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Do not heat case, even loctite require heat that will melt paint and distort that face. Mapp Gas heat range and shield case with scrap cut tin. . Heat stud red and let cool down. Will break loctite and if corrision, the red heat will expand steel stud and break bond and then shrink when cool.. The aluminum case is like a heat sink and unless you have a Mapp or hotter toarch, the aluminum will pull the heat and prevent it from going down stud until case gets too hot. After heat and cool down, hit it with a spray of PB Blaster if you can get it. Some states outlawed it. If you end up loosing the threads, you can use cover as a guide to get hole straight for either the next bigger thread or just tap same size deeper. Read my previous post.
When using MAPP gas with oxygen for combustion burns at 2927*C(5300*F)
When using MAPP gas with air for combustion burns at 2010*C(3650*F)
When using Propane with air for combustion burns at 1967*C(3572*F)
Aluminum melting point 660*C(1220*F)
Heat normally required to remove most threadlockers is 290*C(550*F)
Letting it cool down defeats the purpose of heating it. Loctite will harden again.
I know the heat source I would choose.
I'd venture a guess that even if the bolt did come out ( highly unlikely ) there would be very little to no threads left when you consider the fact that the bolt has ( probably ) seized in the case. The threads have "galled". It's kind of like "cold welding" and little to nothing can be done to fix it other that drilling out the bolt ( which can be even tougher after heating ) and repairing with either an oversized bolt/stud, or something like I mentioned earlier, a Time-Sert or a Heli-Coil. I've seen this happen many times in my years as a mechanic. It's very frustrating but ... such is life !!
Last edited by Uncle Larry; Feb 5, 2016 at 10:03 AM.
Reason: spelling
Whenever any bolt is removed it should always get a dab of anti-seize on it for easy removal down the road. You can also use anti-seize what a drop or two of lock-tite on it to ensure it will not back out on you.
The differences in the metal alloys between the fasteners and the part it is going into causes all kinds of issues with stuck bolts etc.
When using MAPP gas with oxygen for combustion burns at 2927*C(5300*F)
When using MAPP gas with air for combustion burns at 2010*C(3650*F)
When using Propane with air for combustion burns at 1967*C(3572*F)
Aluminum melting point 660*C(1220*F)
Heat normally required to remove most threadlockers is 290*C(550*F)
Letting it cool down defeats the purpose of heating it. Loctite will harden again.
I know the heat source I would choose.
My thought and I could be wrong. Loctite dries in the absents of air. That is why the bottle is only 1/3 full. Once dried, it does not work again. Once heated, it is powder. The hot torch on the stud heated very quick does not or you should not heat the case other then the female threads. While hot, the stud is still tight. When it cools down the loctite is toast and the swelling breaks the corrision bond. Not an expert here since this is my hobby but what I use and it has worked numerous times. Working on bikes has taught me to use good tight torx and allen wrenches with my small impact. I have changed out quite a few foot peg mounts that you do not want to use heat on. The big torx will be totally stripped out by hand. With an impact, they come right out. They are so hot, it probably heats the loctite. Harleys are a real pain to work on because of this. People who say different know what they are doing. I am sure it will come out once heated and if you want to grab onto it hot, it will come out. My thought was to let it cool and hopefully, the PB Blaster would then go in and lubricate and save the thread coming out. If not, I would heat and then go with the hot.
I just got a can of crc 'freeze off' in the mail today. I'm going to use that as told by directions, and use a manual impact driver to hopefully break things up. After this if it's still a no-go it's going to be heated. Wish me luck...
I just got a can of crc 'freeze off' in the mail today. I'm going to use that as told by directions, and use a manual impact driver to hopefully break things up. After this if it's still a no-go it's going to be heated. Wish me luck...
Well after trying just about everything under the sun it still was not coming out. So I decided to muster up and do a helicoil. Sealed the case up real well and kept a small shop vac going while I cut the bolt flush in the case. Got some brand new sharp drill bits and went to town. For it being my first time doing a helicoil it actually was not that bad. Finished up the helicoil and a new bolt went in smoothly and cover went on nicely. Bike is back together and im actually going to go rip around on it right now.
If it were me, I would keep stepping up drill bits and drill the bolt until u finally drill it completely out, and then just re tap new threads in the casing
No don't keep stepping on bit size go with bit same size as head of bolt drill slow until head is gone remove derby cover and remove rest of stud by hand I see this all the time in my shop very easy to fix
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