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Clementine the Cat
 
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Réparateur d'automobiles

Citroën SM: the hardest restoration I've ever done

Messages
409
#1
Hi everybody,

I'm Still owner of many R4, with my girlfriend we have 4: three GTL and one F4, but these last years I stopped working on them, I bought others cars for my collection: Peugeot 304, Citroën DS and the last one: a Citroën SM. Since I tasted the hydraulic suspension on the DS I knew some day I would have a SM, hydraulic suspension + V6 Maserati... waouh !

I bought it about one year ago:
018 Arrivée 16 mai.JPG

021 Recul Sprinter.JPG

036 Arrivée.JPG

037 Recul.JPG

039 Côté gauche.JPG

042 Treuil 2.JPG

044 Trois-quart avant.JPG

Even I knew the engine is not blocked, it didn't work at this time, I'm definitively completly mad !!!
 

malcolm

& Clementine the Cat
Staff member
Messages
4,083
Location
Bedford UK
#2
I love the Citroen SM, but it must be the highest maintenance classic car it is possible to own with the complicated suspension and engine. Do they rust much?

Do post some pictures so we can see how you are getting along.
 

angel

Enthusiast
Messages
1,832
Location
Athens, Greece
#3
Very challenging car - I haven't worked on an SM yet but did some repairs on a DS once and was fascinated by how complicated but technically advanced it was, down to the smallest detail. Keep us informed!
 
Messages
409
#4
I bought a model built in may 1972, it has still the three carburettors, I didn't want an injection model, really too difficult for me !

The car was parked in my garage since may, and since the beginning of december 2015 I started to dismantle the front of the car. I finally decided not to try to make the engine running, afraid of breaking parts like valves or timing chain. I don't know what maintenance has been done on the car, so I choose to be prudent.

I took about 530 photos since the beginning of disassembly, these sort of Citroëns are made with a lot of bolts, spacers, nuts, screws... it's terribly complicated for every part I want to remove.

539 Etat des lieux 13-02-2016.JPG
540 Unit côté D.JPG
541 Unit côté G.JPG

Almost all the hydraulic hoses have been removed, it's a real labyrinth and actually I don't really if I will be able to fit them back in the car and make the system run properly...

The car is in very good condition, there is only light rust at some little places, but nothing serious, and fortunatly no rust holes anywhere. I've been heard the SM were better than the DS concerning rust, and looking at mine, it's true :)

I want to remove all the hoses to have access to the front "unit" (= subframe) and side rails, then I will sand, protect and paint them with the genuine color: AC092 for the unit, and AC318 for the body.
 

petak

Enthusiast
Messages
1,335
Location
Vodice, Croatia
#5
You find your self entertainment.
Difficult one.

SM is one of icons of oldtimer cars.

inform us about progress from time to time.....would like to see how this is going to end.
 

Snoopy1974

Enthusiast
Messages
409
#7
Hi everybody,

just few photos to show you the kind of job I have on a car like the SM...

Here is the unit just after removing the engine, a real pleasure to have to clean such a thing:



The hydraulic system on a 70's Citroën it looks like that:




Rack, pinion, and all the hydraulic hoses:


Front calipers and hoses:


Engine and gearbox:
 

JonathanT

Not normal for Norfolk
Messages
1,184
Location
Wymondham Norfolk
#8
Hats off to you Snoopy. It's a beautiful car Elegant lines with an inelegant beast under the bonnet no doubt. I wish you all the best and will follow your thread. For me just looking at the work involved is exhausting!
 
Messages
409
#10
Hi, last week I applied a primer on the front of the car and the side rails, seeing the car in a clear color like that is motivating, but now I have to do the same on the rear underneath of the car...
767 Vue générale.JPG

766 Intérieur unit.JPG

768 Zoom longeron droit.JPG
 

Snoopy1974

Enthusiast
Messages
409
#12
Update...
895 Camouflage retiré.jpg
899 Passage de roue D n°2.JPG
902 Arrière aile G.JPG
907 Avant longeron G.JPG

All of the underneath has been painted, with AC 092 "Gris brumaire", and AC 318 "Sable métallisé", my own paintjob is finished, the exterior of the body will be painted by a profesional.
 
Messages
409
#13
Hi, over 2 years ago the car isn't still finished, this kind of restoration is hard and sometimes discouraging. I think I will drive the car during 2019 spring if I haven't bad surprise before the end.

The most important new of these last months is that the engine runs :laughing::laughing::laughing: After spending many months to reassemble all the parts (and on a SM there are MANY parts :whistle::whistle:

Here are 3 videos since the beginning until the last weeks, do not hesitate to post a comment ;);)



 

petak

Enthusiast
Messages
1,335
Location
Vodice, Croatia
#15
I was just thinking about you few days back and your plastic front wheel arches.
And then wondering what happened to this project.

I am really happy that is still alive (project)
Keep up and post more pictures.
To me it is really interesting job you are doing.
 

JdeW

Enthusiast
Messages
430
Location
Laarbeek The Netherlands
#16
IMPRESSIVE!!! That's a massive restoration, a joy for the eye to see the car is coming back in it's full glory.
Very well done so far :clapping:and keep it up.
Regards, Joop
 
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