Frozen bolt in Fork!

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24 Jul 2012 13:43 - 24 Jul 2012 13:48 #538207 by redgpz
Frozen bolt in Fork! was created by redgpz
Just bought this used bike...and inherited someone's problem along with it. One of the 8mm 1.25 x40 mm allen head bolts was stripped. So I used a Craftsman easy out in a drill, but it is so tight after drilling into it and plunging the tool into the hole I can not budge it. My crescent wrenches are getting furrows dug into them from the case hardened easy out.

All I can imagine to do is heat the area around the bolt..which is aluminum alloy I presume. ANy ideas on heating aluminum? I know it is very easy to warp it. And will heating it affect my fork oil? Perhaps heating a little at a time? I can heat the other side of the stud hole but really don't want to blister the paint on the fork. If I do heat it, what paint can I use to touch it up with? Seems like it is a baked on finish... Any ideas would be appreciated.
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Last edit: 24 Jul 2012 13:48 by redgpz. Reason: add info

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24 Jul 2012 14:05 - 24 Jul 2012 15:10 #538214 by wireman
Replied by wireman on topic Frozen bolt in Fork!
disregard,picture wasnt working earlier. :sick:

posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.
Last edit: 24 Jul 2012 15:10 by wireman.

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24 Jul 2012 14:52 #538229 by redgpz
Replied by redgpz on topic Frozen bolt in Fork!
It is a 1995 Kawasaki GPZ 1100. Fork legs...sounds expensive. I just want to change the tire. :(

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24 Jul 2012 14:59 - 24 Jul 2012 15:05 #538233 by wireman
Replied by wireman on topic Frozen bolt in Fork!
Ok I got your picture to work now,it was all blurry before. :blink:
I was thinking of the older style fork legs.
Can you possibly gain access to an impact to try and loosen it?

I wonder if somebody didnt use red loc-tite on those bolts in the past which usually requires heat to loosen :sick:

posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.
Last edit: 24 Jul 2012 15:05 by wireman.

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24 Jul 2012 15:19 #538238 by wireman
Replied by wireman on topic Frozen bolt in Fork!
If the threads in the fork leg were thrashed to the point somebody had to put red loc-tite on there and force it in you might be better off from a safety stand point to find another set of forks,I just pm'd Brian about your post he might be able to fix you up with a set of forks cheaper than you think.
Suspension/brakes are an area I definately dont suggest cutting corners on B)

posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.

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24 Jul 2012 15:35 #538248 by redgpz
Replied by redgpz on topic Frozen bolt in Fork!
To use an impact is not possible. the bolt sticking out in the pic is and ez out. No place to put an impact.

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24 Jul 2012 15:37 #538251 by wireman
Replied by wireman on topic Frozen bolt in Fork!
Is therev enough of the allen head left to get an allen head socket into to use an impact on? B)

posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.

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24 Jul 2012 15:40 #538253 by wireman
Replied by wireman on topic Frozen bolt in Fork!
Do you have somebody who can weld an allen head socket into whats left of the bolt so you can get an impact on there?
That might get it hot enough where you can shock it loose. B)

posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.

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24 Jul 2012 15:43 #538256 by hobodan
Replied by hobodan on topic Frozen bolt in Fork!
You might try some penetrating oil. Also, you can try using an impact drill with your screw remover. Be sure to wear safety goggles though.

1977 KZ650-B1 frame and engine. Random pile of parts for the rest.

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25 Jul 2012 19:30 #538616 by redgpz
Replied by redgpz on topic Frozen bolt in Fork!
The ez out is stuck in the allen head. AM going to heat it.

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26 Jul 2012 23:48 #538906 by Carr_113
Replied by Carr_113 on topic Frozen bolt in Fork!
I wouldn't advise heating aluminum, for obvious reasons. If all else fails, get a drill and some patience.

'74 Z1-A
'80 KZ750E
'80 GS750E
'81 KZ440
'79 XS650 (needs love)
'72-'73 CB350 (3 or 4, in pieces)

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26 Jul 2012 23:52 #538909 by 650ed
Replied by 650ed on topic Frozen bolt in Fork!
Use Kroil on it for a couple days, then unscrew it. Ed

1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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