Dec Whiteoak Posted July 11, 2011 Report Share Posted July 11, 2011 hi, two weeks ago i stripped the threads out of the magura mounts,i did a quick fix by putting the next size up bolts in,5mm head ones,now i have bought a m5 helicoil kit im just waiting for it to be delivered and i was think will the coil still fit in since the hole is slightly bigger? cheers Quote Link to comment Share on other sites More sharing options...
davidbarr Posted July 11, 2011 Report Share Posted July 11, 2011 hi, two weeks ago i stripped the threads out of the magura mounts,i did a quick fix by putting the next size up bolts in,5mm head ones,now i have bought a m5 helicoil kit im just waiting for it to be delivered and i was think will the coil still fit in since the hole is slightly bigger? cheers So you put an m6 bolt in? How did you manage that? Did you tap it out to m6? Quote Link to comment Share on other sites More sharing options...
Dec Whiteoak Posted July 11, 2011 Author Report Share Posted July 11, 2011 yes but will the m5 coil fit in still as the coils are quite thick arnt they? Quote Link to comment Share on other sites More sharing options...
AdamR28 Posted July 11, 2011 Report Share Posted July 11, 2011 yes but will the m5 coil fit in still No, you have increased the thread pitch by tapping out to M6. Quote Link to comment Share on other sites More sharing options...
Dec Whiteoak Posted July 11, 2011 Author Report Share Posted July 11, 2011 ok cheers Quote Link to comment Share on other sites More sharing options...
Kieran Morrison Posted July 11, 2011 Report Share Posted July 11, 2011 No, you have increased the thread pitch by tapping out to M6. Dont the helicoils just twist onto the m6 threads? when i helicoiled mine i had to tap to m6 first Quote Link to comment Share on other sites More sharing options...
Revolver Posted July 11, 2011 Report Share Posted July 11, 2011 It was revealed in another thread that the tap you get in a helicoil kit isn't actually M6, it's somewhere in between. Quote Link to comment Share on other sites More sharing options...
AdamR28 Posted July 11, 2011 Report Share Posted July 11, 2011 Dont the helicoils just twist onto the m6 threads? Yes, but then you have an M5 x 1.0 thread, for which you might struggle to find a bolt... M6 bolt is 1.0 pitch, M5 bolt is 0.8 pitch (standard bike threads). Quote Link to comment Share on other sites More sharing options...
Dec Whiteoak Posted July 11, 2011 Author Report Share Posted July 11, 2011 is there any way that i could fill the whole and re drill it to correct size? Quote Link to comment Share on other sites More sharing options...
davidbarr Posted July 11, 2011 Report Share Posted July 11, 2011 is there any way that i could fill the whole and re drill it to correct size? Why don't you just continue using m6 bolts since you tapped it to m6? Or even better, helicoil it to m6 and have less chance of stripping the threads again. Quote Link to comment Share on other sites More sharing options...
robintrial Posted July 11, 2011 Report Share Posted July 11, 2011 i did this the other day and the drill for the M5 is a 5.2mm the tap is not M6x1.0 but M6x0.8 becouse the M5 has a pich of 0.8mm if tou strip threads you should helicoil it at the moment, I'm afraid u need to keep the M6 and DON'T put the helicoil in the M6hole you taped it wil fit but you wouldn't be abel to fit a boult in it Quote Link to comment Share on other sites More sharing options...
Dec Whiteoak Posted July 11, 2011 Author Report Share Posted July 11, 2011 yes but can i fill the hole with weld and start again with the tap supplied with the kit? Quote Link to comment Share on other sites More sharing options...
Dec Whiteoak Posted July 11, 2011 Author Report Share Posted July 11, 2011 would this work if i filled the mount hole with it and started from scratch? http://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_199433_langId_-1_categoryId_165691#dtab Quote Link to comment Share on other sites More sharing options...
JD™ Posted July 11, 2011 Report Share Posted July 11, 2011 Just keep using the M6 bolts, simple.. Quote Link to comment Share on other sites More sharing options...
Dec Whiteoak Posted July 11, 2011 Author Report Share Posted July 11, 2011 Just keep using the M6 bolts, simple.. NO BECAUSE I WANT TO USE M5 BOLTS,THEY SIT BETTER IN THE MOUNTS! Quote Link to comment Share on other sites More sharing options...
JD™ Posted July 11, 2011 Report Share Posted July 11, 2011 NO BECAUSE I WANT TO USE M5 BOLTS,THEY SIT BETTER IN THE MOUNTS! Lol. Chill out... You've made a mistake, live with it. No, filling the hole with weld and then tapping it out wont be a good option. File down the heads of the M6 bolts or buy some with smaller heads, rather than thinking of elaborate bodges. Quote Link to comment Share on other sites More sharing options...
Dec Whiteoak Posted July 11, 2011 Author Report Share Posted July 11, 2011 not really a bodge is it and ive already bought the heli coil kit. Quote Link to comment Share on other sites More sharing options...
JD™ Posted July 11, 2011 Report Share Posted July 11, 2011 not really a bodge is it and ive already bought the heli coil kit. Filling a hole with weld and then tapping it out again, not a bodge? Good luck - considering that you posted here looking for advice and then you're just deciding to ignore it, you'll need it. Quote Link to comment Share on other sites More sharing options...
Revolver Posted July 11, 2011 Report Share Posted July 11, 2011 Alu frame. Welding an alu frame makes it brittle. Don't do it unless you have to. Chemical metal might work, but legend has it it's pretty hard, so you might not be able to drill or tap it. So, looking at that, your option is - leave it at M6, find some way to put up with it. Quote Link to comment Share on other sites More sharing options...
Dec Whiteoak Posted July 11, 2011 Author Report Share Posted July 11, 2011 Alu frame. Welding an alu frame makes it brittle. Don't do it unless you have to. Chemical metal might work, but legend has it it's pretty hard, so you might not be able to drill or tap it. So, looking at that, your option is - leave it at M6, find some way to put up with it. ok thanks,but the chemical metal that i put the link up of says it can be drilled,tapped so im going to give this a go and see what happens,like you said it is pretty strong Quote Link to comment Share on other sites More sharing options...
robintrial Posted July 11, 2011 Report Share Posted July 11, 2011 the best thing to do is just make an M6 bolt out of alu or steel and use loctite to make sure it will sit there for life saw of your homemade bolt and level it with the mount drill in the center of the bolt and tap it's the best alternative i could come up with, i hope you get wath i mean sorry for my english thanks robin Quote Link to comment Share on other sites More sharing options...
Dec Whiteoak Posted July 12, 2011 Author Report Share Posted July 12, 2011 the best thing to do is just make an M6 bolt out of alu or steel and use loctite to make sure it will sit there for life saw of your homemade bolt and level it with the mount drill in the center of the bolt and tap it's the best alternative i could come up with, i hope you get wath i mean sorry for my english thanks robin cheers and yeah it makes sense thanks alot,might give that a go. Quote Link to comment Share on other sites More sharing options...
AdamR28 Posted July 12, 2011 Report Share Posted July 12, 2011 I think you might struggle to drill down the centre of a bolt. Best bet is to use M6 bolts... Quote Link to comment Share on other sites More sharing options...
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