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| Thanks, I made two of them about two years ago. Now that I am building a single rotor, I have the luxury of having a back up housing. A 1.5" i.d. port is not so small when you look at it in real life. Its size guarantees an easy life for the tip seals. Because of the thick wall I was able to put in several deep grooves before pouring in the epoxy. A word on epoxy. I totally disagree with using JB weld. There are epoxies designed for this type application. One is Duralco 4525. It is intended for high temp (500º), high performance bonding. Expensive but worth the piece of mind. In application, it is extremely thin and very slow curing and thus will flow completely to fill the cavity around the insert. Mine took an entire day to set up. Google Duralco 4525 if interested. Jerry
On Jun 21, 2007, at 8:39 AM, Ed Anderson wrote: Nice looking P port, Jerry. Ed ----- Original Message ----- Sent: Thursday, June 21, 2007 8:09 AM Subject: [FlyRotary] Re: PP construction methods
George, ??? Let me get this straight.........Steel tube TIG welded to steel insert.......Then aluminum insert with O-ring (s) to seal to the steel tube.......? A sketch would be worth a thousand words for the engineering challenged........ --
Kelly Troyer
I would advise against welding anything to the liner. The housings are actually very flexible, and will soon warp in favor of the weld beads. A thick walled aluminum tube in a very light press fit through the inner wall.?Same through the outer wall, but not tight through the outer wall is also fine. The inner wall needs good support to prevent chrome cracking when you torque up the stack. ? Lynn E. Hanover?
Lynn,? similar to this?? My inserts(throttle bodies).? They are 2.25 o.d. and 1.5 i.d.? 6061 T6 ? ?Jerry
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