Re: Heli-Coil Usage
Posted by HH56 On 2010/10/18 9:21:23
Probably others more versed in this for automotive but I would think something like a Time Serthttp://www.timesert.com/ or E-Z Lockhttp://www.ezlok.com/InsertsMetal/index.html repair would be a better alternative since they are solid units vs a coiled wire that just winds in. In medical equipt I've worked on, this solid type was factory supplied when a repair to a stressed piece was needed.
Since the 21st series, Packard studs have a special thread on the end into water jacket to reduce leaks. If you use the proper stud, that might be an issue threading into any kind of repair as apparently happened in reverse causing your original problem. Packard mentions they are not interchangeable so you may need to buy or have a special stud made for the repaired spot if your old one that was changed is not usable.
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Since the 21st series, Packard studs have a special thread on the end into water jacket to reduce leaks. If you use the proper stud, that might be an issue threading into any kind of repair as apparently happened in reverse causing your original problem. Packard mentions they are not interchangeable so you may need to buy or have a special stud made for the repaired spot if your old one that was changed is not usable.
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