I've got a pair of near new Koni shocks, one of them has a stripped thread, I'm able to screw the nut on it, but I can't torque it down to 20ft/lb. At a guess, it's probably holding 10ft/lb, I'm wondering if I can just weld the nut onto it. I'm assuming the 20ft/lb figure is not only to make sure the nut is on tightly, but also to stop the nut from loosening itself, so I imagine 10ft/lb and then welding the nut on would be OK too, but I'd appreciate some opinions on that.
tonyrockyhorror,
Feb 9, 4:02am
How long is the thread and how much is 'stripped'! Could you pack it off with washers to an unstripped section and get the required torque!
ryans,
Feb 9, 4:58am
No, it's all damaged, it's long enough for 3 nuts, I tried putting a 3rd one on there, but couldn't torque that either.
pollymay,
Feb 9, 5:09am
Shafts are probably pretty hard but you might get away with a step down die nut of the same thread pitch and rethreading it. I wouldn't weld it and if it can't hold torque you don't want the shaft to strip through the nut letting the shock out the bottom.
phalanax,
Feb 9, 7:23am
Easiest way. weld it.at least you know it aint gonna strip away.you could pack it with slotted washers put vice versa and welded as well.otherwise try rethreading all the way. might be a big failure.might work depends how tempered the metal is .otherwise bin it.lol
phalanax,
Feb 9, 7:23am
Easiest way. weld itifthey are rear top.at least you know it aint gonna strip away.you could pack it withslotted washers put vice versa and welded as well.otherwise try rethreading all the way. might be a big failure.might work depends how tempered the metal is .otherwise bin it if they are fronts and dont rethread.not worth dying for.lol
owene,
Feb 9, 8:15am
Bend it over with a big hammer then it can't fall out.
ryans,
Feb 9, 9:58am
Thanks for the replies. It's an M10 x 1.0, by step down die nut, did you mean going to an M8! Assuming that's what it is, that's quite a reduction in size.
It's rear lower, I've got easy access all around the bolt, so can weld it quite thoroughly.
ryans,
Feb 9, 10:11am
I just had a thought, I could cut it to 3/8ths imperial. M10 is apparently 0.394 inches and a 3/8th is 0.375 inches. I have an imperial tap and die kit too.
owene,
Feb 9, 10:42am
How will you get the next WOF with a welded shockie bolt!
ryans,
Feb 9, 10:47am
That's why I'm asking this question instead of just doing it.
pollymay,
Feb 9, 2:47pm
I meant the next size down die nut like M9 or whatever, the 3/8 might work perfect if you can pick a closeish thread pitch. Or fail horribly, not my shock to ruin though lolol.
owene,
Feb 9, 6:48pm
The answer is replace the shockie. I doubt that a WOF inspector (if he saw it) would pass ANY mods to this esp if it weakened the thing by eg re-threading in a smaller size. Welding would definately be a fail. There are those that will argue with me on this but let's hear the view of a WOF inspector. any out there!
tonyrockyhorror,
Feb 9, 9:21pm
LOL good luck finding a nut for that!
purple666,
Feb 9, 10:09pm
Peugeot probably do them, had a very odd size one on my marine engine, maybe 7mm from memory
budgel,
Feb 9, 10:35pm
Try the 3/8 method first.
drew2009,
Feb 10, 12:11am
Is there a way you can get the whole stud out or drill it out and just weld a new piece of threaded rod in there! You could also try brazing up the bits of thread that are stripped and re cutting the same size thread.
owene,
Feb 10, 1:25am
By the time you got sufficient heat onto the rod the weld/braze it, the internals of the shickie will be shagged. No WOF person would wear it.
ryans,
Feb 10, 8:24am
Thanks for the replies. I've re-threaded it with 3/8 - 24, same thread pitch and only very slightly smaller, something like 9.98mm (M10) to 9.52mm for the 3/8th. I was able to torque it up to 20 ft/lb and all is well.
bubbles244,
Feb 10, 8:27am
your on to it
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