Paul, would it be better to weld aluminum o-ring collar for the PP intake tube to the outer housing instead of screwing and epoxy as seen in some of the drawings? ( i have the capability in house) long term/reliable bonding to aluminum with epoxy is a very tricky and questionable proposition. -jw

James Whitehurst

Well the stainless steel p-port tube is welded to the steel rotor housing.
No way of welding it to the outer housing which is aluminum.

For years people bonded in an aluminum p-port tube.
That was very problematic and un reliable. It would work for
a while and then it would leak. It would leak water into the combustion
chamber or just out of the block. We worked on this for months trying
to come up with a reliable way of doing it.

Welding in the steel tube was a major breakthrough. We now have about
200,000 hits on you tube. A very large number for a rotary video.

Here are some pictures from the old days when attempting to bonding it.

The new way with the bolted on block can be repaired. Just a matter
of redoing the silicon rubber or replacing the O ring.

You might try welding the outer block with the O-ring slot to the outer
rotor housing. But I would do that in stages to keep the rotor housing from
getting too hot and warping.

New Rotor housing are very expensive.

Paul Lamar


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