O-290

[helimech]

Hey guys, Been awhile since I messed around with one, but what is the difference between an O-290B and an O-290D? Don't have any books in the shop anymore on it and just curious, it's to help a friend out. Thanks in advance.

 

[skydivinguy]

Ten horsepower?!?

 

[charlesmelot]

Per Lycoming SSP 204 there is no O-290-B. There is an O-290D2B that is 140 HP which is 10 HP more than the O-290-D which shpows 130 HO. I was always of the belief that the "D" was 125 HP and the "D2" series were 135 HP.
Charlie Melot Zephyr Aircraft Engines

 

[helimech]

Thanks Charlie, that is the consensus around here. Appreciate the help.

 

[trip]

It been a few years but I thought my Pacer had a 125hp O290-D on it. It wasnt enough!