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George, the rotor housings had some wear - but no
gouges or groves, no missing chrome - so they were probably OK to reuse
again. However, there was what appeared to be "chatter" wear - strips
across the chrome at regular intervals. When you rubbed your fingers along
them I could detect a faint wave like pattern (valleys and peaks). So
decided with new rotors and seals to go with new rotor housings. Those
were used ones and who knows how many miles they might have had.
Well, I was quite surprised at the amount of wear
on the seals - they were brand new 150 hours ago but the seals were badly
grooved and worn - now I am certain that wear was greatly accelerated by the
poor condition of the seal slots - but still. In any case, new stronger
seals are going to be used next - as well as additional of an air filter.
I personally don't think an airfilter would have made any difference in the apex
seal breaking - but, I also noticed that the rotor metal oil rings were worn
outside the specs and they were new 150 hours ago. So I do believe I have
had some accelerated wear due to the dust in and around my hangar over the past
two years. Since a filter is cheap, I'm going to stick one
on.
Ed
----- Original Message -----
Sent: Friday, April 22, 2005 6:23
PM
Subject: [FlyRotary] Re: All Parts have
arrived, Whew!
Ed,
Were the old housing junked because you spat the
apex seals?
I just got a report that one bloke in Victoria
Aust is only getting 200 hrs out of new seals before they break - I wonder
if it's the same problem? I'm pretty sure it is!
George ( down under)
Ok, folks, the fun begins. Got the last
of the parts in today, so can start the assembly tomorrow. Waited for
UPS to deliver the oil control rings all day - so was down in the dumps
when 1600 rolled around and no UPS truck. So maundered down to
the mail box and their wedged into its opening was a USPS package - not
UPS!
Going to sit down tonight with a bowl of pop
corn and watch Bruce T perform the assembly part. I noticed that
the transcript did not have anything on the reassembly - so assume that I
either got tired of listening to Bruce, figured that the assembly was just
the reverse of the disassembly - or lost that part.
Got all the rotor parts in plastic sandwich
bags marked for which rotor, which side of rotor and which apex. For
most parts it really doesn't matter but, for instance, is very important
when replacing the oil control seals to put the springs back correctly
according to direction of rotation and side of the rotor. Also
important on the side seals to get them in the right slot or else all that
work trimming the side seals to get that precision fit is lost.
First time I've actually had new rotors and
housings - I like the looks - though not necessarily what they
cost. But, Bruce gave the best price out of three quotes I
got. Just wanted you to know.
Ed
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