Fork Strip Problem

Wheels, shocks, forks, frame
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Garry
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Fork Strip Problem

Post by Garry » Fri Apr 07, 2017 1:38 pm

Dont know if anyone can assist

I am having a problem stripping the 2 sets of forks for the KR1S i am building

I have replaced seals in KR forks before (at least 5/6 times) and have never had a problem undoing the allen screw at the bottom (only with it spinning once loose)

I thought they may be loctited so tried heat with a blow torch but they still wont budge (how hot do you need to get things before loctite breaks down). Can only assume someone has possibly used loctite and/or overtightened - why do people do this :evil:

Just to check i wasn't going mad i had a third set of forks (bent) which look to never to have been touched. Tried this set and the screw moved under
pressure as i would expect.

Anyone got any ideas before i resort to drilling the heads off (may be a big job as they don't appear to be made of the normal cheese) - i dont have access to air tools.

All ideas welcomed :lol:
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SP_BOTT
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Re: Fork Strip Problem

Post by SP_BOTT » Fri Apr 07, 2017 8:06 pm

If you've tried to undo them with the fork and spring assembled loosely, then I'd suggest a quick trip to a garage and an impact gun, or you can shove a wooden broom handle down the tubes, but never tried that myself.

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gangus
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Re: Fork Strip Problem

Post by gangus » Sun Apr 09, 2017 1:37 am

If you already have on apart, find a big arse bolt head that fits into the top of the inner valving tube and make up a long handle to holds the inner tube.
I used a rattle gun, works a treat.

headcoats
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Re: Fork Strip Problem

Post by headcoats » Sun Apr 09, 2017 7:16 pm

I had the same but with some second hand Triumph forks and the previous owner red loctited the bolts in :evil: but I wasn't aware at the time and I tried everything to undo them
Took them to mates who had an impact gun and they came undone in seconds :mrgreen:
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Professor
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Re: Fork Strip Problem

Post by Professor » Sat Jun 03, 2017 11:23 pm

Normal Loctite will need about 160C to melt it, it takes time for the heat to penetrate so be careful. An infrared thermometer is useful

You could also try gently hammering the rod bolt with a length of hex bar to help loosen it?
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Garry
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Re: Fork Strip Problem

Post by Garry » Sun Jun 04, 2017 11:39 am

Yes the people who removed it for me used heat in the end Professor - but it still wasn't easy - they said i would never have removed it.

Just glad it's out :P
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