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Almost ready to aviate, but
taxiing with engine that has been getting increasingly rougher, even after
overhauling the Bendix RSA and testing the Plasma II CDI ignitions okay.
En ine sat for years, labelled preserved, but for about 5 years
not run after complete rebuild by Performance Airmotive about 8 or 9
years ago.
Now, taxied and othrwise run-up
for less than 3 hours, is becoming increasingly less inclined to
idle.,
Initially would idle smoothly
down to about 650-700rpm...
Then the lower plugs
fouled/carbon and oil...replaced with new plugs at 2 hrs.;
then in another hour of ground
running, runs strongly at 1500-2500 rpm, and when below 1500 mostly aggressively
lean, still the bottom plugs again fouled in less than an hour, and minimum
idle speed increased to about 900 rpm, running so rich it fouled plugs even with
agressive leaning... suspected fuel injection servo had dried and cracked
diaphrams, having sat dry for many years, so had it overhauled
(Kelly)...
Ran it two days ago, and the
minimum idle speed without competely cutting out, was 1000 rpm. Runs strong at
higher rpms.
Will run a compression test
tomorrow.
I want this mill to run
perfectly before I fly it.
Any comments or suggestion
welcome.
Terrence
L235/320
N211AL KGRE
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