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Taking it apart is the easy part!!! I've disassembled 3... and the 2nd
and third have been quite quick and easy (keep in mind I wasnt saving
seals though, so I didnt track where they came from)... Some of you
may remember I got a batch of 3 on ebay months ago.. these are the
engines im referring to.
Reassembly.. my FIRST reassembly took place about a month ago, and I
will admit that it was slow, maybe 6 hours.. but much of that was being
over cautious and stopping to refer to the video numerous times. ALSO a
part of that period was doing a crash disassembly on engine #2 and
scavenging a rotor from it to replace the one we found was not useable
due to drop damage by me.. removing and cleaning the new rotor took
about 45 mins total.
IF you have the proper tools, the necessary parts, a second set of
hands and the right reference material, you can do it in a day. And I'm
saying this as a ROOKIE!
Dave
kenpowell@comcast.net wrote:
A piston engine can have a mild seizure and still run pretty
well; well enough to not even realize that there was a seizure in
fact. I agree with Rusty and doubt that the rotors and side housings
were damaged under the light load that Rusty describes. However, there
is also the other possibility that there was damage. Yes, those are
the two possibilities - there either was or was not damage. There is
only one way to know for sure. It only takes a weekend to pull ther
motor apart. Then you know for sure and will have confidence in the
motor. These things are as simple as a two-stroke. As I said earlier,
I agree with Ken W. that the engine needs to come apart. Rusty, don't
be indimidated by what the unknowledgeable say about taking a wankel
apart; it really is easy (but will take all weekend for the
amateur). Several of the guys here have taken their first rotary apart
while commenting on the progress to the list. Everyone has come back
saying how easy it is.
Ken Powell
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Original message --------------
Hi Rusty;
Given the fact that you're certain there was
no seizure, I wouldn't hesitate to run it. I would still attempt to
have an oil analysis done if possible. You say that you have no oil
from the filter, but did you drain the pan? Even though most of the oil
is missing from the pan, there should still be enough below the pick-up
tube to drain. As the oil returns to the pan directly from the engine
before going to the filter, I would expect that any possible metal
debris would be in the bottom of the pan. Even if you did drain the
oil, removal of the pan would still allow inspection for any heavy
pieces that may not have drained. However if you have any missing
pieces that are big enough to be found in this manner, then you would
have likely heard that destruction as it happened.
Do a proper compression check, oil check, put
in a Mazda cooler, indulge in some fibreglass ductwork, then fire 'er
up. Run a couple of hours on the ground, have oil checked again, then
circle that airport. I'm betting that within a month you'll have it
back in the air and you'll be tinkering with something else on it,
trying for that 3000fpm climb.
Todd Bartrim (thinking about how data logging
would answer so many of Rusty's questions)(and ours :-)
RV9Endurance
13B Turbo Rotary
C-FSTB
"The world will
always have a place for those that bring hard work and determination to
the things they do."
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