I was aggressive and drilled and tapped a pump insert from M10 to M12. Believe it or not there was enough material to make it successful. However, I failed to do enough research for my new pump bolt and it is impossible to find a M12 x 1.25 in stainless. At this point I don't care if it's a hex head or socket cap but I can't find either in stainless...only chitty zinc and the like. If I was patient I could have just helicoiled it and been done (aggggggggggggh!!!!!). My questions are:
1. Is it possible to "repitch" the freshly tapped insert with a same sized tap (M12) but different pitch (1.75 from 1.25)?
2. My drilled hole size was 27/64" which correlates to 10.7mm. The recommended drill size for a M10 helicoil is 10.5mm. Think I could get lucky and throw a M10 helicoil in there now?
3. Would a standard size helicoil be a better option? The recommended drill size is 29/64" for a 7/16 x 14 helicoil. Would this be a better choice instead of the metric option?
http://www.noblefix.com/helicoil/HeliCoil-Drill-Chart.html
4. Cut that biatch outta there and glass a whole new insert in place?
1. Is it possible to "repitch" the freshly tapped insert with a same sized tap (M12) but different pitch (1.75 from 1.25)?
2. My drilled hole size was 27/64" which correlates to 10.7mm. The recommended drill size for a M10 helicoil is 10.5mm. Think I could get lucky and throw a M10 helicoil in there now?
3. Would a standard size helicoil be a better option? The recommended drill size is 29/64" for a 7/16 x 14 helicoil. Would this be a better choice instead of the metric option?
http://www.noblefix.com/helicoil/HeliCoil-Drill-Chart.html
4. Cut that biatch outta there and glass a whole new insert in place?
