sageman's 'barn find' v6 sei s1

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sageman
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Re: sageman's 'barn find' v6 sei s1

Post by sageman » Thu Sep 13, 2018 10:51 am

What’s the next step regarding my hydrolic leak then take that bottom bolt out and take the plate off ?
Presumeabily there will be a load of fluid come out if I do
1976 Reliant kitten
1985 Reliant fox Tandy campervan
1998 Peugeot 306 GTI-6
h̶o̶p̶e̶f̶u̶l̶l̶y̶ ̶a̶n̶ ̶X̶M̶ ̶o̶n̶e̶ ̶d̶a̶y̶
1993 XM sei V6

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White Exec
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1996 2.5TD saloon, manual, Polar White
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Re: sageman's 'barn find' v6 sei s1

Post by White Exec » Thu Sep 13, 2018 11:26 am

Did you manage to check out the regulator's return pipe?
Chris
1996 XM 2.5TD Exclusive RP7165 Polar White
2003 RAV4 D4D 2.0 5dr LHD Silver WORKHORSE
1989 BX19RD Delage Red Deceased; 1998 ZX 1.9D Avantage auto Triton Green Company car 1998-2001; 2001 Xantia 1.8i auto Wicked Red Company car 2001-2003

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sageman
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Re: sageman's 'barn find' v6 sei s1

Post by sageman » Thu Sep 13, 2018 11:41 am

Is the return pipe the one that curl round underneath the regulator before going back up and connects to a different pipe on the way up
1976 Reliant kitten
1985 Reliant fox Tandy campervan
1998 Peugeot 306 GTI-6
h̶o̶p̶e̶f̶u̶l̶l̶y̶ ̶a̶n̶ ̶X̶M̶ ̶o̶n̶e̶ ̶d̶a̶y̶
1993 XM sei V6

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White Exec
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Re: sageman's 'barn find' v6 sei s1

Post by White Exec » Thu Sep 13, 2018 12:21 pm

Can't actually see ours here; 2.5 engine bay is a bit crowded up front!

There are 3 hydraulic connections to the pressure regulator body.
Two are 3.5mm steel pipes, with a screw-in union (pumped pressure in, regulated pressure out).

The third connection is the Return (to reservoir); it will be a plastic pipe, similar size to the steel ones, that leads away from the regulator and should join up with some others before it heads back to the top of the reservoir.
The plastic pipe may be clear or black, usually 3-4mm diameter, and joins on to the unit with rubber tubular coupling.
It's these couplings that can leak.
Chris
1996 XM 2.5TD Exclusive RP7165 Polar White
2003 RAV4 D4D 2.0 5dr LHD Silver WORKHORSE
1989 BX19RD Delage Red Deceased; 1998 ZX 1.9D Avantage auto Triton Green Company car 1998-2001; 2001 Xantia 1.8i auto Wicked Red Company car 2001-2003

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Re: sageman's 'barn find' v6 sei s1

Post by xantia_v6 » Thu Sep 13, 2018 1:05 pm

The regulators do sometimes leak from the big O-ring behind that end cap. Another option is to send it off for reconditioning, as it will then come back recalibrated to the correct pressure (the pressure tends to droop with age).

There is a brief description of a regulator rebuild here: http://www.aussiefrogs.com/forum/citro% ... lator.html I know that I have seen a more detailed description on one of the forums, but can't find it at present.
1999 XM Exclusive V6 24V ES9 Manual (LHD) 105,000 km
1997 Xantia Exclusive V6 (RHD) 45,000 miles

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sageman
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Re: sageman's 'barn find' v6 sei s1

Post by sageman » Thu Sep 13, 2018 3:19 pm

So the oil cooler can just be removed can it how though do it just unscrew

I’m now curtain the hydrolic leak is from the bottom of the regulator

There is defiantly something wrong with the ICV or something related to it
Today I permently fitted the original ECU and started the car with the ICV disconnected electrically and it revs fine ignoring the still sticky throttle however with it connected it runs ok but when you rev it the revs bounce up and down

Do any have handy tyre to wheel arch measurements mine look quite high when on normal but might be because I’ve been looking at it for the last 2 weeks on the floor
1976 Reliant kitten
1985 Reliant fox Tandy campervan
1998 Peugeot 306 GTI-6
h̶o̶p̶e̶f̶u̶l̶l̶y̶ ̶a̶n̶ ̶X̶M̶ ̶o̶n̶e̶ ̶d̶a̶y̶
1993 XM sei V6

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White Exec
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Re: sageman's 'barn find' v6 sei s1

Post by White Exec » Thu Sep 13, 2018 5:10 pm

To remove cooler:
Unscrew filter
Unbolt the central coupling tube (this also holds the cooler in place)
Lift cooler off

Under the cooler will be an engine flange, which will accept a filter direct.
You will need to replace the original long (cooler fixing) central tube with a shorter one, just long enough to screw into the engine flange and the filter.

The top of the cooler and the engine flange are intentionally the same diameter, and take the same large square-section O-ring that you find on the filter itself.
Chris
1996 XM 2.5TD Exclusive RP7165 Polar White
2003 RAV4 D4D 2.0 5dr LHD Silver WORKHORSE
1989 BX19RD Delage Red Deceased; 1998 ZX 1.9D Avantage auto Triton Green Company car 1998-2001; 2001 Xantia 1.8i auto Wicked Red Company car 2001-2003

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Re: sageman's 'barn find' v6 sei s1

Post by Dean » Thu Sep 13, 2018 7:24 pm

https://frenchcarforum.co.uk/forum/view ... hp?t=44508
-
here is a photo of my Activa's pressure regulator from when i rebuilt it, should help show what you're dealing with.
-
D
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Re: sageman's 'barn find' v6 sei s1

Post by MTXM » Thu Sep 13, 2018 8:06 pm

Hi Ben,
- Your leak on the regulator is most likely the component helpfully marked on Dean's second photograph 'fiber gasket', although I think it is actually a flat rubber washer. I had the same issue on one of my cars and access to change insitu is torturous at best!
- The front ride height is given in the Haynes manual and is around 150mm measured from the sub-frame. If a car has been standing for along period the adjustment will go high and once again I have experienced this issue.
- For the oil cooler removal there is also a tab washer to remove under the filter and no replacement part is required as the extension fitted is an oversize tube.
With regards,
Matthew T.
1989 V6 Exclusive (Poland car)
1990 V6sei auto (grey auto)
1990 V6sei manual (gold car)
1990 V6.24 Pallas (Germany car)
1990 V6.24v (Scotland car)
Other previous XM sold and broken too many to mention!

xantia_v6
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Re: sageman's 'barn find' v6 sei s1

Post by xantia_v6 » Thu Sep 13, 2018 8:41 pm

MTXM wrote:
Thu Sep 13, 2018 8:06 pm
Hi Ben,
- Your leak on the regulator is most likely the component helpfully marked on Dean's second photograph 'fiber gasket', although I think it is actually a flat rubber washer. I had the same issue on one of my cars and access to change insitu is torturous at best!
I think that it is more likely the O-ring on the right (that is where mine leaked), also, the plastic cap is only subject to return-line pressure, so I would not expect a fast leak there.
1999 XM Exclusive V6 24V ES9 Manual (LHD) 105,000 km
1997 Xantia Exclusive V6 (RHD) 45,000 miles

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