My RV-6a O-320 cylinders 2 & 4 run hot.
I have changed the baffle material and sealed leaks, replaced Bendix mags with p-mags, new plugs, wires, etc.
Both p-mags are timed the same.
If I run on the right p-mag only, the temps all come down and are close in temp below 370 degrees.
If I run on both p-mags or the left one the temps will increase on #2 & #4 going over 400 degrees unless I keep the RPM under 2400.
My oil cooler is mounted on the baffle behind #4. I currently do not have the oil cooler shutter but need to install one before winter. Even with 97 degree days my oil temp is around 188 degrees.
I'm wondering if I am dumping too much air through the oil cooler and not enough pressure differential to properly force air through #2 & #4 fins.
This still doesn't explain for the temp discrepancies on the left as opposed to the right p-mag.
I am going to try to put a forward angled piece of metal at the rear fins of 2 & 4 and see if that helps.
Has anybody had an issue with the baffle mounted oil cooler causing the cylinders in front of it to run higher?
https://photos.google.com/photo/AF1QipOJ4ZjUjBNKDe5haPUzfS3yZVd_lZs-IX8qUCRT
https://photos.google.com/photo/AF1QipMDzP7V7noYiaH_tacwMn24QBxAhPcIxCzH8Vwz
Thanks for any feedback.
I have changed the baffle material and sealed leaks, replaced Bendix mags with p-mags, new plugs, wires, etc.
Both p-mags are timed the same.
If I run on the right p-mag only, the temps all come down and are close in temp below 370 degrees.
If I run on both p-mags or the left one the temps will increase on #2 & #4 going over 400 degrees unless I keep the RPM under 2400.
My oil cooler is mounted on the baffle behind #4. I currently do not have the oil cooler shutter but need to install one before winter. Even with 97 degree days my oil temp is around 188 degrees.
I'm wondering if I am dumping too much air through the oil cooler and not enough pressure differential to properly force air through #2 & #4 fins.
This still doesn't explain for the temp discrepancies on the left as opposed to the right p-mag.
I am going to try to put a forward angled piece of metal at the rear fins of 2 & 4 and see if that helps.
Has anybody had an issue with the baffle mounted oil cooler causing the cylinders in front of it to run higher?
https://photos.google.com/photo/AF1QipOJ4ZjUjBNKDe5haPUzfS3yZVd_lZs-IX8qUCRT
https://photos.google.com/photo/AF1QipMDzP7V7noYiaH_tacwMn24QBxAhPcIxCzH8Vwz
Thanks for any feedback.