Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Tell us your ongoing tales and experiences with your French car here. Post pictures of your car here as well.
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CitroJim
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by CitroJim »

That's a great use of an old number plate Matt!
Jim

Runner, cyclist, duathlete, Citroen AX fan and the CCC Citroenian 'From A to Z' Columnist...
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MattBLancs
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by MattBLancs »

Yes, it's handy stuff - 3mm polycarbonate? Cuts nicely, can heat bend it to shape it.

Ended up with a few spare plates, mostly from number plates for the trailer. Though did treat the C5 to new front and rear (so the rear one will be the trailer plate once I get the towbar wiring completed)

Boot torch batteries, charger recons 703, 703 and 730 mAh capacity of the three cells, pretty good as imagine they'll be the originals??? 2009 quite remarkable the more I think about it!
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MattBLancs
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

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Sometimes a problem gets a lot of thought and then attempt at a resolution. And sometimes I look at a couple pictures and get the drill out...

Electric boot seems like high resistance sometimes stops mid travel as per my post here:
viewtopic.php?t=60312&start=15

Hypothesis: excessive resistance in drive system.

Interesting details on the inner workings here:
GiveMeABreak wrote: 23 Nov 2018, 13:48 Here's some info in case it helps if some investigation is required:

Image

(1) Motorised tailgate balancing struts.
(2) Motorised tailgate mechanism.
  • The motorised tailgate mechanism performs the opening and closing of the motorised tailgate.
  • The position and the speed of the assembly are measured by a linear potentiometer incorporated in the motorised tailgate mechanism.

Function

Image
  • The motor of the motorised tailgate mechanism "a" drives the gears "e" in rotation, depending of the direction of opening or closing of the motorised tailgate.
  • The rotation of the gears "e" drives the movement of the chain "f".
  • The fixings "g" of the motorised tailgate balancing strut cables are linked to the chain "f", driving the movement of the motorised tailgate balancing struts, making the tailgate open or close.
  • The linear potentiometer "h" gives the position and the speed of the tailgate to the motorised tailgate ECU.
  • The motorised tailgate mechanism can be clutched via the clutch "c" by action of the clutch motor "b" on the clutch spring "d", which locks or releases the central shaft of an epicycloïdal axle located under "d".


Image
(1) Anti-pinch sensors.
(2) Motorised tailgate balancing strut.
(3) Motorised tailgate mechanism.
(4) Motorised tailgate opening control.
(5) Motorised tailgate closing switch.
(6) Motorised tailgate ECU.
(7) Motorised striker plate.
(8) Motorised tailgate lock.


Specification of the linear potentiometer:
  • Voltage 5 V
  • Information outputs: Position between 0,4 and 4,6 V (0,4 V = With the tailgate closed ; 4,6 V = With the tailgate open)
  • Total resistance: 5 kohms
  • Resistance between the information output and the earth of the potentiometer: between 30 Ohms and 4,9 kOhms approximately (Measure : connector disconnected
Specification of the clutch motor:
  • Control: OCR
  • Duration of voltage: Around 500 ms
Operation voltage thresholds:
  • Less than 8 V - more than 16 V: The system is not operational, declutching is not possible
  • Between 8 and 10,5 v: The system is not operational, only declutching is possible
Image
Channel No. & Designation
8-Way Black Connector
1 - Motorised tailgate motor control (Tailgate opening direction if at +)
2 - Motorised tailgate motor control (Tailgate closing direction if at +)
3 - Not connected
4 - Tailgate mechanism clutch motor control (Declutch control if at +)
5 - Potentiometer supply
6 - Tailgate mechanism clutch motor control (Clutch control if at +)
7 - Motorised tailgate position information
8 - Potentiometer earth
Here are the ECU connections - obviously part 'b' is the male connector of the female shown above in more detail.
Image
Channel No & Designation
Tailgate Locking 16 Pin Connector 'a'
1 - Electrical earth
2 - Lock information tailgate open
3 - Positive control : LH anti-pinch sensor
4 - Positive control : RH anti-pinch sensor
5 - Negative control : RH anti-pinch sensor
6 - Motorised striker plate control
7 - Boot closing switch lighting control
8 - Motorised tailgate opening control status
9 - Power earth
10 - Motorised striker information: gone in
11 - BODY CAN low
12 - BODY CAN high
13 - Control - LH anti-pinch sensor
14 - Tailgate opening exterior control signal
15 - ECU supply
16 - Power supply
From viewtopic.php?p=592251#p592251
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MattBLancs
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by MattBLancs »

Something non standard has appeared....
16829535745414792186109049929057.jpg
Rather a rare breed on the modern car!
Rather a rare breed on the modern car!
Let's see if it works!
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MattBLancs
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by MattBLancs »

GiveMeABreak wrote: 09 Apr 2023, 21:50 I think you're referring to this lot, which is also supposed to be included when new for your vehicle:

Image
From here:
viewtopic.php?p=751689#p751689

Time to sort it.
Anonymous oval plug in centre wheel well
Anonymous oval plug in centre wheel well
Mounting points at two o'clock and eight o'clock positions. Straps are new obviously
Mounting points at two o'clock and eight o'clock positions. Straps are new obviously
EBay buckles and 25mm webbing:
16829600674127783980489938807116.jpg
Better than nowt!
Polystyrene thing still not actually restrained as shallower than depth of wheel but at least the wheel itself cannot shuffle about so freely now
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MattBLancs
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by MattBLancs »

MattBLancs wrote: 21 Apr 2023, 07:36 I've ordered some webbing and some buckles:
...
I've done my usual "it's cheaper for more and will come in useful" so 30m of webbing and 25 buckles. Need about 1 - 1.5m and 1x respectively!
16829613043593839385647489742557.jpg
This toolset had a half hearted clip from new, I've nearly tipped the contents out on many occasions= fixed with a bit of the new strap and a spare buckle - it's coming in useful already!! :-D
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MattBLancs
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

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MattBLancs wrote: 27 Apr 2023, 21:27 406 Coupe:

Replacement engine mount purchased, not the correct part number, but matching fitment and a hydro mount as it should be. The one I've purchased is listed for 306 and 406 DW8 and 2.0 HDi, am hopeful all alloy EW10J4 and DW8 or DW10 are close enough in engine weight and peak torque output as to make the mount chosen good enough. Wrong item picked as I'm a cheapskate obviously, proper part number mount = cheapest about £20 each. One I've got =£6.60. it niggled me that a good chunk of the cost was the postage charge, so undermined the cheapskate reasoning by buying two of them!

Have the 306 HDi to fix at some point and I've never changed this mount on that, so at least the spare should suit that application.
Just for future reference:
406 Coupe upper engine mount "donut" type part number: 1844.77
Actually as was originally automatic, may instead be: 1827.32

Part bought (306 DW8) number: 1844.47
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MattBLancs
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by MattBLancs »

C5, a quick dig on catalogue ssg Asia site:

FRIP bearing: 3640.69

Video in discussion here: viewtopic.php?p=559987#p559987 chap mentions a protector "washer" being from a Peugeot 508, but the parts catalogue suggested "swivel protector" 3623.26 should be fitted to my C5.

No plentiful sources of them online (this is nearest I have found = https://peugeotcitroendsparts.com/peuge ... or-362326/ £2.57 each (Inc vat but think + delivery cost)

So decided to seek out some FRIP that come with this cover included, hence:
Buy it now has occurred! :)
Buy it now has occurred! :)
This bit!
This bit!
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by MattBLancs »

Back to 406 Coupe:
EW10A engine fitted with EW10J4S exhaust manifold:
Mmmm tubular
Mmmm tubular
Note central stud of EW10A in place of two on the earlier engines. Hence cereal packet in the go again:
No, won't be used as an exhaust gasket! Just acting as template for the new hole
No, won't be used as an exhaust gasket! Just acting as template for the new hole

Interesting amount of difference between the EW10J4 and later EW10A, for example older engine (J4) lower rear engine mount carrier is cast aluminium and four bolts plus two location studs
Later (A) is much, much heavier cast steel item and only three bolts.

EW10A block has two normally unused threaded holes which the earlier mount can use as normal, but the newer engine's third bolt doesn't feature on the EW10J4 block! So old mount fits new block but new mount doesn't (fully) fit old block! Or put it differently, I now feel lucky not to be either making a new bracket or giving up on my cheap EW10A and finding a closer match / rebuild the current one.

Old bracket has the mount about 70mm closer to the centre line of the car, based on a quick comparative measure relative to the oil level sensor position


Incidentally old engine is clearly in near of a timing belt end crank oil seal, the whole timing setup is coated in oil top to bottom! Explains why generally but oily in engine bay at that end - done must be flung beyond the plastic belt cover/housing
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MattBLancs
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by MattBLancs »

There's two ways to paint underside of a trailer, lie on your back and gets showered in the stuff, or...
Spoiler: show
[
A little ingenuity!
A little ingenuity!
/Spoiler]
:-D
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CitroJim
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by CitroJim »

I like it Matt :D A nice bit of lateral thinking!
Jim

Runner, cyclist, duathlete, Citroen AX fan and the CCC Citroenian 'From A to Z' Columnist...
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MattBLancs
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by MattBLancs »

For future reference:
EW10J4 + BE4 gearbox,
Without: inlet manifold, exhaust manifold, starter, alternator (and associated heavy cast steel mounting bracket)

Weighed on a spring balance (last calibrated in January 1986!)

Weighed
Crane, balance and load
Crane, balance and load
4lb per division!?!
4lb per division!?!
312lb = 141.5kg
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MattBLancs
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by MattBLancs »

EW10J4 without gearbox
16846658881793710500643890222079.jpg
232lb = 105.2 kg.

By subtraction BE4 = 36.3kg (or put another way, spring balance is not so far off!)
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MattBLancs
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by MattBLancs »

BE4 weighed on its own: 80lb = 36.3kg, agrees with the maths too! :)
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

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EW10A oil level sensor= left**, Vs EW10J4 sensor right**. Connector at different angle. Leaves the EW10A sensor pointing towards the EW10J4 engine mount. Rather too close to plug it in.
(** Picture lost as auto-signed out. :( Might take another, if I remember!)
A nice build up of aluminium oxide made it very reluctant to budge. Very flat looking pair of (pale blue??) O-rings swapped with a couple of new spare ones from a Fuel filter (yellow one and a green one)