Force 125 Crank Walk

[ladnerranger]

Hey, everyone. I gotta 1989 Force 125, and as the title suggests my crankshaft shifted downward, driving the flywheel into all the nice expensive electrical parts on the top motor. So I took the powerhead apart to examine everything and try to determine what went wrong. After taking it apart and examining the crankshaft/bearings, everything appears to be as it should, nothing obviously wrong. So my question is, has anyone else had something like this happen, and what did you do. Do I just put it all back together and hope it doesnt happen again. Any advice is greatly appreaciated. Thanks, Grant.

 

[pnwboat]

Re: Force 125 Crank Walk

Could it be that the crankshaft slipped out of the upper main bearing? The upper main bearing is just pressed on the end of the crank.

 

[ladnerranger]

Re: Force 125 Crank Walk

Ya, thats what appeared to happen. Whats the best way to prevent this from happening again. I was thinking some of the locktite for retaining bearing, but would that be enough?

 

[pnwboat]

Re: Force 125 Crank Walk

I think I would replace the upper bearing and do like you said....use some of the red loctite.

Upper main bearing is not that expensive.

http://www.outboardparts.com/chrysler/mall/chryforcetpminbrngs.htm