"Stupendous Man" <spam (AT) trap (DOT) com> wrote

Neither a spark plug nor the wheel bolt is 14x1. But I do agree with
replacing the hub.

hi what i would do go to a breakers take the wheel off then centre nut
pull the hub off put it on yours job done helicoil would work,would
cost more ,more off road time replace the bearings at the same time if
you want cheers frank

"Rick" wrote:
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As far as the quality of helicoils, and their suitability, I think
that hey are fine if installed properly. you need to have enough
material there for it to dig into, and you need to drill it out with
the proper size bit. If you do these correctly, you will be fine. I
worked with an engineer that had worked for Boeing, and I don't know
if this is where he got it from, but he was a big proponent for using
them wherever you had a bolt threading into a soft material like
aluminum if it were ever to be dissassembled and reassembled.

Since torquing down a bolt puts stress on the threads, and there is
friction there, you can wind up wearing soft threads. Repeatedly
loosening and tightening a fastener can eventually kill the soft
threads. So he would design it to either use a stud, which isn't
torqued in, it is only screwed in with no force, then put under
tension, or he would use a helicoil. The helicoil(if installed
properly) would not spin, and would take all the wear, which would be
minimal since it is much closer to the hardness of the bolt, and I
think they may even be harder than most bolts.

Prior to his shpeil on helicoils I also thought that they were the
equvalent of duct tape. But I think they do have their place.

Bill