Paul wrote:

Just remember guys this is just an experiment and
not necessary to build a p-port. JB Weld works
fine if done right.

Question: Is the leak path along the Al/JB  Weld interface? Seems like a rather long path even given
hot water under pressure.  Is it because the JB
Weld does not seal that interface, due to the weak
oxide surface, without proper preparation? I remember
one engine with a leak due to an epoxy problem.
Have there been others?

Fred O.

Yes proper preparation is essential.
You need an alodine kit for the aluminum. Then you need
to thin the JB Weld with acetone and use pressure to forces
it into the crevices.
Read http://www.rotaryeng.net/intake.html
How to bond the p-port tubes into the rotor housing. <http://www.rotaryeng.net/dug-out-txt.JPG>

Paul Lamar ...No rotor no motor.

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