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So since it appears that this is another one of those "All In" Annuals,We (Charlie, my local IA and I) decided to change the old engine mounts (With the approval of the banker - AKA wife) this year. "May as well", was my answer since we are topping the engine. The old and new mount from the lower right are side by side in the pics. Not only had it twisted because it wasn't installed aligned with the dial pin on the frame, but it was over-torqued and had completely collapsed. A picture is worth a thousand words, but all I could say after we removed these was "Wow".We also have engine angle pics before and after that I'll post when the new cylinders and baffling are installed.As an aside, anyone thinking about replacing or overhauling a Lycoming cylinder, give Airpower a call. Their prices are unbelievably good on factory new as well as Superior, and ECI kits. Considering that Factory new came with new piston pins and caps the price was minimal in terms of difference. Add in a 2yr warranty parts and labor on Lycoming cylinder kits with unlimited hours and it was a no-brainier. Having peace of mind that the Cam is in impeccable condition, I figured it to be worth a topping now to guarantee running to TBO and maybe a little extra if condition permits. I'll follow up throughout the break in process with how the MVP 50 reports and how all develops for anyone interested.I will say that this is the most extensive owner assist work that I have ever done, and I certainly have a renewed respect for A&Ps :-).

I'm looking for some group input. The background: 1975 M20F, IO-360-A1A, 2810 TT, 900 TSMOH. Engine is sagging, starter does not touch, but the alignment is not correct. Engine mounts are roughly 30 years old. The current part is #J-9613-12 (all four), as listed in the engine logs. Here's the question: Is there anybody out there that has looked at the parts manual (concerning engine mounts) and picked up on the idea of there being TWO different mounts specified? As in, since the engine "hangs" from the mount, the upper mounts are under a diffent stress load than the bottom mounts. A different mount is specified for the different locations. Part II: Is this a big enough question to lose sleep over? Apparently, it wasn't for the previous owner, and I haven't seen anything on this prior (and YES, I did search). So, what does the group say??? Oldnotdead