Spring damage

Ok, I had to cut the springs out of my old set of forks as they were that bent! ... I tried to be as careful as possible, but unfortunately I did nick one of the springs in 2 places ...

From what you can see, do you think it will cause any problems??

nick 1


nick 2

[husky03]

wouldn't chance that one mate-you'll know better than most "what could happen" if the front end went on you(meaning with your track experience).
husky

Is it worth the risk, how much would they cost to replace?

[yorkie_chris]

Well there will definately be stress concentration around the cuts, which could lead to the springs work hardening and snapping, which would not be good.

Also that looks a lot like an angle grinder cut, in which case the heat produced could have caused the steel to temper further, again leading to risk of fracture, or simply them sagging to below useable length.

I would definitely not chance that, I work in engineering and although a small nick or chip may seem insignificant it can manifest itself in a break or fracture with relatively small forces applied.

Ok, so I won't use that one ... I managed to get the other one out without injury .... so i only need one stock curvy spring ... anyone got one they don't want?!?!?

[21QUEST]

Blue, got PM. Got a pair. P+P plus donation(you can do that yourself) for the '.org' .


Cheers
Ben

If the damage is less than 10% of the thickness of the spring after you have blended out the nick to reduce 'stress-raisers' you should be o.k, if not then replace. s'good enough rule for helicopters...!

Er, same happened to me when I swapped bent forks, I've been riding for 9 months now with no problems on springs with one nick like your first one! Oh well! Seems ok for me.

Originally Posted by 21QUEST

Blue, got PM. Got a pair. P+P plus donation(you can do that yourself) for the '.org' .


Cheers
Ben

Thankyou for your kind offer, but you know what ... I think I am going to run it ...

I mean what would happen if it failed/snapped!?!? … as the springs have nowhere to go, surely it’d make little difference if it was in one bit or two?

I can see it might spiral up over time, but not that it would suddenly lock or collapse???