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Rusty, no need to 'weld' the inserts into the housings. Since this is the cold side of the engine the procedure is to bore the holes, insert the pport housings, then fill the cooling passages around the insert with epoxy. Jerry has the details on the epoxy he used. Lots of stuff will work though.
Ken Powell
Bryant, Arkansas
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I see the exhaust closing left stock at around 48 ATDC.
Then open the intake later than stock, to eliminate as much overlap as
possible. The a way late closing point for the intake.
Lynn E. Hanover
This all makes sense, and certainly sounds reasonable. Thanks for being willing to sneak out in the workshop, when I "know" you'd rather be working on house stuff :-)
As for the actual construction, aren't most of these PP inlets just epoxied in place? It just seems hard to believe that it won't leak water at some point if you do that. Is the rotor housing alloy weldable? Can the port be TIG welded inside and out, rather than epoxied?
Should have the RV-3 engine home this weekend, but probably not apart until sometime next week.
Thanks,
Rusty
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