Thread: tech query

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on blocks and heads if i weld i open up the hole like a funnel with a bur bit but most all the time i like to use a insert that fitment is not a eschew with them as they can be set in flush. they called Timeserts there by far i feel the best inserts out there. i used and tried all of them. most car companys recommed Timeserts to fix bad threads . you did not say what metal it was if steel not to big of a deal to weld up but aluminum were if you weld you loose your heat treat like say T6 so if like a 3000 grade you end up with a weak fix but on a 4m hole that may not come in to play. when you get past m10 to 3/8 you better watch how you fix it . i have had not a class fit but still had a good thead pitch were the root of the thread s where still there were i used JB weld had good luck or 620 locktie with primer . not shure i would trust a cold epoxy fix it on a threaded hole that was strip out .any time you use a thread locker you want the sealer / thread locker on the non load bearing pitch of the thread or bad things can happen. so you run the fastener up to torque when sealer /locker is still wet .if part needs to come off many times the 620 or jb weld is not things to used less you do not care about making any new friends ...short of a nuke blast or very hi heat its not going any were