I know this is an old posting but I have a '91 TS6M with the rusty pylon bracket issue that has been slowly developing over the years. It has recently developed a little looseness or minor movement at the bottom of the black pylon where it seats on the bracket, if indeed it does slide onto a fitting on the bracket. So, I'm assuming it's not all one piece then. Pictures for reference:

IMG_1022.jpg
IMG_1018.jpg

Questions:

1) Is there a maintenance manual that describes how it comes together and how to repair/replace the rusted pylon bracket?
2) Can the pylon be removed from the lower bracket? Is it loosened by the two set bolts shown in the attached picture?
3) Is it easier to cut out that section of the floor to replace the bracket? (see note below)
4) what are the torque specs for the bracket and pylon set bolts?

note: If I'm going to eventually remove the engine for an overhaul then it appears the floor doesn't need to be cut out.

thanks for any input on this subject.