Xantia Hydraulic Pump

tanto · Unread post by **tanto** » 12 May 2005, 03:39

hello all
i have a xantia 2.0i sx n reg 1996 petrol
and was wondering if any other cars use the same hydraulic pump it is the one with 2 outputs and the pulley diameter is approx 5 inch looking from pulley end the 2 outputs are on the right hand side the one nearest the pulley being a 12mm into a 19mm and the one futher back is a standard 12mm
i need to replace mine as it it leaking badly so it would help if i knew what other cars to look for in the breakers as i cannot afford a recon one

Kowalski · Unread post by **Kowalski** » 12 May 2005, 03:49

The twin ouput hydraulic pump is only found on the Xantia. All Xantia's have the same pump, but some have different pulley sizes, the pulleys can be swapped around though.

tanto · Unread post by **tanto** » 12 May 2005, 03:55

is it as easy as swapping the pulley or is there more to it do you need to change seals etc.

Mandrake · Unread post by **Mandrake** » 12 May 2005, 06:22

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Kowalski

The twin ouput hydraulic pump is only found on the Xantia. All Xantia's have the same pump, but some have different pulley sizes, the pulleys can be swapped around though.
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Err, don't the very early model Xantia's use a single output pump similar to the BX ?
Regards,
Simon

tanto · Unread post by **tanto** » 12 May 2005, 06:42

i have noticed that some pumps have the outputs on same side of the pump as the input pipe whereas mine has the outputs on the right hand side of the pump and the input on the left hand side near the top looking from pulley side of the pump

AndersDK · Unread post by **AndersDK** » 12 May 2005, 23:20

Kowalski :
How do you swap the pulley on these pumps ?
The early '93-'94 Xantia have the BX type of PAS with single port pumps - and the dreaded FDV.

j_roc · Unread post by **j_roc** » 13 May 2005, 01:57

Whats the dreaded FDV? Im curious as I own a 1993 Xantia 1.9 td and the pump is making a f**k of a noise (a very strong rattle every 15 seconds) as the previous owner has snapped a bolt in the pump body. I was hoping to go to a local breakers in South Wales who stock old Citroen parts very cheap. I was hoping to get one off a old Bx.

Mandrake · Unread post by **Mandrake** » 13 May 2005, 02:00

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by j_roc

Whats the dreaded FDV? Im curious as I own a 1993 Xantia 1.9 td and the pump is making a f**k of a noise (a very strong rattle every 15 seconds) as the previous owner has snapped a bolt in the pump body. I was hoping to go to a local breakers in South Wales who stock old Citroen parts very cheap. I was hoping to get one off a old Bx.
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Rattle ??
Or a tapping/hammering sound, followed by a click then silence for a few seconds ?
If the latter, its more likely a dead accumulator sphere, as the pump will make a hammering noise while under load as there is no gas to absorb the shock of the pumping action.
Do you know the condition of the accumulator sphere ? There are many posts on this board describing ways to evaluate its condition..
A completely dead accumulator sphere is bad for a number of reasons, including putting excessive strain on the hydraulic pump.
Regards,
Simon

AndersDK · Unread post by **AndersDK** » 13 May 2005, 02:03

The "dreaded" FDV is the Flow Distributor Valve which is known to pack up at some time. It's funtion is to prioritisise the pressure flow to the PAS while driving.
It's is a squarish hydraulic component fitted above the regulator.
You can not use a HPpump from a BX - as the BX range of pumps uses a V-belt drive pulley - and the Xantia range of pumps uses the multigroove belt drive pulley.
I have not yet seen a DIY method (that works [;)]) removing a HPpump pulley.

j_roc · Unread post by **j_roc** » 13 May 2005, 02:04

Bugger [:D]

j_roc · Unread post by **j_roc** » 13 May 2005, 02:07

P.S it is like a hammer (how did you know?), and when Faye drives the car she says "I think its going to explode" [;)]

Mandrake · Unread post by **Mandrake** » 13 May 2005, 07:37

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by j_roc

P.S it is like a hammer (how did you know?)
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Because I've heard it before ? [;)]
<blockquote id="quote">quote:<hr height="1" noshade id="quote">
, and when Faye drives the car she says "I think its going to explode" [;)]
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Well if it is a dead flat accumulator sphere, its not a laughing matter. The operation of the front brakes will be compromised ESPECIALLY if you have ABS.
You didn't really answer my question either - does it only hammer for a few seconds, then click and go relatively quiet for a while ? If so it is almost certainly the accumulator sphere and not the pump. (Although conceivably long term abuse of the pump by having no gas in the accumulator sphere may do some damage to it)
You should check it out ASAP.
Regards,
Simon

peter1138 · Unread post by **peter1138** » 13 May 2005, 12:31

Yup, replace the accumulator sphere, j_roc. They're a lot cheaper and much less work than a new pump...

ActivaV6uk · Unread post by **ActivaV6uk** » 13 May 2005, 14:33

just one for the books, there are a few diferent pumps for the xantia, 3 main ones,
1 is the single output pump which comes with diferent offsets to make it so the pipes can get to the pumps with out having to say drill a hole through the altenator.
2 the twin output pump, this has diferent configurations and i was pleast to find that you can take it apart and change the configuration, i would not recomend this after having a play...
3 the v6 pump, has a seccond set of bearings to the normal twin output pump this is due to it being located ferther away from the ancillry belt than the standard pumps.
As said already the pumps come with diferent sized pullies too (all interchangable exsept the V6).
Andy

tanto · Unread post by **tanto** » 13 May 2005, 14:41

how do you change the pulley on the pump and how easy is it to do