[bryanflood]

Does anyone know why there are so many different crankshaft bearings offered for Lycoming engines? The rebuild manual I have lists 3 different parts numbers for my crankshaft bearings.

18D19394
LW-16047 (alternate)
LW-11021 (alternate)

It seems like Lycoming is saying that you can just use whatever you want, or is there a preference to a part number? I noticed superior also says that you can use part number

SL11020


Can anyone help me figure out if there is some reasoning to this?

Thanks,

Bryan

 

[Tommy123]

Superseded numbers or may be oversized part numbers.

 

[az_gila]

LW-16047 is superseded by LW-11021

http://nebula.wsimg.com/670c250fc9d...A3E91CE7CAB506B89&disposition=0&alloworigin=1

The 18D19394 is superseded by 18D26096

https://www.lycoming.com/sites/default/files/SI1512-Sup 1.pdf

Oversize bearing have a dash number added with the oversize amount.

If your part catalog calls out the earlier number then either that number or the superseded number can be used.

 

[bryanflood]

Thanks Gil,

Exactly what i needed!

Bryan