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Rear Shock Mount Saga


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First of all, thanks to all the advice I've received, particularly about removing the muffler. The "twist and pull" technique worked perfectly!


I went to Irv Seaver's today to pick up a replacement bolt. I showed my double sheared bolt to the parts manager. When he didn't exhibit a remarkable reaction, I asked him if this happens very often. He responded "I've got a drawer full of these". I was shocked (sorry for the pun)! He said that he tried hard not to let customers reuse their shock bolts because of this.


After I had removed the muffler and side plate, I noticed the bushing in the other side of the sock fitting (the non-threaded side). The hole looked definitely out of center. I put the new bolt it it and there was certainly an excessive amount space between the bolt and bushing. I called the parts manager and ordered a new bushing. By the time I got off the phone, Jim had arrived and we were ready for the exciting part.


I tapped on my centerpunch and set a point for the 5/32" drill bit. I bought a new, hard steel bit just for this reason and it cut right into the bolt even with the drill operating at a slow speed.


Jim then demonstrated the use of the thread extractor. The problem we had was getting the thread extractor in and getting a good grip on it. We solved the problem by using a tap wrench. Also, Jim used his industrial strength blow drier to get the temperature up so that the thread lock would get a little fluid.


Now I wait for the news on the shock rebuild. It arrived at the Works office Thursday.


I'm disappointed that this is such a weak point. IMO, this should be a 10mm bolt. Also, the sleeve feels like aluminum. I'm thinking this should be a stronger material.


Anyway, with all of this, I'm recommending that one should consider replacin their shock bolts and bushings. I'm going to make it part of my regular (36k) service.





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Thanks Bill! Great pictorial on how you fixed a broken bolt and checked and replaced the bushing. Good info on new bolt and bushing when replacing, fixing or upgrading the shock! clap.gif

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