We've received a date for the "KR Building and Flying" forum date and
time at Oshkosh, Monday, July 26 at 11:30 AM - 12:45 PM. I'm not sure
what the topics will be yet, but am open to suggestions. After the
forum, we'll adjourn to the flightline where we'll park our KRs, which
will be out front of Homebuilders Headquarters. We hope to see y'all there.
I was worried that I might miss OSH as the exhaust system on the KR2
disintegrated and I was facing building another one from scratch. But
thanks to Marc Baca and Doug Pearce, I now have a serviceable
replacement, probably built from the same fixture. Mike Sylvester flew
up today and assisted with the installation, which was a two man job due
to the extra width of my VW engine. Thanks Mike!
While the exhaust was off I did a valve job, replacing exhaust guides,
recutting the valve seats, and replacing the exhaust valves, as well as
the pistons and cylinders (just for good measure). I had 250 hours on
the Revmaster heads since they were installed, and they were leaking
pretty badly between the valves and seats, perhaps due to lead deposits.
It still ran great, but 116 psi compression numbers (down from 158
previously) had me concerned, even before the exhaust system failed. I
plan to run Decalin in the fuel to reduce the lead deposits (Aircraft
Spruce sells it). We'll see how that goes. Still, 250 hours is a
record between valve jobs for me, so I'm already impressed with the
Revmaster heads.
--
Mark Langford
m...@n56ml.com
http://www.n56ml.com
Huntsville, AL
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