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Hi from Steve and a question about a spring (7 replies)

Steve Hills
5 months ago
Steve Hills 5 months ago

Hi everyone,

I'm Steve. I Used to be an MCR member for many years going back to the late 1980's and early 90's and for a while looked after the Herts and North London region. Some of you may remember me from way back.

My car got locked away in a garage for best part of 20 years while a hectic life took me in other directions. However, at last I've finally got around to re-building my old MkII Cooper S and have returned to the MCR. My car was as featured in the magazine last December in Nick Hunter's MKII S piece.

By the way, does anyone know where the compression spring goes in relation to the hydrolastic suspension system on the back of a hydro car? I didn't find them on the dismantaling of the car but have noticed it features in the various sales diagrammes, Mini Spares etc. Anyone know what it's for and where it goes?

Cheers

Steve

Tony S
5 months ago
Tony S 5 months ago

Steve, are we talking about the helper springs from the radius arm to the wheel arch or the little springs that are sometimes found between the displacer and the long strut?  I have heard that the latter was not always fitted.

Oh, by the way welcome back!

 

Steve Hills
5 months ago
Steve Hills 5 months ago

Hi Tony,

Thanks for your reply. They're not the helper springs but they're the small compression springs that feature in the attached diagram. Part number 49.

Sounds like the spring you suggest that might be fitted between the displacer and strut. I first took it apart a long time ago in 1985 and remember then that there was no sign of a spring. Either they were never fitted or maybe when the rear subframe was replaced, long before I had the car, they weren't put back.

It's a 1969 MKII Cooper S. Maybe they had stopped putting them in by then? The question is, now that I'm doing a complete rebuild, should I include the springs or not? There's an interesting conundrum...

Steve

Steve Hills
5 months ago
Steve Hills 5 months ago

Opps, didn't attach the diagram. See part 49 in the diagram below.

https://www.minicooper.org/wp-content/uploads/2019/03/Mini-rear-hydro-parts-1.png

Steve

John-B
5 months ago
John-B 5 months ago

Hi Steve

If it helps, my 'S' was built in June 69 and the strut springs are in the rear displacers.

J

 

 

 

 

Steve Hills
5 months ago
Steve Hills 5 months ago

Thanks John for your help. Looks like the springs should be there and were lost before I got the car in 1985. Do the springs go inside the hole in the aluminium casting that's part of the displacer? Then the rod, part 48 in my diagram, pushes against it when it's assembled? I can't find any diagrams that show where it lives.

Cheers,

Steve

Steve

John-B
4 months ago
John-B 4 months ago

Hi Steve

It's the short dowel first into the displacer, then the spring, then the strut which pushes against the spring.

See attached diagram showing the line order of the the parts.

I don't think the springs are available any longer but you should be able to find a pair from someone who has converted to dry suspension.

J

https://www.minicooper.org/wp-content/uploads/2019/04/Hydro-Mini-rear-suspension.jpg
Steve Hills
4 months ago
Steve Hills 4 months ago

Ahh, I see. Brilliant, thanks. The diagram says it all. All the diagrams I've seen until now have shown the spring randomly floating above everything else. Now I can see how it should go together. It's very possible that the springs are still inside the strut and I've never found them.

The dowels are rusted in position and were probably like that when I originally took it all apart 34 years ago. Not knowing back then that there should have been a spring I thought the dowel was in a fixed position. I must have driven the car around like that for years and never known.

I'll take it all apart, which is proving to be a challenge but getting there.

Steve

Steve

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