cylinder heat temperature
- Thread starter M1
- Start date
M1
FRIEND
Vancouver BC Canada
David, thanks.
I only have one flight with the engine monitor, and see 375 on cylinders 1 and 2, but 3 and 4 are significantly higher. 3 and 4 are running 460+ on climb out. Baffles, baffle seals are all in good shape, and the engine seems to be running just fine.
Mike
I only have one flight with the engine monitor, and see 375 on cylinders 1 and 2, but 3 and 4 are significantly higher. 3 and 4 are running 460+ on climb out. Baffles, baffle seals are all in good shape, and the engine seems to be running just fine.
Mike
fobjob
MEMBER
Salt Lake City, Utah
It would be more useful to know some things in addition:
1. what air temperature?
2. what power setting? RPM?
3. what oil temp?
4. what altitude?
5. what prop?
6. what pressure differentials between both sides of the baffling at 100 mph?
7. what EGT?
8. what humidity, even....
There have been several extensive threads on this, just search on CHT...
1. what air temperature?
2. what power setting? RPM?
3. what oil temp?
4. what altitude?
5. what prop?
6. what pressure differentials between both sides of the baffling at 100 mph?
7. what EGT?
8. what humidity, even....
There have been several extensive threads on this, just search on CHT...
RedEye
Registered User
Side Lake , MN
3 & 4 will tend to run hotter than 1 & 2 simply because they are deeper in the cowl. #4 should be the hottest. Is your oil cooler up front or on the baffle in back ? If its in back this can affect temps as the air is not all forced down through the fins on the cylinders. I have a single probe on #4 and it will run 375 all the time.
M1
FRIEND
Vancouver BC Canada
I'll have to do some more checking.
2600 rpm on climb at 70 mph
2500 rpm on cruise getting about 85 mph
41" pitch borer
stock O320 150 hp
floats
outside air 40F
oil temp 200F
front mounted oil cooler with baffle
#3 and #4 have highest egt, probes 2" from the exhaust flange
cht's drop during cruise, but still 450F on #3
2600 rpm on climb at 70 mph
2500 rpm on cruise getting about 85 mph
41" pitch borer
stock O320 150 hp
floats
outside air 40F
oil temp 200F
front mounted oil cooler with baffle
#3 and #4 have highest egt, probes 2" from the exhaust flange
cht's drop during cruise, but still 450F on #3
