Hi all, just found this forum today, hope you can help.
We had a new experience yesterday. As we were trying to plane at about 1800 -2000 rpm the wife and I heard and felt a double clunk. We also think we heard some type of a whirring noise, but not too sure on the noise. I stopped the boat and checked the prop, it was ok. So we tried again and the same double clunk happened. Pulled the engine cover, no weird noises or smells. Playing it safe, we putzed back and called it a day. We have an '84 merc 470 with the alpha (all original and no hourmeter). FYI, it was the same type of clunk we always get when we shift into gear. Sometimes I get the double clunk when shifting into gear. We don't plan on keeping the boat more than a another year or 2, so I don't want to sink anymore $ in it than necessary. I called around and was told it could be just an adjustment to the shift cable or the dog clutch could be on it's way out. Haven't touched it yet, looking for insite. Thanx
We had a new experience yesterday. As we were trying to plane at about 1800 -2000 rpm the wife and I heard and felt a double clunk. We also think we heard some type of a whirring noise, but not too sure on the noise. I stopped the boat and checked the prop, it was ok. So we tried again and the same double clunk happened. Pulled the engine cover, no weird noises or smells. Playing it safe, we putzed back and called it a day. We have an '84 merc 470 with the alpha (all original and no hourmeter). FYI, it was the same type of clunk we always get when we shift into gear. Sometimes I get the double clunk when shifting into gear. We don't plan on keeping the boat more than a another year or 2, so I don't want to sink anymore $ in it than necessary. I called around and was told it could be just an adjustment to the shift cable or the dog clutch could be on it's way out. Haven't touched it yet, looking for insite. Thanx
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