drilling out a seat pin bolt?

[daysnways]

Re:

sorry i made the front facing bit up, its rear facing and there is gap enough for a blade just about, i'll try other methods prior to that though.

 

[Midlife]

Just out of curiosity what make of frame is it?

Shaun

 

[daysnways]

Re:

Knight - Wolverhampton

metal surrounding the actual bolt seems incredibly thin and slightly corroded?

 

[Jonny69]

You've definitely tried imperial Allen keys? My Bob Jackson from that era had an imperial bolt. I think it was 3/16" which is between 4.5mm and 5mm, so no metric hex key will fit.

 

[mj3200]

Re:

Looking at that problem, and assuming the plusgas and oversize keys have been tried I'd use a 1mm cutting disk. Even if you loose a tiny bit of the clamp material it won't matter too much IMHO.

 

[Midlife]

But if you cut through the bolt then surely this will still leave the threaded part jammed in?

Shaun

 

[predki]

+1 for imperial allen key, about £3 at nearest Hombase, my Mercian has imperial bolt

 

[mj3200]

Re:

On all my frames bar my Pinarello, which has a threaded seat lug, the bolts are the Campag type so if it were cut it would come out in two pieces on either side of the seat cluster.

Look before you leap

 

[Rampage]

Re: Re:

On all my frames bar my Pinarello, which has a threaded seat lug, the bolts are the Campag type so if it were cut it would come out in two pieces on either side of the seat cluster.

Look before you leap

This, what does it look like on the other side?

 

[Midlife]

Doesn't look like one of these.......

Unfortunately..........

Shaun