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#403817 - 05/08/08 08:38 PM Shifting, shift cable, huh?
casualboater Offline
Admiral

Registered: 01/14/04
Posts: 1497
Loc: Highland, Michigan

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I thought about adding this to my thread on pulling the outdrive or 2-4-c, but even though it's part of the same project, it really is different.

I picked up a new bell housing gasket on the way home today (my local Napa carries some basic boat parts, gotta love that), and put the drive back on. Piece of cake, no project could really be this easy.

I made certain that the shifting system lined back up properly, but I've got a concern. When the shifter is in forward, the prop won't move backwards that good, but makes a bit of a clicking noise when you spin it forward. It's been a long winter, but I don't remember that sound. The opposite happens in reverse. Am I nuts, or is that ok? I'm hoping to fire up the engine on Saturday, and maybe even hitting the water, so I just want to not worry about it if it's ok.

A different issue, and this was a minor issue last season, the engine doesn't like to shift into reverse unless you give it a real firm shift, and sometimes have to go past the idle spot. Any tips on adjusting that?

I have to say it again, I can't even count the money I save because of this place!!
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#403819 - 05/08/08 08:43 PM Re: Shifting, shift cable, huh? [Re: casualboater]
BillyB Offline
Admiral

Registered: 10/29/04
Posts: 7364
Loc: Peoria, Illinois
It's been a while since I have had an Alpha, but I think the clicking is normal. That's the dogs on the gears sliding past each other.
I'd say that since it does it one way in F and the other in R, that it's operating normally.
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#403839 - 05/08/08 11:20 PM Re: Shifting, shift cable, huh? [Re: BillyB]
Frantically Relaxing Offline
Never get out of the boat
Admiral

Registered: 02/07/03
Posts: 6095
Billy is correct-- Below is a pic of the shaft, reverse gear and clutch dog out of my Mariner outboard, which are very similar to the Alpha parts. Notice the teeth of the dog that contact the forward gear are "ramped". The teeth within the forward gear are ramped in mirror image. The dog is spring loaded-- when the dog and the gear are connected, the square edges of the teeth make a firm connection. But, if for any reason the prop should turn slower than the shaft, the ramps will let the dog move back on the shaft and "ratchet", which is what's happening when you turn the prop backwards while in gear, that's your clicking noise. Now, if you'll look at my pic, you'll notice the reverse-side of the dog ISN'T ramped, it just has 3 "tabs", which fit into the cavities between the tabs in the reverse gear. In your Alpha, both the forward and reverse gears are ramped, just one of the differences.



As for your hard-to-get-into-reverse problem...The reason I had this thing apart was because the dog shaft-pin was broken in half...




Because the dog is spring-loaded towards the forward gear, going into forward is no problem even with a broken pin. However, the pin is the 'pushing point' of the dog, and when trying to push the dog towards the reverse gear, the broken pin resulted in about 1/8" of slack, and the dog wouldn't move far enough to engage the reverse gear---

HOPEFULLY your problem is just that your cable needs adjusting or tightening. You should be able to get the cable adjusted so it will shift into reverse satisfactorily without it affecting forward and neutral shifting.
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