Technical & Reference Section > Tech and Restoration
Fork thread Die size
ORB:
Well, I had to do a 'repair' at home in a hurry on a Curtis about 2 years ago, I got the grinder and cut 1/4 out of a headset lock nut and threaded it on and off over and over.
It started to go easy, but i figured that this was the nut stretching not the threads being 'cleaned' so i ran the opened nut the the base of the threads and then clamped a set of mole grips on as tight as they would turn. then slowly ran it back with the gas lamps keeping it warm.
took about an hour,
Done.
QUADROPHENIA:
mivvi you mental
I have had the same problem twice now mate, and its a fecker to sort out, they broke 2 dies doing it and said next time it was gonna cost me a fortune and some chocolate, are they the forks you are going to sell me ?
mivvi:
Right, have done a bit of research this morning. Looks like a Die would be very expensive, found a cycle fork thread tool kit for £250! Also like you say, re-cutting threads over weld probably won't work. So (Thanks to stidds) I spoke to Argos in Bristol and they said it was no problem to silver weld the fork and cut new threads. £15 for the job! So I don't think its worth messing around. I will let you all know how it goes cause I did warn Argos that the forks were in a rough state. :D
fatboymal:
Marcus,
Argos are superb, they restore old racing frames (as well as make custom frames), stove-enameling them and then hand pinstriping them. The finish is just amazing. They did my Sunn and my DP, and just could not be faulted.
Highly recommended.
ps missed your post about the DP mini - I have a chrome one being built up for my 4 yr old daughter - must show you when it is finished!
mivvi:
Hi Mal, you staying off here and saving money mate? You got me into this craze in the first place, thought you were a mate, lol. Yea, was up for a mini DP but now on the bottom of the list as other things have come up. Would like to see the pic of yours when its done though. Glad you recommend Argos, will send the forks off to them next week. Nice to hear from you mate. :D
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