Xantia – Help “pressure regulator”

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lancia58
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Xantia – Help “pressure regulator”

Post by lancia58 »

Do all pressure regulators regulate to the same pressure ? Is there any data that link the pressuer regulator part number to the pressure it regulates to ?

Thanks
Zohar
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Re: Xantia – Help “pressure regulator”

Post by CitroJim »

All the same. 170 bar.

There are only three different varieties right across production. The coarse thread one (referring to the thread size of the inlet pipe from the pump, the fine thread one used from about 1996-7 on and the FDV version used on sinker XMs and Xantias and perhaps BXs with power steering.
Jim

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lancia58
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Re: Xantia – Help “pressure regulator”

Post by lancia58 »

Thanks Jim !! Do you know if all pressure regulators that installed on a none sinker are interchangeable ? looking at Citroen.Service reviles that there are more than one pressure regulator on none sinker and the pipe diameter is same ? Are there two pressure regulators with different part number that are interchangeable ?

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Zohar
Xantia 2.0 16V Automatic make year 2000 LHD
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Re: Xantia – Help “pressure regulator”

Post by CitroJim »

Yes, provided the inlet pipe threads are the same.

The only difference I've found is that on some the return pipe spigot angle is different. This is the one moulded into the plastic cap. To overcome this difficulty you can swap caps over so the pipe spigot remains at the correct angle.

The FDV and non-FDV cannot be swapped.
Jim

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lancia58
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Re: Xantia – Help “pressure regulator”

Post by lancia58 »

If the diameter of the inlet pipes are the same does it indicate that the inlet pipe threads are the same ? Is there any data/document that links the pressure regulator part number with the threads standard ?

Thanks
Zohar
Xantia 2.0 16V Automatic make year 2000 LHD
Citroen C4 THP Automatic make year 2009 LHD
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Re: Xantia – Help “pressure regulator”

Post by CitroJim »

The changeover from coarse to fine thread and with it the change from a traditional rubber seal on the pipe to a conical metal seal happened around 1997 or around the time the Xantia Series 2 was released.

Just by looking it's hard to tell the two apart as the unions and pipes look very similar. Only by measuring the thread pitch can you be 100% sure.
Jim

Runner, cyclist, time triallist, duathlete, Citroen AX fan and the CCC Citroenian 'From A to Z' Columnist...
lancia58
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Re: Xantia – Help “pressure regulator”

Post by lancia58 »

Assuming the molded plastic cap can be swapped, is there a way to know if the 5274 19 and 5274 16 are interchangeable ?

Thanks
Zohar
Xantia 2.0 16V Automatic make year 2000 LHD
Citroen C4 THP Automatic make year 2009 LHD
Citroen C4 VTS 2.0 16V make year 2006 LHD
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Re: Xantia – Help “pressure regulator”

Post by Deanxm »

Zohar why do you want to swap your pressure regulator?

D
XM Prestige PRV6 92
Talbot Express Autotrail Chinook 89
Mitsubishi L200 Trojan 14
Xantia Activa 95, sold (missed)

Service Citroen is awesome, it shows me pictures of all the parts i used to be able to buy............
lancia58
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Re: Xantia – Help “pressure regulator”

Post by lancia58 »

Because my Xantia's pressure regulator it is leaking

Zohar
Xantia 2.0 16V Automatic make year 2000 LHD
Citroen C4 THP Automatic make year 2009 LHD
Citroen C4 VTS 2.0 16V make year 2006 LHD
Deanxm
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Re: Xantia – Help “pressure regulator”

Post by Deanxm »

Where from, the bottom seal or the side one? they are easy to repair if you have a big vice or G clamp and a new seal.

D
XM Prestige PRV6 92
Talbot Express Autotrail Chinook 89
Mitsubishi L200 Trojan 14
Xantia Activa 95, sold (missed)

Service Citroen is awesome, it shows me pictures of all the parts i used to be able to buy............
lancia58
(Donor 2022)
Posts: 711
Joined: 30 Nov 2010, 07:02
Location: Israel
My Cars: Xantia 2.0 16V Automatic make year 2000 LHD
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x 8

Re: Xantia – Help “pressure regulator”

Post by lancia58 »

I cannot tell where it is leaking from , but there is a hose/pipe ( I think it hooked to the air conditioner compressor ) that is right under the regulator and it LHM is dripping on it very slowly though. I have to add 1/2 a litter of LHM once a month or so.

Zohar
Xantia 2.0 16V Automatic make year 2000 LHD
Citroen C4 THP Automatic make year 2009 LHD
Citroen C4 VTS 2.0 16V make year 2006 LHD
Deanxm
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Joined: 18 Dec 2008, 17:57
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x 87

Re: Xantia – Help “pressure regulator”

Post by Deanxm »

I would pressure wash it off, or brush some degreaser on and rinse it all off and check where its leaking from, it could well be a pipe union or the rubber return pipe that is the cause.

D
XM Prestige PRV6 92
Talbot Express Autotrail Chinook 89
Mitsubishi L200 Trojan 14
Xantia Activa 95, sold (missed)

Service Citroen is awesome, it shows me pictures of all the parts i used to be able to buy............
lancia58
(Donor 2022)
Posts: 711
Joined: 30 Nov 2010, 07:02
Location: Israel
My Cars: Xantia 2.0 16V Automatic make year 2000 LHD
Citroen C4 THP Automatic make year 2009 LHD
Citroen C4 VTS 2.0 16V make year 2006 LHD
x 8

Re: Xantia – Help “pressure regulator”

Post by lancia58 »

BTW how will it affect the system if there is a leak due to a wore O-ring ?

Zohar
Xantia 2.0 16V Automatic make year 2000 LHD
Citroen C4 THP Automatic make year 2009 LHD
Citroen C4 VTS 2.0 16V make year 2006 LHD
Deanxm
Posts: 3327
Joined: 18 Dec 2008, 17:57
Location: Isle of wight
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x 87

Re: Xantia – Help “pressure regulator”

Post by Deanxm »

It wont affect it at all, just will annoy you having to put oil in all the time.

D
XM Prestige PRV6 92
Talbot Express Autotrail Chinook 89
Mitsubishi L200 Trojan 14
Xantia Activa 95, sold (missed)

Service Citroen is awesome, it shows me pictures of all the parts i used to be able to buy............
lancia58
(Donor 2022)
Posts: 711
Joined: 30 Nov 2010, 07:02
Location: Israel
My Cars: Xantia 2.0 16V Automatic make year 2000 LHD
Citroen C4 THP Automatic make year 2009 LHD
Citroen C4 VTS 2.0 16V make year 2006 LHD
x 8

Re: Xantia – Help “pressure regulator”

Post by lancia58 »

It wont affect the regulated pressure at all ? Is there a way to know if the 5274 19 and 5274 16 are interchangeable ?

Zohar
Xantia 2.0 16V Automatic make year 2000 LHD
Citroen C4 THP Automatic make year 2009 LHD
Citroen C4 VTS 2.0 16V make year 2006 LHD
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