Citroen XM Forum

That makes some sense, in that the variable delay stalk incorporates a variable resistance, which works as part of the delay circuit built into the wash-wipe relay. The higher the total resistance in circuit (relay + stalk), the longer the delay (up to a limit). My guess is that "fixed delay" stalks either have a single resistor in them, or a shorting link, relying on the relay to provide its basic delay period.

Variable delay was a cheap option for PSA to provide, but likely seen as a desirable extra by customers.

Assich wrote: ↑

Sun Jul 07, 2019 6:47 pm

That's interesting Dean. I just fitted a variable stalk in place of a standard one in my 92 build and works as should without rewiring.

That is odd, I wonder If my stalk was a mk2 one and the wiring difference was not anything to do with the variable int wipe function then...

D

I think that the wiring difference was a pin change by Citroen quite early on in the Mk 1 build program.
Not a change in the variable wiring.
The link joins original and new contacts so that either switch version will work.
That means there are at least 4 different switch versions.
Long time ago but I thought I posted details with circuits.

John

Good to meet Lee and John at the DS rally on Saturday, and clear some space in my garage!

I have more pictures of the next batch to go!
First two Pics are duff tops so only good to be sent for refurb Next two are ones I deem as good though the top on the far left is the least good of the 4.

The next two items of unobtainium may be better off on ebay- they are brand new tops, they have a 3.5mm hydraulic pipe fixing that needs drilling out to accept standard pipes- Somewhere like pleiades can do this easily. Also have a lot of rams to fit said tops (more in shed!) Below a very poor picture of two more duff strut tops and rams/hub Also have a 2.1td exhaust with a bit of surface rust but otherwise seems sound.

Also 6 steel wheels from Xm Plus wheel trims (two more on wheels above) Rear wheel arch liners- have fronts as well Also instrument panel- have another in less good nick without Turbo gauge as well If interested let me know before they go on the bay!
D

davetherave wrote: ↑

Wed Jul 10, 2019 1:50 pm

The next two items of unobtainium may be better off on ebay- they are brand new tops, they have a 3.5mm hydraulic pipe fixing that needs drilling out to accept standard pipes- Somewhere like pleiades can do this easily.
20190707_205823.jpg
20190707_205836.jpg

Be aware, non-hydractice strut tops produce a different castor setting to hydractive ones.

I do not think that is a problem.
It is the fittings at the bottom of the strut that alter the angle not the strut head with its rubber flexibility.
We went through this on the other forum many years ago.
The man with the 2.1 estate in Norway was making replacement parts in stainless steel.
I sent him UK hydractive alloy examples and he copied them in stainless.
Unlike his stainless clutch bell cranks there was no volume production of the steering clamps.

Dean's opinion might be valuable here as I supplied him with a NOS pair of these strut heads.
He got them drilled out and they have been on his car for some years now.

John

Hi John,

I'm not aware of any difference in any of the steering or suspension components between Hydractive or standard suspension, other than the strut head. My understanding is the strut head moves the strut upper mount rearwards for standard suspension, thus increases caster angle.

If fitted as a pair any effect will be negated, though there may be differences in how the suspension reacts.
I can only suspect Citroen felt it was necessary, otherwise they wouldn't have made two different designs, just the same one with different size orifaces.

In reality, the effect is probably minimal.

Hi Will

As I understand apart from the pipe thread size strut heads have identical geometry.

The change is effected at the bottom end.
Details are given:-
Section 7 of the workshop manual (book 058932) sheets XM 410-00/1 page 2.
This shows the plate markings on the alloy baseplate.
Difference is by plate casting angle.
Non hydractive plates are marked with a number 4 on the top of the plate.
Hydractive are marked with a number 1 on the top of the plate.
The plate holds the roll bar at the rear and the back end of the wishbone at its front.
The cast steel wishbone top clamp has a matching angle and similar marking.

Sorry no scanning facilities at present.

John