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[Nick W]

It also occurs to me that if we cut two pairs of readily available solid-disc pins into correctly calculated long and short pieces, and then Tig welded them back together there would be four pins the correct length. Which would cost a bit more, but would at least look right compared to the knurled/crossdrill&R-clip/O-ring/other-easy-to-make retention method. It would also be much quicker to do

[Nick W]

It also occurs to me that if we cut two pairs of readily available solid-disc pins into correctly calculated long and short pieces, and then Tig welded them back together there would be four pins the correct length. Which would cost a bit more, but would at least look right compared to the knurled/crossdrill&R-clip/O-ring/other-easy-to-make retention method. It would also be much quicker to do

This goes to show that BAD** isn't a good idea, as that would require 8pins to make 4 longer ones. But cutting 4(a car set) in half and welding a piece of 6mm rod between is a workable method. And cheap.




**BAD - Beer Aided Development

[robson]

I am glad I got you thinking. Now we have to think about the clips. Do any other car maker have a similar system but at a better price. I also wonder if Opel charge the same price as GM. Do we have any friends in Germany.

[Steve B]

I am glad I got you thinking. Now we have to think about the clips. Do any other car maker have a similar system but at a better price. I also wonder if Opel charge the same price as GM. Do we have any friends in Germany.

Nic mentioned yhis stuff once   

https://www.google.co.uk/search?q=steel+banding&biw=1440&bih=766&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjRhInlhr_OAhVELMAKHW8HB-AQ_AUIBygC#imgrc=_

[Nick W]

I am glad I got you thinking. Now we have to think about the clips. Do any other car maker have a similar system but at a better price. I also wonder if Opel charge the same price as GM. Do we have any friends in Germany.

Nic mentioned yhis stuff once   

https://www.google.co.uk/search?q=steel+banding&biw=1440&bih=766&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjRhInlhr_OAhVELMAKHW8HB-AQ_AUIBygC#imgrc=_

Yes, that's what I was thinking of. But anyone who receives heavy stuff on pallets throws long lengths of it away, so it shouldn't be hard to find a couple of metres for nothing. A little shaping and a pop-rivet or spot weld and you're done.

[Steve B]

Or if you want a heavy duty spring then just strip your rear blind machanism 

[Nick W]

Or if you want a heavy duty spring then just strip your rear blind machanism 

Mine's an estate. No blind. Not unless I drink far too much cognac.

[biggriffin]

Omega rear caliper's are a girling unit, similar were fitted to a lot of other cars, Mercedes being one of them, using the same type of fixings.

[robson]

Back to the pins Nick whats wrong with a pin made from rod with a reduced dia at one end and a hole to put a "hair pin R " for retention.

[biggriffin]

Back to the pins Nick whats wrong with a pin made from rod with a reduced dia at one end and a hole to put a "hair pin R " for retention.

Mercedes use that system.

[Nick W]

Back to the pins Nick whats wrong with a pin made from rod with a reduced dia at one end and a hole to put a "hair pin R " for retention.

Nothing, there are millions of Girling calipers that are retained like that. I suggest a heavy knurl because the part is already in the lathe and it's easy to do. Cross drilling a small diameter is a pain, and requires a second setup however you do it.