Greetings,
I've noticed that the #4 cylinder on my IO-360AIB6 runs colder than the rest of the cylinders; CHT ~30F and EGT ~90F colder than the hottest cylinder #3. (typ: 305/1310F @ WOT, 24.5 MAP, 2550 RPM, 11.8GPH, OAT ~65F)
I am using a custom plenum, and I have 1 washer installed between #3 and #4 and the rear baffle. The oil cooler is mounted on the firewall, and fed via a 3" duct located above #4 cylinder.
Compression on #4 was 78/80 at the last cond. insp. (Feb 2014).
The engine is an Aerosport power IO-360-A1B6, dual Lightspeed Plasma III, all Lycoming parts.
Any tips, tricks, sage advice from the hive-mind would be appreciated.
Cheers!
Brian
I've noticed that the #4 cylinder on my IO-360AIB6 runs colder than the rest of the cylinders; CHT ~30F and EGT ~90F colder than the hottest cylinder #3. (typ: 305/1310F @ WOT, 24.5 MAP, 2550 RPM, 11.8GPH, OAT ~65F)
I am using a custom plenum, and I have 1 washer installed between #3 and #4 and the rear baffle. The oil cooler is mounted on the firewall, and fed via a 3" duct located above #4 cylinder.
Compression on #4 was 78/80 at the last cond. insp. (Feb 2014).
The engine is an Aerosport power IO-360-A1B6, dual Lightspeed Plasma III, all Lycoming parts.
Any tips, tricks, sage advice from the hive-mind would be appreciated.
Cheers!
Brian