M925 OVN

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Nuage
Can find the S1 radio
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Re: M925 OVN

Post by Nuage » Tue Dec 29, 2015 9:29 pm

While poking about the engine bay I've found a couple of cables I'm not sure about.
The first was swinging about below the fuel filter area. I initially thought it had either been disconnected either, permanently for some reason, or absent-mindedly but can't see where from. It has two clips on the wire itself of the kind that are have a plug to push into a hole in a body panel. I now suspect it might be a spare part of the loom fitted for a car with air conditioning. Am I right?
IMG_2205.jpg
IMG_2206.jpg
And then there is this. The plugged cable that is fitted onto the little black bar with a hole in one end. It's got a spike that holds it to the bracket beneath the ABS valve block.
IMG_2207.JPG
Any ideas?

Cheers
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xmexclusive
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Re: M925 OVN

Post by xmexclusive » Tue Dec 29, 2015 10:07 pm

You are right about the first of those plugs, intended to connect to the A/C pressure switch.
The second plug with blank is a BENDIX abs test port.
On Mk1 XM's similar test ports are found in the wiring close to readable ECU's.
Surprised to see any of these test ports on a Mk2 XM as the ECU's test wires are loomed back to the 30 pin socket under the drivers dash.

John

Nuage
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Re: M925 OVN

Post by Nuage » Tue Dec 29, 2015 10:16 pm

Ahh! Thanks John.
Maybe because it's a very early Mk2? I keep meaning to note the RP number. Unfortunately that side of the car is all masked up at the moment for the spray job on the door trim, so I can't open the door.
it was first registered on 01/08/94

xmexclusive
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Re: M925 OVN

Post by xmexclusive » Tue Dec 29, 2015 10:49 pm

We have found a few wiring anomalies on early 2.5's.
Some of the early cars lack complete cruise wiring.
Could tell yours was early from the M reg.
Last Bendix XM's were RP 6741.
I think 1995 Model year for Mk2 XM's started 01/07/1994.

John

citroenxm
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Re: M925 OVN

Post by citroenxm » Wed Dec 30, 2015 10:11 am

M plate definitely bendix.. ive even seen N platers with bendix too..
Projects:(eventually if theres any body left)
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Nuage
Can find the S1 radio
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Re: M925 OVN

Post by Nuage » Thu Dec 31, 2015 1:59 pm

Have just been having a look at the cooling system prior to replacing the rads and coolant etc. I believe there should be 4 bleed points. I've found 3, the 4th seems to be missing.
It's the one between the engine and the bulkhead. Am I looking in the right place?
IMG_2210.JPG
Happy New Year!
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White Exec
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Orga / RP numbers: RP7165
1996 2.5TD saloon, Exclusive, Polar White
1992 BX19D Millesime, Sable
Location: ex-Ealing, Cheshire, W.Sussex & Surrey. Now living in Sayalonga (Malaga, Spain)

Re: M925 OVN

Post by White Exec » Thu Dec 31, 2015 3:27 pm

Andy,

The fourth bleed screw should be found just between the induction manifold and the bulkhead (as you say), next to the gap between the 3rd and 4th manifold lump (counting from the left as you stand in front of the engine) - more or less in a straight line backwards from the expansion tank filler cap.

Bleed screw is a hex-head brass screw, sticking straight upwards at you. Easily missed. Slacken screw only....do not remove or lose!

Make sure you bleed the system according to the book - i.e. with a temporary header bottle. Essential to avoid air pockets and serious problems. Only done completely when fans have cut themselves in a minimum of twice; might take up to an hour's work in cold conditions. The 2.5 is pretty miserly fuel-wise at idle!
Chris
1996 XM 2.5TD Exclusive RP7165 Polar White
1992 BX19D Millesime RP5800 Sable
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

Nuage
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Re: M925 OVN

Post by Nuage » Fri Jan 01, 2016 2:24 pm

Hi Chris and happy new year

Had another look for the elusive bleed point this morning.
I assume from your description it should be on one of the two pipes that supply the heater matrix. The top one I would imagine. And the Haynes manual is kind enough to have used the 2.5 in it's photos where I can see it clearly. I'm sure I don't have one. Not sure if you saw the pic on my last post. Would it be evident in the photo if there?
If it's absent I'm hoping it's not going to cause any problems with the bleeding of the system.

Andy

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White Exec
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Joined: Fri Mar 11, 2011 7:38 pm
Orga / RP numbers: RP7165
1996 2.5TD saloon, Exclusive, Polar White
1992 BX19D Millesime, Sable
Location: ex-Ealing, Cheshire, W.Sussex & Surrey. Now living in Sayalonga (Malaga, Spain)

Re: M925 OVN

Post by White Exec » Fri Jan 01, 2016 6:01 pm

Had a real close look at your photo, and yes, that's where it should be: in the top heater pipe, roughly half way along its length, pointing upwards. It is a welded-in steel tube, internally threaded for the bleed screw.

Must have been added after the early 2.5s, and for a reason. One more anomaly for John's book!

All the more important to bleed your system really thoroughly, and, when up to temperature, to run the engine at say 2000rpm for half a minute, several times, to drive air out of the system. You should see any purged air arriving at the expansion tank (and its temporary header bottle) as it gets driven out. When it's all gone all you should see, when revs are raised, is turbulence - no bubbles.

If you PM me your VIN number, I can PM you your RP number back, if you still can't open that door.

Happy New Year!
Chris
1996 XM 2.5TD Exclusive RP7165 Polar White
1992 BX19D Millesime RP5800 Sable
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

Nuage
Can find the S1 radio
Posts: 14
Joined: Mon Nov 16, 2015 10:12 pm

Re: M925 OVN

Post by Nuage » Fri Jan 08, 2016 9:20 pm

Had a little break from XMing. Spending so much of my time in the workshop was beginning to feel a bit of a busman's holiday.
In the meantime I've had a reasonable quote for doing the welding on the underside. The welder is happy for me to move the carpets and trim etc to save me some labour costs and him the hassle.
Question is, are there any pitfalls? Any tips? I need to remove trims, carpet and drivers seat, and on the other side, the carpet in the passenger footwell so he can attend to the hole on the outrigger.

Finally removed masking from the passenger door. My RP is 6419. That number will mean more to some of you than me I'm sure. Thanks for the offer of obtaining it by the VIN, Chris. I was quite happy to send it to you via PM, just didn't get round to it.

I have been starting to look at the suspension. Thought I'd begin by swapping the LHM for some Total Hydraflush. The LHM is a good bright green but, from what I can see of it, the filter has a grey slimy coating.
Trouble is I'm struggling to lift the cover etc off the reservoir to get the filter out. The pipes are restricting how high I can lift it. If I tilt it, it comes out further but the bottom of the filer holder catches the lip.
I'm scared of forcing it. Is there a knack? I've tried removing the air filter and pipe and undoing the reservoir fastening to get a bit more jiggle room.

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