I used Jabsco paint stripper on my wheels. The Hayashis did great. The 215s showed no effect at all. Not a ripple. Then I used acrylic bead blasting. Again, the Hayashis are ready for NDT, but there was no effect on the 215s. I think perhaps the 215s were not painted, but maybe given the chromate conversion treatment. This is a guess, as I have never even seen this used, but it would explain the lack of results.
So, the options I see are;
1] NDT as they are, assuming the treatment is bonded to the metal and won't affect the results.
2] use glass bead or some other more aggressive media and try blasting again.
3} Insert your idea here.
Question 2;
The Hayashis have distinct grooves left from the splined bolts. I have had no luck tracking down a source for thse bolts [ see picture in post 76 above ] Placing smaller bolts [3/16 may fit, posibly smaller required] seems reasonable, but leaves the problem of the grooves acting as stress risers. How big of a risk is this? Is it worth the expence of having a machine shop ream the hole, then finding a shoulder bolt to fit [if I even can?] Or should I just resign myself to having really nice looking trailer wheels and part with the cash for panasports.
Thanks for your ideas,
Jim