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Rear Subframe to heel board threads
Posted: Tue Sep 08, 2020 10:46 pm
by AndyPen
Did these always stay the same? Mine were welded in 30 years ago and the bolts I have have feel a little too reluctant to my mind.
But were they all the same, as I can chase the threads with a tap and try again?? What size (s) please folks???
Re: Rear Subframe to heel board threads
Posted: Tue Sep 08, 2020 11:34 pm
by cpr1
Think they should be 5/16 UNf
Re: Rear Subframe to heel board threads
Posted: Wed Sep 09, 2020 8:00 am
by woodypup59
Indeed they should be 5/16 UNF, but we often find an 8mm bolt (or even worse studding) rammed in there !
Re: Rear Subframe to heel board threads
Posted: Wed Sep 09, 2020 10:26 am
by InnoCooperExport
Mine had been replaced with M8 threads. Had to spend quite some time finding some 12.9 rated m8 bolts!
Re: Rear Subframe to heel board threads
Posted: Wed Sep 09, 2020 8:50 pm
by AndyPen
Its new metal put in a long time back so I'll try the M8 just to see, but hope that they were the genuine BMC ones as that's what I was led to believe back then
Thanks for all the info folks
Re: Rear Subframe to heel board threads
Posted: Thu Sep 10, 2020 8:59 pm
by InnoCooperExport
Worth trying m8 as at some point I think all repair panels were metric...