Wrathall Mark wrote:

Mike, looking at your engine installation pictures, you must be commended
for a very neat and well presented layout.

In the picture of the right side mount, it appears that the mount is
fastened by three studs, and two bolts. The LH mount is bolted. Are the
fasteners shown the final choice, or just mock up parts?

General aviation practice would require postive locking on all these
fasteners (lock wire or  tab washers for either nuts and bolts, or cotter
pins on the nuts). Two of the nuts on the RH mount appear to be nyloc, which
is not considered postive locking for an engine installation. The studs at
these locations also appear too short (But maybe they are just finger
tight?), I was taught two threads showing for a fastener in safety, other
organisations accept one thread clear.

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