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1987 Citroen BX

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82 replies to this topic

#61 OFFLINE   Rod/b

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Posted 13 January 2019 - 05:47 PM

You certainly don’t fuck about, Angyl. Good stuff!

#62 OFFLINE   vulgalour

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Posted 13 January 2019 - 05:54 PM

Can't afford to!  BXs dissolve at an alarming rate if you give them half a chance.



#63 OFFLINE   purplebargeken

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Posted 13 January 2019 - 06:51 PM

Good work thus far Mr R.


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#64 OFFLINE   Shep Shepherd

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Posted 13 January 2019 - 08:35 PM

Looking forward to seeing how you progress with the car. I do like a nice BX :)


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#65 OFFLINE   Shep Shepherd

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Posted 13 January 2019 - 09:00 PM

Hopefully won't be taking you the 2.5 years it took me to find mine.

Somewhere out there is a barn full of CXs all owned by a fella named Dan Pearcey. S1s, S2s, Berlines and Breaks, he seems to have them all. Word is that he might even sell one or two of them in future. Here are just a few of 'em gathering dust.....

attachicon.gifimage.jpeg

Take your pick?

 

I've just shown this photo to a friend of mine whose father owned a series of CX Familiales in the 1980s and 1990s. He really wants to own one himself in the future (he drives a Saab 9-5 estate at the moment), so he had the online equivalent of a yoghurt truck crash  :mrgreen:


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Cars come and cars go, but The Volvo abides.

 

2003 - Date: The Volvo - 1990 Volvo 740 SE Dogmatic estate.

 

2016 - Date: The Aero - 2000 Saab 9-5 Aero HOT manual estate.


#66 OFFLINE   Tadhg Tiogar

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Posted 13 January 2019 - 10:27 PM

I've just shown this photo to a friend of mine whose father owned a series of CX Familiales in the 1980s and 1990s. He really wants to own one himself in the future (he drives a Saab 9-5 estate at the moment), so he had the online equivalent of a yoghurt truck crash :mrgreen:

Will he be needing a towel?

There are 32 CXs in that barn, but it has been suggested that there are more elsewhere. Basically this Dan Pearcey fella is to CXs what Phil Blake is to NSU Ro80s.

Ever wondered why you see so few CXs on the road? Dan's been buying all of 'em and hoarding them away.
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#67 OFFLINE   Talbot

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Posted 13 January 2019 - 11:50 PM

Watching this thread with great interest! While I had plenty of experience with BXs about 10-15 years ago, the corrosion points have moved on, and there's now another entire (vehicle) lifetime of deterioration that could have occured.. and having recently aquired a 1988 DTR, I may have some new and interesting places to go looking for rust.

BTW... with the four front-to-rear pipes. Are you familiar with their function, and hence where they are routed to/from? One of them can be happily changed for plastic if you wanted to, as it's the height-corrector return, which goes back to the LHM tank via the octopus (and hence is at very low pressure.)
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#68 OFFLINE   beko1987

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Posted 14 January 2019 - 12:17 AM

Watching this thread with great interest! While I had plenty of experience with BXs about 10-15 years ago, the corrosion points have moved on, and there's now another entire (vehicle) lifetime of deterioration that could have occured.. and having recently aquired a 1988 DTR, I may have some new and interesting places to go looking for rust.

BTW... with the four front-to-rear pipes. Are you familiar with their function, and hence where they are routed to/from? One of them can be happily changed for plastic if you wanted to, as it's the height-corrector return, which goes back to the LHM tank via the octopus (and hence is at very low pressure.)


ae235.jpeg
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#69 OFFLINE   vulgalour

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Posted 14 January 2019 - 12:21 AM

I'm not familiar with function yet, but I plan to replace them all with the same copper-nickel piping that Dean did the other two with since it's got a proven track record and I'd rather be safe than sorry when it comes to even the low pressure bits of the system.  There's a possibility it's not one of these pipes that have burst and it's something else that's gone instead, but I'm going to replace them anyway as a nice bit of future proofing, they're certainly past the first flush of youth now.

 

Key areas for rust seem to be the sill ends, the front inner wing seams, the bulkhead (I'm not sure which bit exactly, I'm going to assume the seams again) the edges of the entire boot and the rear spats.  In addition, many cars now seem to have problems with A pillars at the door hinges and the entire windscreen surround.  The construction of these cars seems to make them very prone to the sealant/protection splitting on the panel seams and moisture getting in unseen, which then blows the whole seam apart and by the time you see the rot, it's usually pretty well advanced.  This car is good because there's rot, but it's not anywhere near as advanced as you'd expect and the worst bits have already been dealt with.

 

Lower spec cars do seem to survive better, I'm not entirely sure why.  Ones with sunroofs suffer particularly badly, and we all know exactly why.  It's incredibly satisfying to have found a BX without a sunroof or power steering, less stuff to cause problems!


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#70 ONLINE   Ghosty

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Posted 14 January 2019 - 01:25 AM

I'm very envious tbh! I spent an afternoon with the autoshite beige bx cleaning the interior (where is that now?) and it was a lovely place to sit,

Sadly all beyond my competence and time limits,

 

Alas most of the custodians are quiet.

-strangeangel doesn't post any more of course he's just resurfaced to say the AS bike estate BX is possibly dying

-Cleon-Fonte seldom does

-KruJoe had some involvement (if not $) but is in Thailand for winter.


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#71 OFFLINE   Talbot

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Posted 14 January 2019 - 12:56 PM

I'm not familiar with function yet, but I plan to replace them all with the same copper-nickel piping that Dean did the other two with since it's got a proven track record and I'd rather be safe than sorry when it comes to even the low pressure bits of the system.


The four front-to-rears are as follows:

High pressure feed to the rear height corrector. Originates from the main HP feed (which comes from the ACC sphere initially) which splits (IIRC) on the front subframe to be able to feed the front HC and the brakes. This provides full system pressure to the rear HC.

Rear suspension pressure return. This is tee-d into the rear suspension cylinder pressure (IE after the HC, before the wheel struts) and goes back to the Dosieur valve, providing load-variable pressure fluid to the brake valve for rear braking.

Rear brakes circuit. This comes from the Dosieur valve (IE is in essence a continuation of the one above) and provides brakes. It tees somewhere on the rear axle and then becomes the curly-wurly pipes that go down the rear arms to the brakes.

The last one is the LP (IE barely above atmospheric pressure) return from the Height corrector, which is where the fluid comes back if you take a heavy load out of the boot, or put the car in low. It's connected to the Octopus at the front of the car (the rubber return pipes) hence could be changed for 4mm nylon if you chose to do so. Leaving it metal is wise, but if you came up a bit short on metal pipe, this one could be extended with off-cuts of metal pipe joined with rubber hose (diesel injector leak-off pipe works particularly well for this). One of my old BXs had a large section of this pipe replaced with rubber hose, and it was fine.


The BX hydraulic system is actually beautifully simple. It's biggest enemy is corrosion, be it on the pipes or various bits of the rear cylinders.
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#72 OFFLINE   dean36014

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Posted 14 January 2019 - 01:23 PM

I can confirm the pipe hat burst was definitely a high pressure one. The speed it managed to deposit the entire lhm reservoir contents was impressive. Mind you my Xm won the style stakes last year for lhm floor deposits in Tesco carpark!


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#73 OFFLINE   KruJoe

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Posted 14 January 2019 - 02:27 PM

 
Nicely bought Angyl, this thread is relevant to my interests.
 

Alas most of the custodians [of the Beige BX] are quiet.

-strangeangel doesn't post any more of course he's just resurfaced to say the [blue] AS bike estate BX is possibly dying

-Cleon-Fonte seldom does

-KruJoe had some involvement (if not $) but is in Thailand for winter.

 

I have recently been in touch with Strangeangel... expect progress this spring / summer.
The beige BX14 is still safe and dry in free storage, and has not been forgotten about.
 
Sorry Vulg, carry on with what you're doing.

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#74 OFFLINE   vulgalour

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Posted 14 January 2019 - 05:03 PM

Hooray it's Joe!  I'll do an update on today's exploits once I've got a cuppa and sorted through the photos taken mostly on shakey cam.



#75 OFFLINE   vulgalour

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Posted 14 January 2019 - 05:46 PM

Part of the reason for me getting stuck into the BX so quickly is that I'm back at work on Tuesday so I wanted to get through as much as I possibly could before then. It's the busiest week of the month for me and I didn't want to be distracted too much by the desire to fettle the BX.  That means there won't be another substantial update now until probably Sunday.  There might be some smaller cosmetic updates, like the wheel trims I'll be restoring, in the meantime.  We'll see how I get on with work.

 

I managed to get in a couple of hours earlier today so that meant I could actually get some paint on the boot corner repair and have time to put all the trims back in.  There's nothing else to do at the back of the car now.

201901-58.jpg

 

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Then I decided the best course of action was to strip the front end down.  I was going to have to take the bumper off anyway to sort out the passenger side, and it was so easy to remove the rest of the panels and lights it would have been daft not to do it all in one go.  Lots of cableties where captive nuts and bolts should be, presumably because the daft captive bolts Citroen used had all pinged off in that way they do.  I found a little extra work to be done in the front crossmember, nothing serious and all easy access stuff.  Overall, it's in pretty good shape.

201901-61.jpg

 

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Next to have a look at the driver's side inner wing.  Dean had warned me it needed work in here, it was on his to do list, so I wasn't surprised to find stuff to do.  More of that white sealant stuff had to be dug out and it revealed a handful of smaller patches required of the usual sort.  The worst bit is on the outer wing side of the inner wing where the suspension sphere sits, a common place for BXs to go and not terribly involved to repair.  Happily, the front lower part of the wing that the bumper slots into is in excellent shape and will provide a perfect pattern for rebuilding the passenger side. Here's some before and after shots.

201901-64.jpg

 

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This had all taken rather longer than you might expect, so I wasn't going to get any welding done today.  Instead, I focused on getting things started on the passenger wing, so the first job was to explore the rusty bits to see what I was dealing with.  The bumper hanger on this side had sat in a modified bit of bracketry wedged into the rust hole, which worked and wasn't done in a way that damaged the bumper or original hanger.  I'll now just be putting it right again with fresh steel.  Thankfully, the reference point for the bumper slot on the leading edge hasn't rotted away so I shouldn't have too much trouble lining the repair piece up in the correct place.  Everything from the suspension point back looks in good shape, there's been at least one reasonable repair made that I don't see any need to redo.

201901-70.jpg

 

201901-71.jpg

 

With things explored, I had enough time to start chopping out the rusty bits.  Almost every piece I need to replace is flat, with excellent access, so this should be about as enjoyable as these jobs get.  I chopped out quite a large square for the piece next to the suspension.  This was so it would be easier to both clean up the inner skin which needs a small patch letting in, and so I could more easily weld in the repair patch which I'll make out of fresh steel.

201901-72.jpg

 

I then started cutting back the rust in the inner arch.  Again, this is a much simpler shape than it first appears since it's essentially a long curved rectangle for the most part and won't be difficult to fabricate.

201901-73.jpg

 

From  inside the engine bay you can get an idea of access a bit better, especially now I've moved the wires out of the way.  The little outrigger type piece under the car is still really solid so I just need to finish trimming out the platform that goes between the headlight and the inner arch where it's rotten so I can let a new square in.  That bit will be a little trickier just because I can't dismantle things further for access, other than that it should be easy enough to repair since it's just another rectangle to go in here with no fussy bends and wiggles.

201901-74.jpg

 

I saved the pieces I cut off for reference, even though I can template from the other side if needed, there's nothing of them I can really use again beyond that.

201901-75.jpg

 

Then it was time to go home.  Car looks a bit forlorn with all the front stripped down.

201901-76.jpg


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#76 OFFLINE   dean36014

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Posted 14 January 2019 - 05:56 PM

Looking good! Looks like it wasn't as rotten as I was expecting. I must admit my heart is in my mouth every time I see an update and pray you don't find anything unexpected. So far it looks straight forward repairs.
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#77 OFFLINE   vulgalour

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Posted 14 January 2019 - 05:57 PM

The only surprise has been that boot hole.  Everything else is as you described it and actually better than I anticipated.



#78 OFFLINE   purplebargeken

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Posted 14 January 2019 - 05:57 PM

Temp forlorn, it will emerge looking bright and radiant again shortly!


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#79 OFFLINE   mat_the_cat

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Posted 14 January 2019 - 09:39 PM

The last one is the LP (IE barely above atmospheric pressure) return from the Height corrector, which is where the fluid comes back if you take a heavy load out of the boot, or put the car in low. It's connected to the Octopus at the front of the car (the rubber return pipes) hence could be changed for 4mm nylon if you chose to do so. Leaving it metal is wise, but if you came up a bit short on metal pipe, this one could be extended with off-cuts of metal pipe joined with rubber hose (diesel injector leak-off pipe works particularly well for this). One of my old BXs had a large section of this pipe replaced with rubber hose, and it was fine.

 

I once had an MOT fail for something like 'unsuitable method of repair' when I spliced in a length of rubber hose. Tried to argue the point, but no joy - comes down to lack of widespread understanding of the system really.

Never actually traced where the rear suspension leak-off returns head off to - do they link into this?


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#80 ONLINE   dollywobbler

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Posted 14 January 2019 - 09:44 PM

Great progress. Looks like it was right on the cusp. Hope all proceeds well.


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#81 OFFLINE   Broadsword

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Posted 14 January 2019 - 09:47 PM

Amazing work on BX rescue, watching with interest!


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#82 OFFLINE   Talbot

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Posted 14 January 2019 - 11:01 PM

Never actually traced where the rear suspension leak-off returns head off to - do they link into this?


I assume so. I've never traced them either!
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#83 OFFLINE   Exiled_Tat_Gatherer

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Posted 15 January 2019 - 09:53 AM

Bloody quick work fella - areas identified and looks like they'll be sorted forthwith. Best of luck with it.

CX Break for me thanks - the only reason I'm on LeBon……

 

Looking forward to the progress on this.


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