if they appear cracked and worn on inspection... yes..

BT

"Ben Jackson" wrote in message
...
On 2005-04-05, Jay Honeck wrote:
As the rubber mounts age, the engine sags a bit, and they become stiffer,
transferring more vibration to the airframe.

Is it really worth replacing the rubber mounts on a mid time engine with
a lot (10-15 years) of calendar time on it?

--
Ben Jackson

http://www.ben.com/