David Morcombe
Recruit
- Joined
- Dec 9, 2005
- Messages
- 4
I have a 76 Johnson 115 Longshaft, hasn't been used for a couple of years and I am going over it getting it ready for use. There were small bits of metal in gear oil, so I took it apart. I found found pitting in many of the teeth of the driveshaft pinion gear and several of the teeth of forward gear are showing what looks like some surface fatigue, looks like it is on the way out. Reverse gear looks ok. <br />The bearing surfaces seem OK. What I'm wondering is how much to replace and if OEM or alternative manufacturers are better value for money. Should the gears and associated bearings be replaced as a set, or just the ones showing wear?<br /><br />Another thing that concerned me is the bearing carrier (on prop shaft) and the oil pump were eary to remove, needed hardly any mechanical assistance. This didn't seem right according to the manual which said they'd be very tight and hard to extract. I don't know the history of the motor, but could this looseness be caused by previous work and is it a problem?