Info Merc Opti 150

[THEFERMANATOR]

I've been researching these lately as well WILLY. From what I have found the worst ones are late 2000-2001. The 2.5L(135/150/175) engines are said to be pretty good, but the 200/225's from 2000-2003 are the worst. My BIG question would be why did the 03 get rebuilt? I refer back to my recent post under the repair section about outboard rebuilding, why? A 2003 shouldn't really be needing rebuilt unless there was a failure or if it was an ex commercial use engine. Then there is the issue of what was done in the rebuild. Definately consult with a surveyor, espescially one that knows OPTI's as they do have some issues to watch for. the 2000-2001 injectors are known to cause engine failure. Also make sure and familiarize the surveyor with the history of the engine. A DFI out of warranty could get expensive REAL quick as an air pump will set you back over a $1K.