12 b
Hello Paul, I am interested in the universal motor mounting
system you have. Could you give me ordering instructions,parts list
and cost? Thank you,
Todd Olson
Yes I have all the parts.
The square tube ends. $10 ea The round tube ends. $8 ea The high
angle adapters. $12 for a set of two. The U shaped fire wall
fittings. $10 ea The main fitting. $30 each. Two inch OD washers 1/2
inch hole .125" thick. $5 ea
I don't have the motor plate. One can make that with a band saw from
half inch 6061 plate.
The rubber cup holder for the motor plate can be welded from steel
tubing. A NC mill version would cost a fortune. Or you can saw it out
of 1/2 inch aluminum plate like the original shown here.
I just had an excellent idea for drastically reducing the cost and
time to make them. A simple change in the steel tube.
It was as simple as making a spacer out of wood, plastic or aluminum.
The lateral loads are low so almost any material would work.
Here is the 3D.
Dimensions later.
Paul Lamar
There is a simpler rubber cup holder made from half inch aluminum
plate but it is not as compact as the welded cup version. I used it
on my KIS Cruiser. The big draw back there is not enough room on the
right side of the engine for a vertical cooling system over there. It
could be used on the exhaust (left) side as you need to get the motor
mount tubes out and away from the engines to make room for the
exhaust manifold.
What kind of airplane are you building Todd?
BTW a wood band saw can be used to cut 1/2 inch aluminum plate if you
can cut down the blade speed.
Paul Lamar
I am building a Murphy Rebel and using an RX8 with Tracy’s drive. I
remember seeing a thread about thrust washers/bearings for that drive to
fix that issue. Where do I get them and where do they go in the drive?
The space issue leads to my next question. Do you know of a good vendor
for a ss header kit? I have so many questions.
Todd Olson
Here are some pictures of the drive upgrade.
Mc Master Carr has all sorts of bearings.
What is the ratio? Do you have a prop?
No vender's for SS but most tig welders can handle it.
If you use 304 SS I recommend .062" thick for the first two feet.
If you use 321 SS I recommend .050" thick for the first two feet.
Beyond that .035" will work.
Paul Lamar
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