Paul,

A point well taken.

I found a seal engineering and manufacturing company in here in Denver, CO,
that has spec'd out a design/ material for a seal they can manufacture  that
will be suitable, they say, for the the bell-housing seal.

The seal material they have quoted is  Fluoroelastomer Turcon T-40 based on
the following parameters:

RPM:  6000 Typical
Temperature:  200-275 F
Pressure:  7-15 psi, (with .040 in and the fitting size (1/4"?) out)
  ( I told them that under cold start-up conditions, the oil will thicken and
pressure will go up.  However they said that they didn't think the seal would
see any significant pressure rise.)

Media:  Motor oil
Seal case material:  304 SS

Has anyone tried the above material, and if so with what success?

Their quoted price for set-up/fab is $84.23 each plus shipping.  A bit steep,
but if it does the trick it should be worth it.

Minimum qty is four.  So there will be some left over from what I will need.

If you think it is viable, I can place the order and the ACRE group is
welcome to the balance, at cost plus shipping.

Also, has there been any reported leakage from the seal at the prop hub?  And
if so, is this seal the same size as the bell housing seal?

Joe Graham

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