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Old 24 July 2014, 09:20   #1
Country: UK - Wales
Town: Pembrokeshire
Length: no boat
Join Date: Oct 2012
Posts: 23
Alpha One Gen 2 Problem

Hi Guys,

I was just wondering if any one can help me out. Starting to tare my hair out a little.

I have a Alpha one gen 2 Mercruser leg fitted to a Mercruiser 4.3L carb engine on a 21 ft Bayliner.

I have been experiencing some problems with the leg. The shift cable was change at the end of last season, as the gimbal bearing was due a change so everything was changed.
Ive been using the boat now for the past few months an no hic ups. I went down to the boat last weekend and something quite frightening happened. I put the control leaver to its normal position to put the boat into gear but nothing happened only a grinding noise coming from the leg. I then pushed it over more and still nothing just grinding. It eventually clunked into gear and shot off out of the whole at 3000rpm. Wasn't much fun in the middle of a marina.
This happened a few times to me over the next few mins. I eventually put the boat back onto the berth. Over the weekend I tried it again. Sometimes it would happen and some times it wouldn't.

Any one have any suggestions what I should have a look at first?

quietsparrow is offline   Reply With Quote
Old 24 July 2014, 15:51   #2
Country: UK - England
Town: Gillingham Dorset
Boat name: Green Marlin
Make: Quickilver
Length: 5m +
Engine: 90hp Mariner
Join Date: Jul 2012
Posts: 285
Usually there is a pivot button that delatches the throttle on the control lever. Then test it again.

Sounds like a shredded dog clutch in the lower unit to me though

cptsideways is offline   Reply With Quote
Old 25 July 2014, 13:35   #3
Country: UK - England
Town: Looe
Make: Delta
Length: 4m +
Engine: Mercury
Join Date: Apr 2004
Posts: 1,332
Sounds like the cable is completely out of adjustment.
Black Dog Marine
Turbodiesel is offline   Reply With Quote
Old 25 July 2014, 14:52   #4
Peter_C's Avatar
Country: USA
Boat name: Uh...a kayak?
Length: 4m +
Join Date: Dec 2009
Posts: 1,483
Shut the boat down and put it in gear (This will line the gears up but may require gently turning the prop while someone tries to put in gear). Than take it out of gear, and put it back into gear, do this a few times. How does it go in? If clunky or not right it could just be the shifter cable.
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