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Tracy,
You mentioned the wall failure, I think that is fairly common in the earlier
model 13B's, I have one. When the engine was opened up this is what I
found (picture attached) Hopefully Ed problem will be something a lot
simpler.
Bob Perkinson
Trying to keep foot away from
mouth
Yes they are.
I know about Ed's remark about them looking too small but we've
sold over a thousand of these O-ring kits and never had a problem there.
A LOT of work went into specifying and sourcing them. They are custom
rings designed specifically for this application, not McMaster Carr
parts. The McMaster TES rings are close but slightly too large
(diameter) when at the high end of spec. They caused O-ring wall
failure in several engines.
Tracy (love the Mazda SUV - Zoom - Zoom!)
Are these TES
o-rings?
Mark
S.
Take a look at the
picture of the month on Tracy's web site. That is a picture
of the coolant spouting from Ed's engine when it was dead cold. When
he lifted the pressure relief lever on the coolant cap, it pressurized the
overflow tank. He knew then that there might be a problem. His
First thought was that the diameter of the O ring's that came in the
overhaul kit might have been a little small. I guess we will
hear exactly what the problem was when he gets the engine
open.
Bob
Perkinson
Hendersonville, TN.
RV9A N658RP Reserved
If nothing
changes
Nothing changes
Since Ed is
having to remove and disassemble the engine, I would guess it’s the
coolant o-rings. It will be interesting to hear how he discovered
the leak. For the benefit of the newbies on the group, we typically
monitor coolant pressure for signs of leaks. I’ve also installed a
coolant level sensor in my purge tank that should provide an advance
warning of low coolant level.
Mark
S.
If you guys
can humor me, what's the nature of that coolant leak? Is that the cover
that tends to gradually degrade? Is there any chance to sense that failure
before it gets significant? Like, do you experience fluid level change
gradually? Pressure change? How bout Post shut down change in pressure?
Know what I mean? Time vs pressure after
shutdown?
HI
everybody - this is Laura Crook. I am sure you've all
heard that Ed Anderson had another "event" - this time in LA while
visiting family. He actually has two issues - one is the his
brakes caught on fire -not rotary related  and the
other is that he has an internal coolant leak. So.... he has to
remove and overhaul the engine again.
Since
he is not near home he has no access to his documentation. He
wrote to me and asked me to post a notice to the list regarding the
overhaul notes that he developed and posted to his newsgroup a
few months ago. He thinks that a few people down loaded it and
one may even be in .pdf format.
He
REALLY needs somebody to email a copy of his overhaul notes to
the following email address:
-al
wick
Artificial intelligence in cockpit, Cozy IV powered by stock
Subaru 2.5
N9032U 200+ hours on engine/airframe from Portland, Oregon
Prop construct, Subaru
install, Risk assessment, Glass panel design
info:
http://www.maddyhome.com/canardpages/pages/alwick/index.html
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