End of the Long Sleep

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xmexclusive
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End of the Long Sleep

Post by xmexclusive » Sat Jul 27, 2019 5:47 pm

Started the process to return an early (1994) 2.5 Exclusive to the road.
BOK has been dry stored for about 12 years.
Originally there was a stalling problem that a Citroen dealer found difficult to pin down.
A rather expensive new injector pump without certainty of success was the diagnoses.
So they offered a top end C5 at a reduced price.
BOK was well loved so put in the garage for repair later while the C5 lived on the drive.

Time has come to try to sort the problem and see what else happens from long term storage.

The initial assessment required a bit of air in the tyres, spare battery and some minor work on fuel supply.
Under the bonnet there was clear evidence that the car had been seen to by an XM specialist.
Quite a bit to sort and also things to return to original.

Once running it was clear that the suspension understood what was required of it and tried hard but fell a bit short.
The rust hunt then started with the strut heads.
Plenty of peeled rubber on the tops but only surface rust on the cone and no splits in the main rubber.
Spares to find to send to KINGas for rebuilding but not a critical job for the present.
The dropped gaiter was put back in place and the heads treated with rust converter.
Rule of thumb guide: If you cannot get the gaiter to stay in place the strut head has a serious problem and the bonnet is at risk.

Then the underside of the car was examined and condition recorded.
The mud flaps were removed for binning and the trapped mud shovelled out.
All seemed well with the body structure with most underseal still sounds.
The lifting points were straightened then all the reachable surface rust treated.
While the sills were sound there was paint spalling and surface rusting just below the front passenger door.
This was cleaned and protected.

Spare wheel carrier needed new hanger bolt and a usable wheel/tyre fitted.
Condition of the carrier left much to be desired but can wait till later as the wheel is held firm now.

So a couple of days ago BOK went for MOT.

Dieselman
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Re: End of the Long Sleep

Post by Dieselman » Sat Jul 27, 2019 5:55 pm

Aha...nice suspension, there John. ;)

Sounds like a great project.

I suspect the dealer is incorrect with their original diagnosis as the Bosch Vp36 pump is pretty robust and reliable, being a mechanical pump with electrical control, as opposed to a fully electonic pump.
If power is lost to the pump, even with the STOP solenoid activated, the metering valve will return to STOP and shut the engine off.

iirc, the only feedback from the pump is the speed sensor and fuel delivery position sensors, both which should give fault codes.

I suspect you have other pumps to use, but before that, check all electrical connections and read any codes.
xmexclusive wrote:
Sat Jul 27, 2019 5:47 pm
Under the bonnet there was clear evidence that the car had been seen to by an XM specialist.
Quite a bit to sort and also things to return to original.
The above normally appears to be the case. I've seen all sorts, broken pipe brackets, mutillated wiring, bolts missing, aftermarket/cheap parts.
XM are reliable cars when serviced properly and run on Citroen parts.

p.s. I bet it passed it's MOT.
92 2.1SED M.RP5740 ECZ Sable Phenicien
92 3.0 V6-24.Rp 5713 EXY Black
92 2.1SD M.RP 5685 ENT Blue Sideral
Prev
90 2.1SD M.RP 5049 EJV Mandarin
92 2.1SD A.RP 5698 EJV Mandarin
94 2.1SD A.RP 6218 ERT Triton Green
91 2.0SI M.RP 5187 EWT White

xmexclusive
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Re: End of the Long Sleep

Post by xmexclusive » Sat Jul 27, 2019 6:07 pm

I have a refurbished pump and will probably do a swap when the new belts are fitted as the extra work is minimal.
Need to do that before BOK is used in anger as the belts have been on and static for periods that are just too long to risk.
Soot clearing by revving ready for the MOT caused me much trepidation.
Originally I booked an off the record check of MOT items without the emission check revving.
Changed to a full MOT at the last minute.
Ideally I would like to be sure of the problem, not just swap the pump.
Citroen garage report shows no fault codes present despite the stalling problem.
I have to find which box where the Lexia got stored in.

Dieselman
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Posts: 10840
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Re: End of the Long Sleep

Post by Dieselman » Sat Jul 27, 2019 6:26 pm

All sensors and actuators are monitored on that Bosch EDC (Electronic Diesel Control). They record everything, so any issue should flag a fault code.

If there are no faults at all, suspect the power to the ECU going down.

That is the same EDC used by Mercedes C and E ranges and VAG V6-2.5 litre cars, so is well known.
92 2.1SED M.RP5740 ECZ Sable Phenicien
92 3.0 V6-24.Rp 5713 EXY Black
92 2.1SD M.RP 5685 ENT Blue Sideral
Prev
90 2.1SD M.RP 5049 EJV Mandarin
92 2.1SD A.RP 5698 EJV Mandarin
94 2.1SD A.RP 6218 ERT Triton Green
91 2.0SI M.RP 5187 EWT White

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