiruri** » Sun Apr 03, 2011 11:23 am

For anyone planning to overhaul their HP pump in the near future; it would be wise to buy them.

Jaba · Post by **Jaba** » Sun Apr 03, 2011 10:18 pm

I see that he has relisted these seals but gives no price for posting other countries.
Not sure if many of those seals are used in the BX pump.
Still, not a bad buy for 10EUR.

Kevin B · Post by **Kevin B** » Mon Apr 04, 2011 3:58 pm

There was a bloke selling the complete pump seal set on ebay.de last week for €10 inc. postage in Germany. I can ask him if he'll list it again if anyone's interested and post further afield.

As tempting as that item is, from my limited interpretation skills, that seal kit looks like it is intended for the 6+2 pump, which is only found on the Xantia and XM.

Otherwise an excellent use of the scissor jack to remove the pulley, and split the casing off the pump