Steve,
1. Cut the 2 bottom plates in half. They only serve as spacers and are used to set the heigth of the engine and center it vertically.
2. Fabricate 2 plates that are the same thickness as the raised bosses around the engine mounting holes. Drill 4 holes in the new plates,centered on the engine mounting holes,
the holes should be large enough to clear the bosses so the plates sit flat on the mount lugs.
3. Place the 4 elastomeric pads on top of the new plates.
4. The 2 new upper plates sits on top of the pads.
5, Assemble as follows:
a. Gather the 2 pads that have been cut into 4 pieces. Put the countersunk screw thru the plates and put the 4 screw/plate ass'ys up thru the 4
mounting holes of the engine mounting lugs.
b. Place the new spacer with the enlarged holes thru the 4 screws resting on top of the mounting lugs.
c. Place the elastomeric pads on the screws protruding up thru the engine mounting lugs.
d. Fasten the new top pad over the screws and fasten/tighten the lock nuts on the screws until contact is made with new plate.
e. Insert the 4 standoffs up into the elastomeric pads.
f. You are now ready to mount the engine to the 4 blind nuts with the 4 long bolts and washers.
Bob Q.