I have a stripped thread on a caliper carrier (aluminium) and used an M10 helicoil kit to repair it Drilled it Threaded new coil However it is too tight for the M10 bolt The M10 tap runs fine through the coil though It is as if the coil is too tight, not set in the thread properly Any more experienced guys have any input or advice
Is the bolt you’re using the one that stripped the calliper carrier? Could be it’s covered with the aluminium that it took off Run it through a die and it should clean up
Red Thunder M10 can come in various pitches and I don't know what your engineering depth is just in case I'm telling you how to suck eggs! The common ones are M10 x1.0 for brake pipes, M10 x 1.25 for some oddball fasteners and M10 x 1.50 is the common standard bolt. For reference if you haven't got any gauges; Normal bolts M6 = 1.0 pitch M8 = 1.25 M10 = 1.50 Pick a bolt with best guess pitch and offer it parallel to your bolt in question, does it exactly interlock with the peaks and troughs?
Sorry for the delayed reply Bolt is brand new, not using the old ones Pitch is a perfect match to the tap I will double check in the morning as I have two taps, the one that came with the Helicoil kit and one from a tap set It is possible the taps are a different pitch and i could have checked against the wrong one as I had both out This is for my project bike a Yamaha Fazer 600 from 2001so if it goes tits up it isn't the end of the world and I can get a replacement carrier off eBay for a couple of quid Thanks all for your replies of course
It does start to go in and suddenly tighten so you could be right and used wrong pitch Then like an idiot I checked against a different tap and thought it is alright Will see
