Thread: Alignment Report

IMG_1710.JPG

"FLATNESS" ie the surface of the adaptor plate

12 o'clock 0
1 0
2 -1
3 +4
4 +4
5 +4
6 +4
7 +4
8 +4
9 +4
10 0
11 0

Hmmmm! I might "polish" it with my Rupes orbital sander and 120grit paper between 3 & 9 o'clock & remeasure.

ARC

12 o'clock 0
1 -1
2 -2
3 -2
4 -2
5 0
6 +1
7 -2
8 -2
9 -5
10 -6
11 +1

When I looked at 9 & 10 o'clock, that's where the starter mounts & the inner lip of the plate is real thin. There was a def dimple there too so i don't think it has anything significant to do with the overall concentric integrity.

Comments?

I'm not prepared to risk misalignment by removing the plate, but, I see your point Diana & will replace the studs & check again on the stud centres.

I polished up the surface & checked again for flatness:
12..0
1..+1
2..+1
3..+2
4..+2
5..+2
6..0
7..+3
8..+1
9..+1
10..-1
11..-2


Some studs were crook mainly at the top & near the starter & I had to re-tap from 3/8ths to 7/16ths UNC. They will all be going back with a good blob of epoxy putty in the threads & on the bits that poke thru the adaptor.
I may even try to get nuts onto them but there's no room.