Thanks Walt. I did find Lord mounts for a little over $1k. However I suspect PHT prices have gone up in 18 months. I saw an old pricing sheet from Victor Aviation talking about $1,700 for oil and fuel hoses. At same time they were asking for $1,800 for mounts. Anyway, I'll keep shopping...
Yes, very sad indeed to rebuild such a low time engine. Although we were able to catch a number of things that could have been a problem:
1. crack in crankcase - sent off for repair to OK (I was told by poplar grove this looked like a casting problem)
2. corrosion in cylinders and on camshaft (sent off for grinding and blasting)
3. new exhaust valves, springs
4. new tempest massive plugs (only 1 of 12 passed resistance test) - all were champion massives past 750 hrs, so probably not too bad
5. fuel pump AD complied with
6. fuel servo SB complied with
It was running very smooth prior to all of this, but I did have some problems with plugs fouling without aggressive leaning. Even then, I usually had to lean and recheck mags. I ended up doing IRAN on both mags with poplar grove as well since they were past 500 hr point. A few parts replaced, especially coils.
I'm also doing a dynamic balance once everything is back together. Is that what you did or talking about something more specific with the crank prior to being put back together? I believe poplar grove is doing that as well.