Subject: Building a P-port engine. comments
From: Rotary Engine
Date: 11/19/2006, 10:44 PM
To: AA-me


> I am about to upload this to the web site.
> http://www.rotaryeng.net/intake.html
> > Does anybody want to comment?
> Are there any questions?
> > Paul Lamar ...No rotor no motor.
> > > Paul,
> >    This will be very helpful.  Just one nit: > "Dremal" should be "Dremel"
> > Mark
> > Thanks Mark.
> > I also forgot to mention about assembling the engine
> with
> out e-shaft and rotors and pressure testing the
> coolant
> system to 30 psi to check for leaks. However if this
> is done
> right the large area of JB Weld bonded to the
> vertical walls
> of the water jacket make coolant leaks unlikely.
> > Anybody else have any comments?
> > Paul Lamar ...No rotor no motor.
> > I believe in line 11 'oxidize' should be 'oxidizes'.
> > Also, the sentence that follows might be clearer to
> some if it read 'Heat
> the JB Weld tubes in 150 F hot water just before
> mixing to reduce its
> viscosity so it will flow into crevices.'
> > Bill Garrett
> > Thanks Bill. Better sentence construct.
> > -- > Paul Lamar ...No rotor no motor.

The teflon noted as 4" wide will not fit inside the
spacer which requires a 2.5" wide slide. This leaves
only .25" on the sides of the 2" holes. McMaster Carr
now stocks 12" x 12" teflon. Much more expensive.

John Prendergast

Thanks John. Yes I need to fix that text file too.
http://www.rotaryeng.net/fund-of-intake.txt
Can't always keep up with changes that McMaster Carr makes.

3/8th Teflon is easy to cut with a hack saw, saber saw, sawsall or
wood cutting band saw.

The up side to 12" by 12" is there is enough Teflon to make four
slides. The cost per slide goes down. That does not do the
homebuilder much good but the cost per slide throttle is lower
if you are making four :) Perhaps we can talk Doc into selling
parts as well as complete slide throttles.

Paul Lamar

Paul,
When winding transformers with Al coils, the ends of the coils are brushed
with a SS brush while immersed in a molten solder bath. The reformation of
the oxide film starts immediately when in air. Should the critical surfaces
be hand brushed with a SS brush while covered with an epoxy film?

Colin Smith


Sounds like a good idea. JB Weld takes four hours to set up.
Way back in the middle sixties we where making bonded
aluminum race car chassis. We used a caustic etch on
the aluminum before we bonded it. In some cases we anodized
the aluminum parts as epoxy sticks much better to anodized
aluminum.

Paul Lamar ...No rotor no motor.

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