loyale1993 Posted February 24, 2015 Share Posted February 24, 2015 Ea82 had a missing nut on the driver side exhaust flange at the head. I put a new nut on it and go to tighten it and find out that the threads in the head for the stud are stripped. Opinions on jb weld to fix this problem or anybody have a similar situation? I really don't want to get into drilling and tapping and all that jazz. Quote Link to comment Share on other sites More sharing options...
DaveT Posted February 24, 2015 Share Posted February 24, 2015 I've helicoiled the ones that have stripped. There's a lot of wide heat cycles and expansion contraction going on there. I would be very surprised if jb or anything similar would work. 1 Quote Link to comment Share on other sites More sharing options...
Scooner Posted February 24, 2015 Share Posted February 24, 2015 What Dave said, it would be wise to get a good helicoil set just to have if you own a subaru haha. I had never heard of helicoils till I owned a subaru! They are really easy to do, you will have to drill out the old hole and re tap it for the helicoil but it's aluminum and real easy to do. 1 Quote Link to comment Share on other sites More sharing options...
loyale1993 Posted February 24, 2015 Author Share Posted February 24, 2015 how difficult is it to do a heli coil? 1 Quote Link to comment Share on other sites More sharing options...
Scooner Posted February 24, 2015 Share Posted February 24, 2015 Just need a drill, the helicoil set was kind of expensive though, like $50-$70 but so soo worth it. I got mine from Napa. 1 Quote Link to comment Share on other sites More sharing options...
loyale1993 Posted February 24, 2015 Author Share Posted February 24, 2015 What Dave said, it would be wise to get a good helicoil set just to have if you own a subaru haha. I had never heard of helicoils till I owned a subaru! They are really easy to do, you will have to drill out the old hole and re tap it for the helicoil but it's aluminum and real easy to do.Seems like a pain in the @55. I can only hear a slight leak from it and it's not like my sube is that quiet anyway lol Quote Link to comment Share on other sites More sharing options...
Scooner Posted February 24, 2015 Share Posted February 24, 2015 Screw it, let it rip then! 1 Quote Link to comment Share on other sites More sharing options...
loyale1993 Posted February 24, 2015 Author Share Posted February 24, 2015 Well I hate not having things proper lol so I will look into the helicoil set. But for the next couple weeks it's just gonna have to leak a little Quote Link to comment Share on other sites More sharing options...
DaveT Posted February 24, 2015 Share Posted February 24, 2015 The leaking wont hurt anything. I've run around with partially failed exhaust gaskets before. I've pretty much got a set of helicoils for all of the bolts in a Subaru. The best way I have found to avoid needing to use them is to run the car up to normal operating temperature [if possible] before trying to loosen sticky bolts. Then go easy. If you pay attention, you can usually feel the difference between a bolt turning sticky and a bolt twisting off. 2 Quote Link to comment Share on other sites More sharing options...
joe5 Posted February 24, 2015 Share Posted February 24, 2015 yup, been there done that. I think most of us end up fighting a stripped exhaust stud at some point or another. Hope you can find a cheap way to work it all out. 1 Quote Link to comment Share on other sites More sharing options...
Gloyale Posted February 24, 2015 Share Posted February 24, 2015 You do not need a Helicoil. I've fixed this dozens of times......never helicoiled one. Get a 7/16ths-14 tap and run it in the hole. The stripped hole should be perfect size already to run the tap in with a bit of lube. it can even be done with the exhuast in place, through the flange. Get a 7/16ths exhaust stud and nut. install. Done. Way less money and time, and if it should ever happen again you still have room to use a helicoil later. 1 Quote Link to comment Share on other sites More sharing options...
Scooner Posted February 24, 2015 Share Posted February 24, 2015 Yeah, that does sound easier. Hey Gloyale where do you get the 7/16 exhaust stud and nut from, and what length do you use? Quote Link to comment Share on other sites More sharing options...
ford'ssubaru's Posted February 24, 2015 Share Posted February 24, 2015 It really is not. Just requires a little patience and can be done with exhaust in place. Quote Link to comment Share on other sites More sharing options...
loyale1993 Posted February 24, 2015 Author Share Posted February 24, 2015 (edited) You do not need a Helicoil. I've fixed this dozens of times......never helicoiled one. Get a 7/16ths-14 tap and run it in the hole. The stripped hole should be perfect size already to run the tap in with a bit of lube. it can even be done with the exhuast in place, through the flange. Get a 7/16ths exhaust stud and nut. install. Done. Way less money and time, and if it should ever happen again you still have room to use a helicoil later. You know I just picked up a tap and die set at an estate sale just two days ago. I looked at it and thought, "you know some day I may need that" lol. I was going to tap it last night (the exhaust for you dirty minded folks) but it was getting dark, the exhaust pipe was interfering with my T handle, and I was annoyed so I gave up for now. Thanks for giving me the sizes to use that was another hang up for me. Edited February 24, 2015 by loyale1993 Quote Link to comment Share on other sites More sharing options...
rdweninger Posted February 24, 2015 Share Posted February 24, 2015 Scooner, the stock stud length is 37mm. That's like 1.5". Just make sure your flange covers the unthreaded middle part.... so your nut does not run out of threads towards the middle of the stud. Quote Link to comment Share on other sites More sharing options...
Scooner Posted February 24, 2015 Share Posted February 24, 2015 Ah good to know, thanks RD! Quote Link to comment Share on other sites More sharing options...
loyale1993 Posted March 9, 2015 Author Share Posted March 9, 2015 Update: I opted to go with re tapping the stripped hole to 7/16". I attempted to go through the flange like suggested but I had 0 clearance for my tap handle to turn. So I tried to remove the exhaust pipe to gain access. Well, turns out the other stud was going to come out with the nut. I was afraid of stripping that one too and so I snugged it up and went with jb weld in the stripped out hole. I'm not real proud of doing that but I really didn't want to open a huge can of worms right now. (maybe I did anyway with using jb weld) I guess it will be interesting to see if it works or not. Thanks for everybody's suggestions. Quote Link to comment Share on other sites More sharing options...
loyale1993 Posted March 10, 2015 Author Share Posted March 10, 2015 Update: I opted to go with re tapping the stripped hole to 7/16". I attempted to go through the flange like suggested but I had 0 clearance for my tap handle to turn. So I tried to remove the exhaust pipe to gain access. Well, turns out the other stud was going to come out with the nut. I was afraid of stripping that one too and so I snugged it up and went with jb weld in the stripped out hole. I'm not real proud of doing that but I really didn't want to open a huge can of worms right now. (maybe I did anyway with using jb weld) I guess it will be interesting to see if it works or not. Thanks for everybody's suggestions. Well epic fail with the jb weld lol. As soon as the manifold got warmed up the jb weld turned to putty and I'm sure you can figure out the rest. I guess I'll get around to fixing it the right way in the near future. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.