12b


    Paul

   I am sending a new design for a damper proposal with the Ford
   transmission drum with a minimum machining, the aluminum hub part can
   be water pressure cutting device for all straight open holes and the
   rest with minimum machining with a small lathe.
   I attached some drawings in perspective and parts list.

JEAN PRUDHOMME


How is this fastened to the Mazda counter weight?
Paul Lamar


The same bolt holes pattern as the original steel part with conter bore
to hide the head screws

I located
those cap screws locations to screw to the counter weight, it can be
screw straight to the flywheel and the counter weight or reuse the
existing steel part as original spacer and flywheel.

Photo showing damper assembly with socket head screw to attache to the
flywheel and the mazda counter weight


JEAN PRUDHOMME


Jean, I like this proposal, but I am still not clear on the complete part arrangement. Can you show or describe all parts starting from the aft side housing to the prop reduction drive?

james whitehurst


I think what Jean has in mind is this. Absolutely the simplest coupling so far that is likely
to work. Brilliant lite weight  design.

Basically you obtain longer socket head metric bolts that hold the flex plate on the counter
weight and surround them with small spacer's. This forms six strong studs.

The actual coupling has larger holes and silicone rubber is used to fill the gaps.

It is similar to Andrews CampBell's design. Almost identical.

Green is steel. Bolts are black and aluminum is blue in this 3D.

The PSRU input shaft is 1.5 inch in diameter instead of one inch that Tracy used.
Extended point set screws can be used to connect the PSRU input shaft with the
actual coupling.

There must be a pilot fitting to fit in the end of the e-shaft to center the PSRU
input shaft. Not shown yet in this dwg.

Paul Lamar

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