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1. 08:17 AM - Re: Service Letter JSL 014-2 (AirEupora)
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| Subject: | Re: Service Letter JSL 014-2 |
I completed the inspection at 85 hours. I removed all the valves and measured
the valve springs, I cleaned the heads and the pistons of the carbon build up.
The valve were lapped and reinstalled. #5 head had a bad set of rocker arm
bearings. These were replace with new. All the push rods were replaced with
the 1mm shorter rods. Once all back together and flown for one flight to check
things out. I did a compression check. #4 cylinder was low, but I had put
a new set of rings on it about fifteen hours before and I believed that they
were not set in let. I then flew to Copper State and back. About fifteen hours
and check compression and check torque in the heads. Compression had come up
on #4 and all were over 70/80. The re-torque of the heads found maybe three
bolts loose. I changed the oil and filter and send off an oil sample to BlackStone.
Which came back OK. I have one hundreds on the engine right now and
completed an hundred inspection. It has taken me almost three years to get this
engine tuned in. All my EGT are within 40 degrees during cruise flight. They
go crazy on takeoff. CHT have been a major problem, but I now have very tight
seals around the cylinders and the temp are within limits, but I'd like to
see them lower. Cruise flight the hottest is about 150 to 160 C. I have to
watch the CHT on climb, but none are going about 180 C.
Most of the time I do a step climb. When I took the Applicability Assessment,
I score in Group 2, with a score of 10.
I have reset my blade pitch and will start flying again when the WX warms up and
I can finish painting my plane.
Rick Stockton
N120EJ Europa XS,
Jabiru3300L, Whirl Wing Gnd Adjustable
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