Paul, I think you are wrong about being able to remove the PSRU from
the motor plate with the motor mounts on it. You just undo the 1/4 "

bolts

instead of the long 10 mm bolts. To inspect the psru you must remove

the

1/4"

bolts anyway. I have done it many times. Here is a pic with just
a couple of the 1/4" bolts holding the psru to the motor plate.

You don't necessarily have to use the motor plate for the mounts.
You can use a Schertz beam and motor plate and
all will come off with the engine still in the mount.

Paul Lamar

Hi, Paul....you are correct that the system depicted in the picture

allows

removal of the PSRU without removal of the engine. What I was referring

to

was the original drawings that Jerry Hey did for me in an attempt to

make a

mount for me using my Ross PSRU. He proposed welding the mounts to the

PSRU.

That would have made removal of the Ross PSRU difficult.  With Tracy's
redrive and the present system, removal of the PSRU would, of course be
easy.  Unfortunately, I needed a motor mount before the later

refinements.

Again, it's great that we have all these experimenters who make it

easier to

turn our rotary engines into "plug and play".  Especially admire your
efforts.  Paul Conner

I guess you missed the few years of the newsletter when the original
idea of the cross beam was proposed and extensively discussed. The
Schertz beam was an extension of the Questair Venture idea. It would
work fine with the Ross. the pictures have been on the ACRE NL web site
since the beginning almost five years ago.

How much did you pay for your motor mount?
Please inspect it very carefully for cracks on a regular basis.

Paul Lamar

Hi, Paul.....I paid right around $1000.00 for my motor mount which included
wooden crating. Actually, I did not miss the earlier discussions regarding
the Questair Venture.  My problem was that I am not a welder, (nor do I wish
to be), and I was searching for someone who could make a mount for me. Perry
Mick was too busy, Jerry Hey's suggestion of  a mount that welded to my Ross
PSRU was unsatisfactoy...and then Fred stepped up to the plate. offering not
only a suitable mount, but he fulfilled the most important requirement  that
I had.....He would weld it up for me. I would have paid twice that price  if
necessary, just to put the motor mount issue behind me, and get on with the
engine installation and trying to figure out the intake, exhaust, radiator
and oil cooler.  It's finally taking shape. Should fly this year.  Thank you
for the suggestion....I will, and have always inspected my motor mounts
frequently for cracks (I am a former LongEZ owner).
 P.S. I sincerely appreciate the enormous effots you have been putting into
all the stumbling blocks we rotary enthusiasts have been coming up against,
such as intake, PSRUs, water pumps, pipe bends, bell mouths, etc.  Thanks to
your efforts, more builders are likely to choose a rotary engine for their
projects. What's a Lycoming?  Paul Conner

Send it back to him and have him weld in the missing tubes.

Paul Lamar
 
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