Technical & Reference Section > Tech and Restoration

Removing a rounded stem bolt.

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thesku11s:

Hello there,

picked up this bike a week ago,

Thought it'd take a couple of hours to get going, but it keeps taunting me!

First I broke a spanner trying to get the siezed pedals off, (eventually did it woth some improvisation)

Now I realise the stem  is a mile high and the bolt completley rounded off!

Was wondering what the best way to get it out is,

- obviously its in there pretty tight (as the pedals were)

I could saw a slit in it, then use a screwdriver the unsrew it?

I could drill a smal hole sideways through the bolt, then push a spoke through to try and turn it?

I could saw the whole head off, and try and knock the bolt out altogether?

What would be best, any other suggestions welcome.

bmx xxx:
mull grips, or a plumbers grips, as already fcuked doesnt matter as long as get it out, good luck got some spaners for sale? gary

rob:
remove the stem top and use mole grips

thesku11s:
I dont know what mole grips are, but I have tried locking pliers, and plumbers ratchet type things.

Its gonna require cutting of some fashion, but just not sure which way would be best.

I could even file some flat edges to the bolt, so the I could use a spanner to get it out?

login_user:
Have the forks got a drain hole underneath the stearer tube,if so turn the bike over and spray wd40 into the hole and leave to soak for a couple of hours.Then turn the bike back up and get some mole grips(locking pliers) on the screw head and try working it backwards and forwards,try tighten it first then untightening it. hopefully it should work loose.  :daumenhoch:

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