Looks good Paul,
This is exactly what I was thinking of. I believe this will be a
preview of the
RV-10 mount as well. Bill Jepson
Regarding the RV-10 mount, I was talking to an RV-10 builder here
in town a
couple of days ago and was told a very endearing rumor. Apparently
Van's
is looking into a mount for the Continental O-470/520 engines. If
this is
true, these mounts would lend themselves to an easy 20B adaptation.
The
Continentals use a bed mount as opposed to the Lyc's cantilever
mount.
Mike McGee, RV-4 N996RV, O320-E2G, Hillsboro, OR
13B in gestation mode
A> Might help but looking at my C182 O-470 bed mount mount there
still might be
A> a few problems.
A> Paul Lamar
Don Dunbar wrote
I have made 3 engine mounts now and it is my view not to play with
converting or trying to adapt any other mount. There is about 20
hours in a mount from start to finish once you have the firewall
pattern.
If you have a mount that was made for your aircraft use that to mark
a flat surface replicating your firewall. The tip is to use a
material that will not burn during welding or use large insulators.
Next step is to position the tube engine mounts that support the
Barry or Lord 2 piece mounts, this structure needs to be stayed well
with diagonals that dont interfere with the tube engine mount. When
you have done this cut and fit all tubes struts. With a 4" grinder
with a 1/16th cutting blade it is like cutting butter, hence the name
of the blades are called butter cutters which work very well on fibre
glass. After this I would take it to a good tig welder to complete.
The end result is that the end connection will be structural right
and all force are targeted at the base or intersection of the bolts
and fixing points
--
Best regards,
Don mailto:ddunbar@echidna.id.au
I totally agree. Good job Don of explaining the process.
Also check with Jerry Hey. He has a rotary engine
motor mount jig that can be adjusted to fit any firewall bolt pattern.
A good jig is not cheap to make.
Paul Lamar
Paul, just yesterday (about one month behind schedule) the shop
became fully functional and I am looking for projects. The shop is
not insulated, thus this Indiana winter has been a test. Not one
minute above freezing in January and many nights single digit. Heavy
snow one the ground. Have not been to the airport in three weeks.
Dressing and undressing takes a lot longer in Indiana than it did in
California.
Ignoring the cold, the shop is large and easy to work in. I
unwrapped my engine and found that the engine mount had plenty of
surface rust. No matter as I want to build a new one with the exhaust
clearance modification. I am planning to make a square tube exhaust
system using 253 MA Stainless Steel eventually. But the first version
to develop the bends will be out of mild steel.
I am thinking of having Danny make some more MMP's. Do you want to
revisit that design? I would like to make just one size (width) that
would fit every situation. With the new tube layout, that should be
possible. Also, what is happening with the cast bell housing?
That might put the MMP out of business if it becomes available. Are
you looking for someone to finish the castings? Danny would be a good
choice.
I know I have said a lot of the above before but things have progressed
more slowly than anticipated.
Jerry
J-Wind Designs/Tailwind Times
3790 S. 600 W.
Albion, Indiana 46701
260-799-4507
"Barry A. Doublestein" wrote:
Paul, you mentioned that Jerry Hey has a motor mount jig that is
adjustable for differing bolt patterns. How does one get hold of Jerry?
Thanks,
Barry Doublestein
Atlanta, Georgia
Glasair S-II FT
N59BD
Jerry Hey <j-winddesigns@thegrid.net>
Paul Lamar
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