Bolts, classing, hardness, and strength...
Yeah, thanks Greg. Can't get exact dim's right now since the parts are at a machine shop. I'll let you know in a few days. 
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From your pics, this is pretty much what happened to all Vishnu adapters -- the bolt heads abrade the soft aluminum, which takes the preload out of the four little bolts. They then loosen and eventually snap.
Larger bolt underhead area (replace tiny allenhead bolts with integral washer hex head) and a steel backing (NA washer ring, in my case) fixed it for me. No need to mess with larger dia bolts and such, in my case...
Larger bolt underhead area (replace tiny allenhead bolts with integral washer hex head) and a steel backing (NA washer ring, in my case) fixed it for me. No need to mess with larger dia bolts and such, in my case...
I'm now up and running again, with 8x20mm hardware. The next jump up was 8x25mm, so after Rev Greg cuts me a washer-ring, that's what I'll run.
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Thanks Greg--but I can either come to you or send you a drawing and/or spare parts. I don't want to ask you to come to me for a favor.
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russian
Miata parts for sale/trade
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Oct 8, 2015 03:01 PM
