Technical & Reference Section > Tech and Restoration

How do I get seized bolts out?

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losidan:
hi,

One of my crank arms is stuck on as the bolt which holds it onto the bb axle is seized solid.....

Does anyone have any tips on how I can get the blighter out?

Thanks
Dan

ORB:
what kind of cranks are they?

This will give me a better idea as to what we are against.

Do you have a pic?

oberonspacefruit:
liquid wrench-plusgas.

losidan:
They are redline flights...It is the single bolt which threads into the BB axle

I dont even know what liquid wrench is  :uglystupid2:

kuwahero:
are you using the right allen key as flights are imperial ie in inches.

spray it with loads of wd40 leave 15mins and do again. then get the right sized allen key and ring spanner or an old seatpost. place the ring spanner  or seat post over the end of the allen key as a lever and it should come off without to much trouble. if you have allen key bits for a socket set even better.

if they arent allen key bolts, which they should be use the right size socket with the ratchet spanner and the post on end as extra leverage

marc :daumenhoch:

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