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Brent and Dan,
You're correct in that coarse threads and lousy technique will invariably
lead to loose engine...  I, too, have several mud buckets of "hit the floor"
hardware from Santa Barbara Aerospace/Lucas and you're right; there aren't
very many lock washers there.  It's just that out there in the real world we
can't simply throw on a nice fine threaded stud and an MS21042.  The way it
was certified must be made to work and those engines were certified a long
time ago.  Too bad LyCon won't pony up for the required changes.  But then
if they did think of the confusion it might cause the poor mechanic who, as
you say, is burdened enough.  Way too bad LyCon can't put together a tight
engine with what they have to work with.
Your point is well taken... as experimentalists we can fix up these
problems.
Walter

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