JP Richmond
Recruit
- Joined
- Aug 1, 2010
- Messages
- 5
Hello all,
In have a 1989 30LF on my jon boat. I hit a small bouy/line yesterday and about 30 minutes later, as we were pulling a tube, it revved a few times crossing a wake and within ten seconds it lost all high-speed torque. It wouldn't accelerate past a fast crawl without over-revving and losing torque. I crawled it in and it brought it home. Ran fine at really slow speed.
Figuring the impact was the cause (vs. fuel and other causes, coincidences being rare), I pulled the prop, looking for a signs of a "slipping forward thrust hub" (internet research).
The prop is banged up a bit, with the forward rim missing a small piece and bent in one spot. Looking into the forward end of the prop, I see chewed-up looking rubber surrounding the "spline channel" (my term). The thrust hub is just a large washer, all metal, and I don't see any way it can "grip" or "slip", since it rides the shaft forward the splines.
I drained the gearcase, and the oil is fresh with no evidence of water or metallic particles.
Any suggestions?
In have a 1989 30LF on my jon boat. I hit a small bouy/line yesterday and about 30 minutes later, as we were pulling a tube, it revved a few times crossing a wake and within ten seconds it lost all high-speed torque. It wouldn't accelerate past a fast crawl without over-revving and losing torque. I crawled it in and it brought it home. Ran fine at really slow speed.
Figuring the impact was the cause (vs. fuel and other causes, coincidences being rare), I pulled the prop, looking for a signs of a "slipping forward thrust hub" (internet research).
The prop is banged up a bit, with the forward rim missing a small piece and bent in one spot. Looking into the forward end of the prop, I see chewed-up looking rubber surrounding the "spline channel" (my term). The thrust hub is just a large washer, all metal, and I don't see any way it can "grip" or "slip", since it rides the shaft forward the splines.
I drained the gearcase, and the oil is fresh with no evidence of water or metallic particles.
Any suggestions?