FIX stripped bolt hole threads the POOR MANS WAY

today we're gonna see if we can repair strip threads with j-b weld let's find it out keep watching so here we got a piece of cast aluminum that I have intentionally stripped out some threads so obviously one of the better methods is to use like a helicoidal or a thread cert type thing where you drill a hole bigger you thread this in and then you have you know threads two by two even better than that I think is if you can just to drill the hole bigger and put it in a larger bowl so I drilled them out and we've got 5 16 by 18 threaded bolts in there and I put three in because the idea I have is if somebody's going to use jb weld a lot of times they won't have a tap or anything else like that they just want the bolt to hold so what I did is I used the long cure jb weld because it actually is a fair amount stronger than the quick you know this stuff cures in like five seven minutes or something else like that it cures way stronger so I put jb weld in these holes and the bolt just slid in out before I just drilled it too big for it to go in and out but I all of the bolts just when I owned with ATF automatic transmission fluid this one I did wd-40 and this one I waxed and I've let them sit for about three days they only take about 24 hours to cure but I wanted to make sure that jb weld was as tough as possible and here i actually just filled up a hole because we're also going to try to drill and tap a hole and then we're also gonna try to use the quick stuff and probably even this stuff that i really like for stuff this is like a two-part putty that you just slice off what you need to kind of mix it up jamming in there but it dries in like 5-10 minutes something like that just like the quick but it's a little more putty like versus liquid light so let's just throw a wrench on these I haven't even touched them and see if we can back these out and if they have formed threads will try the wax one first and some on here it broke free let's see and it is coming out clean so as you can see the threads actually formed really nice and the bolt so wax is a good one and bolts threads in and out nice and it's nice and tight it's about five sixteen eight millimeter but this one was wd-40 and it is not the beauty forty is not a lubricant it is it's just ripping out the whole pole I think this is what I tried years and years ago I played around with this method you know cuz generally well no it's tight but it's coming out maybe it's working we do have we do have threads there a little booger it up but I also got it on this and they're not coming super cleanly they the wd-40 did not repeal the jb weld good enough and here we have ATF and that feels like a broke free easy like the wax but these bolts right here these 5/16 bolts I did it right here before it stripped out we're pulling about 35 foot pounds of torque through about a half inch thick chunk of aluminum and it started to actually even crack the aluminum it actually cracked it pretty good and we are 8.1 we're about ten foot-pounds 10.1 and it's stripping out let's try this one where the top threads got a little buggered up seven point eight averaged about between eight and ten so about nine foot pounds but even though this one wasn't formed as nice it actually held a little bit better which two foot-pounds is really you know that's in the margin of error so I drilled four holes right here and so we'll use some quick some quick drying epoxy stuff and we'll fill those in and we'll do the same methods and we'll put some bolts in those and then we'll drill and tap those along with this one over here and see how they hold up it's been a couple hours JB quick well sets up in five minutes but it takes about four hours cure so we've allowed it to do that the the quick steal takes just one hour to cure so this one's had extra cure time but it only takes one hour this takes four we have this hole to tap which is the jb weld that I have not tapped yet this one right here I put the JB quick in but one thing I found out is the reason it's failing I don't know if you guys can see this but the it's just pulling the threads out the threads are still all intact so it's just like a little mini helicoidal so it's just pulling away from the side so I thought the on this one if I could put some side grooves in so I got three little spots and I did some size group so these are the exact same JB quick these two right here but this one has some size grooves to help the Jamie weld something to grab so it doesn't twist out this one was waxed and the wax seems to release nice no no the problem with this stuff is it so thick cures fast but I have my doubts on this one see about the JB quick yeah the wax is the way to go the wax just releases yeah I got nothing but he's just - if it's too dry so maybe with me tapping I couldn't get it around the threads good enough so maybe that when we tap it'll be better but this one would be a most ideal because it only takes an hour to set and you're done okay the quick and it's kind of giving away at four foot-pounds 4.1 you [Music] [Applause] we got 7.6 now let's see if we can get higher with the side things ooh that feels a little bit better now a 6.1 / 6 points:2 the last one to test is the jb weld full cure regular jb weld with the hole tap and it feels like it did a pretty good job tapping and everything definitely felt stronger let's see oh yeah we got nine point four this is only happen to threads as well 3/8 to 1/2 of an inch we're not doing very deep thread so I mean if you had longer threads you know if you had one inch of thread you you could probably account for double that so you get about almost 20 foot-pounds of torque on one inches of the thread and just the fun have a whole video all about show you the copper wire method what we end up with that on this stripped out one with half inches of the thread 15.6 that's higher than I did these two these couple and then I got about 10 and 10 to 11 so I got 15.6 on this one and we're completely stripped out but you know that's the copper wire method actually beat all the other methods I have a whole video on that so go watch that if you're interested in that method where you can just assemble the part there's no waiting for glue or anything else to dry well you never know unless you play around and test does it work it actually does if you just had a valve cover gasket and if you had no threads in there whatsoever the bolts just pulling in and out just completely sloppy this will give you you know one inch of thread would give you 15 to 20 foot-pounds of holding power enough to hold the RTV in there if you still got a little bit of threads you feel a bolt in there I still think that the copper wire trick that'll put a link to that video right after here is definitely better it's quicker than this this just takes time you know cuz you gotta wait 24 hours for this stuff to dry but it does work impress me I didn't think it would work so easily but it does thanks for watching guys so you guys should buy

Channel: sixtyfiveford

Views: 295,984

Rating: 4.8634372 out of 5

Keywords: welding, metalworking, fabricating, diy, garage, shop, makita, dewalt, ryobi, metabo, porter cable, black and decker, stanley, miller, miller welders, lincoln electric, portable, tool making, tool, steel, rebar, iron working, hammer, autobody, repair, fix, milwaukee tools, Mechanic, bolt, stripped, hole, heli-coil, threadsert

Id: r5VSz9iEw5o

Length: 9min 50sec (590 seconds)

Published: Mon Mar 09 2020