Use of heat to free up rusted on and stubborn nuts
Discussion
OK, I see what you mean, I missed the bit about the Allen bolt head.
I have a set of these, the amount of force that can be put onto the outside of recalcitrant Allen bolt heads with them is astonishing.
http://www.ebay.co.uk/itm/Bahco-1410-Pipe-Wrench-3...
Obviously, they would need replacing afterwards though.
I have a set of these, the amount of force that can be put onto the outside of recalcitrant Allen bolt heads with them is astonishing.
http://www.ebay.co.uk/itm/Bahco-1410-Pipe-Wrench-3...
Obviously, they would need replacing afterwards though.
Edited by E-bmw on Wednesday 16th December 09:32
Pumaracing said:
This is a great link, I'd lost it - thanks for sticking back up again 
Looking at the photo on the first page I suspect that the problem is corrosion that has got into the split lines on the self locking nuts. If belting seven types of merry hell out of the heads of the allen bolts doesn't work then get an angle grinder with a thin 1mm disc on it and cut off just the split portion of the nuts and the section of bolt that's inside those leaving the hex part of the nuts in situ. The rest of the threads should be corrosion free and ought to undo easily. The nuts and bolts will be stock items at any decent fastener supplier. Replace with grade 12.8 allen bolts and grade 8.8 self locking nuts.
Pumaracing said:
Looking at the photo on the first page I suspect that the problem is corrosion that has got into the split lines on the self locking nuts. If belting seven types of merry hell out of the heads of the allen bolts doesn't work then get an angle grinder with a thin 1mm disc on it and cut off just the split portion of the nuts and the section of bolt that's inside those leaving the hex part of the nuts in situ. The rest of the threads should be corrosion free and ought to undo easily. The nuts and bolts will be stock items at any decent fastener supplier. Replace with grade 12.8 allen bolts and grade 8.8 self locking nuts.
Thanks - very clear info.After my initial foray into releasing the these bolts, I have attended to other issues such as rebuilding the steering rack and completely stripping the front suspension.
The decks are now clear & I will be having a crack at the rear suspension over the Christmas holiday.
Cutting the nuts off will be my back stop - but I suspect I may come to this conclusion very quickly.
Edited by Andy 308GTB on Sunday 20th December 08:17
Just a final note. I'd use nyloc nuts on the rebuild rather than those split things the factory fitted. The nice thing about nylocs is the nylon insert keeps corrosion out of the threads and if you lightly grease the bolts before fitting they'll undo as easily as the day they were fitted more or less ad infinitum.
Pumaracing said:
I can't make that link work no matter how I do it??Or am I due a parrot
Pumaracing said:
Just a final note. I'd use nyloc nuts on the rebuild rather than those split things the factory fitted. The nice thing about nylocs is the nylon insert keeps corrosion out of the threads and if you lightly grease the bolts before fitting they'll undo as easily as the day they were fitted more or less ad infinitum.
Also grease the threaded section that sticks proud after tightening, as that will now be wiped free of grease bt=y the nylon insert & that is the bit that will now rust & make removal harder next time.The Angle Grinder won!
I umm'ed and aah'ed for days, avoiding the decision by getting on with other jobs.
But in the end, 15 minutes was all it took and I was able to release the bolts with a modest tug of the breaker bar.
Replacement bolts (I will need 24 in total) sum up the Ferrari spares market:
Usual suspects £3.95 or £2.95 per bolt (+P&P +VAT)
A little work on the internet yielded 30 bolts for £24 delivered...
I know the specialists provide a fantastic service and keep these cars on the road. Whenever I can, I do try to deal with them but there is a limit
I umm'ed and aah'ed for days, avoiding the decision by getting on with other jobs.
But in the end, 15 minutes was all it took and I was able to release the bolts with a modest tug of the breaker bar.
Replacement bolts (I will need 24 in total) sum up the Ferrari spares market:
Usual suspects £3.95 or £2.95 per bolt (+P&P +VAT)
A little work on the internet yielded 30 bolts for £24 delivered...
I know the specialists provide a fantastic service and keep these cars on the road. Whenever I can, I do try to deal with them but there is a limit
Andy 308GTB said:
The Angle Grinder won!
I umm'ed and aah'ed for days, avoiding the decision by getting on with other jobs.
But in the end, 15 minutes was all it took and I was able to release the bolts with a modest tug of the breaker bar.
Replacement bolts (I will need 24 in total) sum up the Ferrari spares market:
Usual suspects £3.95 or £2.95 per bolt (+P&P +VAT)
A little work on the internet yielded 30 bolts for £24 delivered...
I know the specialists provide a fantastic service and keep these cars on the road. Whenever I can, I do try to deal with them but there is a limit
And £4.56 + VAT if you wanted to use the original type nuts I was glad I was sitting down when I saw the prices in the superformance link.I umm'ed and aah'ed for days, avoiding the decision by getting on with other jobs.
But in the end, 15 minutes was all it took and I was able to release the bolts with a modest tug of the breaker bar.
Replacement bolts (I will need 24 in total) sum up the Ferrari spares market:
Usual suspects £3.95 or £2.95 per bolt (+P&P +VAT)
A little work on the internet yielded 30 bolts for £24 delivered...
I know the specialists provide a fantastic service and keep these cars on the road. Whenever I can, I do try to deal with them but there is a limit
Gassing Station | Home Mechanics | Top of Page | What's New | My Stuff