Picked up a 2001 135Optimax. Stupid me didn't have the hours checked and it has 985 hours of which 80-90% of the hours are at very low RPM's of 2000-2500/per the ECM. No hard fault codes could be pulled off the ECM unfortunately.
Compression and spark are solid which is why I "rolled the dice" on this thing. It now mounted to my boat. Hours scare me but if maintained decently it's like putting 80 hours per year on which doesnt sounds like a lot to me..maybe it is? But, the motor doesnt run properly as of now and I'm trouble shooting. That aside for now, if I can get it running properly I was thinking of taking the off-season to put in new pistons, rings, bearings etc, hone cylinders (if they mic to spec) and close it back up (I understand there is much more to it but for the sake of my question , keeping it basic).
At that point, do I basically then have a new motor?? What parts do the high hours affect which causes catastrophic failures?
Or do I get this thing running and hope I get a few seasons out of it? I picked it up for $2k and got $1600 for my 60hp so I'm not in bad shape money wise, unless ofcourse this thing blows up the first time I run it.
I successfully rebuilt a '89 60hp so I have a great understanding of opening a block replacing cylinders, etc, etc. A completely different animal is the OPTI, I know, but once yuo get the block on the table I'd imagine its all the same. I'm not afraid of the challenge lets put it that way.
Thank you for any thoughts on this post!
Compression and spark are solid which is why I "rolled the dice" on this thing. It now mounted to my boat. Hours scare me but if maintained decently it's like putting 80 hours per year on which doesnt sounds like a lot to me..maybe it is? But, the motor doesnt run properly as of now and I'm trouble shooting. That aside for now, if I can get it running properly I was thinking of taking the off-season to put in new pistons, rings, bearings etc, hone cylinders (if they mic to spec) and close it back up (I understand there is much more to it but for the sake of my question , keeping it basic).
At that point, do I basically then have a new motor?? What parts do the high hours affect which causes catastrophic failures?
Or do I get this thing running and hope I get a few seasons out of it? I picked it up for $2k and got $1600 for my 60hp so I'm not in bad shape money wise, unless ofcourse this thing blows up the first time I run it.
I successfully rebuilt a '89 60hp so I have a great understanding of opening a block replacing cylinders, etc, etc. A completely different animal is the OPTI, I know, but once yuo get the block on the table I'd imagine its all the same. I'm not afraid of the challenge lets put it that way.
Thank you for any thoughts on this post!
