Originally Posted by Bobco
compressor blew on first one, trashed fuels rails. he fought with mercury for 3 years to finally get a new motor out of them, needless to say he is over the black motors.....
We have dozens of 250's in service with 1500-4000 hours on them. We get about 1000 hours before the compressors go. We have found that the air hose coming out of the compressor gets a carbon buildup in it, blocking the line, and then the compressor just beats itself to death. There are symptoms prior to failure, and if we catch them, then it is a 10 min fix and we save the compressor. Strange thing is that we only see this on Opti's from 2015-17, the older Opti compressors don't fail in this way, and just die from hours.