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The current engine I have is brand new with
approximately 20 hours on it. It has a standard mixture control and
replaced the previous FADEC controlled engine.
I can not seem to correct my number 2 CHT
problem. The previous engine did not seem to have the problem to this
extent. The mod of building a recess in the oil cooler plenum was done
long ago.
I cannot climb with 31.5" MP, full rich
without #2 hitting 400F at about 11,000 feet. Climb speed is 165
knots. Today's ground temp was 70F. I have made a clear path for the
air by relocating hoses, spark plug leads, brackets and anything that might
disturb the cooling air. The only thing left to move is the air
conditioning hoses which are right in the way of the air as it enters the
cowling.
All the baffling is very tight and everything is
the same as was on the other engine.
Has any one had to use a larger injector to keep
number 2 cool. Number 2 EGT is the first to peak. All the other 5
CHT's run within 3 degrees of each other with number 2 being about 25 degrees
higher. EGT's are running in the 1450 range with #2 being the
hottest.
Straight and level at 17,000 feet indicating over
200 knots the #2 CHT will stay just under 400 degrees 31.5" and full
rich. When I try to lean it out the TIT's start above 1650.
Has anyone got any suggestions?
I will be looking at the injectors
tomorrow.
I wonder what the trade in value of a slightly used
red knob control cable is?
Dan Reagan
IVP 670 hours and wishing I had my FADEC
back
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