O-540 questions...

[ckhd]

So the engine in the Skybolt I'm building just happens to be a Lycoming O-540-A1C5, probably out of a Commanche. It has been converted to have a sump suitable for inversion/aerobatics.

My questions are:

1. Since this engine is not an "aerobatic" engine (i.e. having an AE prefix), is there anything I need to worry about?
2. It seems that someone told me that the AE engines have a larger bearing in the front to help withstand the increased gyroscopic forces the propeller causes during maneuvers. Is this true?
3. The engine has been mounted on the airframe for at least two decades without being run. The plane has always been hangared and the engine covered (with either the cowling or plastic). What do you think about needing to tear it apart before using?

Thanks in advance!

 

[canadianbolt]

 

[darylat8750]

 

[Neil]

 

[DamoH]

 

[ckhd]

 

[Skybolt540]

 

[darylat8750]