Hells' bells John, 1650 on takeoff is stone cold. I normally saw 1760
- 1800 on a NA 13B. Turbos normally run higher (pre- turbo) than
NA.
BTW, which side of the turbo are you measuring? Temps are lower
down-stream. Another observation - A turbo with LESS restriction will give
higher EGT readings down-stream of the turbine so this could be normal.
Tracy
----- Original Message -----
Sent: Saturday, April 15, 2006 8:33
PM
Subject: [FlyRotary] Typical EGT
Rotarians,
When I installed my T04 turbo I must have damaged
the EGT probe. I was
seeing 500F on take-off. Today I installed a new
probe and it looks like
the new turbo runs a lot hotter than the old one.
While installing the
new probe I noticed that the ceramic coating on the
turbo had turned to
dust.
On take-off today I saw 1730 and the EGT
alarm went off. I backed off
the throttle and flew with it down around
1600, but that only gets me
around 4500 rpm and zero boost. Bring it up to
5000 rpm and I see 1650.
This is with the mixture a little higher than mid
scale. Richen the
mixture a tad and I can reduce EGT by 30 F or so. If I
bring the rpm up
to 5300 the EGT is up to 1700 pretty quickly. Oil and
coolant temps are
fine at around 180 - 190. I put 3.3 hours on the plane
today with no
other issues, but at 4500 rpm I don't get there very fast.
:(
What do other rotary flyers consider max EGT, and what could be
causing
it to be so high (if this is really
high)?
John
N96PM
60.5 Hrs.
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