Bill Freeman wrote:

Paul,

No offense to the very innovative solutions proposed
to the pre-oiling problem, but this seems a bit of a waste
of time.  In billions of hours of real world testing, there
is relatively little damage to engines that sit idle for
significant periods, aside from the cylinder rusting issue,
which pre-oiling does not seem to solve.   Almost all A/C engines
make at LEAST 50% of TBO, even with serious parts problems,
like wrong rings, poor valve seats, valve guide material
compatibility, etc, etc.  Even the stupid Lyc design of
having the cam far away from the oil, mostly works in
real life.  Seems the effort would be much more profitably
spent solving a real problem.  IMHO, this is mostly guilding
the lily.  My guess is that pre-oiling would solve about
2-5% of engine problems, and would have very little impact
on whether you make TBO or not.

Again, no offense meant to the innovative and imaginative
(and ,no doubt, effect) solutions proposed here to a
(fortunately)  nearly non-existent problem.

The post-oiler for a turbo is closer to the mark, but even then,
about 3-5 minutes of ground idle prior to shutdown and a
top quality oil will solve this with no more complexity and
weight.

Bill

I totally agree Bill.

I very popular device for street turbo engines is a black box
that delays shutting the engine off after you turn off the
key and jump out of your turbo car.

Paul Lamar
 
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