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Re: [FlyRotary] New rotors, New housings
Ed,
Ken's comments reminds me to say that I remeasured
the width of the RX8 rotor for a more accurate measurement and it appears after
a number of measurements that the RX8 rotor are only slightly wider, this being
.04mm in the gear area and only .02mm at the apex.
This I believe won't be a problem at the RPM and
power settings we generally use. However it would represent a small
problem in Ken's application as he uses NOS at take-off and at that high
power the E-shaft does flex a little - this causes the rotors to skew slightly,
binding at the apex areas. Ken already has this problem with the RX7
rotors and skims them to eliminate this problem. This is a remedy that many
in the racing game use as well.
I don't believe there's a problem with the
single rotor application and won't be skimming the rotor.
Hope that helps!
George ( down under)
I would look into getting 85-85 GSELE rotors with the 3 mm seals,
you would also need the weights to match them, then machine out your rotors
for a spare engine, you may need one to bale you out in the future, if you
keep this up you may knock me off the seat as president of the dead stick
club.
I am now running rotors machined out to 3 mm seals and at about
400 hrs on them I can tell by checking through the exhaust port that the seal
grooves are getting V'ed out and getting sloppy so I am now putting another
engine together, on this one the rotors are in prime shape so I think I will
run Tracy's 2mm seals.
Also I think that the groves may be hardened and by machining the
groves out makes them softer as they shouldn't have worn out in only 400
hrs.
Ken
Well, the decision
has been made. Thanks in part to the wife's continued interest in my
warm body on cold winter nights, the decision has been made to
purchase new rotors and rotor housings. $$ but apparently I am worth
it {:>)
I looked into
milling out the slots to 3mm and that would have been the cheaper approach -
but cheap approach is probably partly responsible for me being in this
situation - so going to try a different approach this time. Besides
leery of using a rotor which clearly has been subjected to sufficient loads
to scrape metal off its surface and peen over apex slot.
In the process of
getting quotes.
Ed
Ed
Anderson
Rv-6A N494BW Rotary Powered
Matthews, NC
eanderson@carolina.rr.com
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