Shift Cam And Follower Question (1963 Merc 1000)

bh357

Chief Petty Officer
Joined
Jun 12, 2003
Messages
471
My outboard was not wanting to shift at all. It was in reverse and I gave it a little throttle, and I heard a ratcheting noise. When I tried to shift into forward to pull back to the dock, it did not want to shift. Dropped the lower unit, and I couldn't turn the prop shaft at all. Lower unit was stuck in reverse. Had to have a shop pull the bearing carrier due to it being froze in there good and solid. Picked up the disassembled lower unit today. I can't see anything that looks obviously wrong. All the gears are in good shape, all the needle and roller bearings are fine. I pulled the clutch out, and inspected and reassembled it. I have to put a lot of force on the follower to move the clutch, but it does feel like a stiff spring, and the clutch does slide freely, just a lot of resistance from the spring. The only parts that look like they have any wear are the follower (where it contacts the cam), and the shift cam. Please take a look at the attached photos and let me know if the wear looks normal.<br />Also, does anyone have any other ideas as to why it wasn't shifting? When I first dropped the lower unit, I pulled the shift shaft bushing, and the shift shaft snapped to where the top end was wedged rearward in the opening.<br />Sorry about the long post.<br /><br />
Shift%20Cam%20and%20Follower%201.jpg
<br />Shift Cam and Follower<br /><br /><br />
Shift%20Cam%20and%20Follower%202.jpg
<br />Shift Cam and Follower<br /><br /><br />
Shift%20Cam.jpg
<br />Shift Cam
 

highaltitude

Petty Officer 3rd Class
Joined
May 16, 2004
Messages
82
Re: Shift Cam And Follower Question (1963 Merc 1000)

its hard to tell if the parts are ok from the pictures. i would replace them when reassemblin the lower unit. its been my experience that the control box and cables are usual suspects. reinstall the lower unit and try shifting the gearcase where the cable hooks up to the engine. that should at least tell you whether it is the gearcase or the control box/cables. good luck
 

jimmbo

Supreme Mariner
Joined
May 24, 2004
Messages
14,027
Re: Shift Cam And Follower Question (1963 Merc 1000)

they look fine to me.
 

bh357

Chief Petty Officer
Joined
Jun 12, 2003
Messages
471
Re: Shift Cam And Follower Question (1963 Merc 1000)

Thanks.<br />I guess I'll just put it back together and do a better job with the adjustments before I use it.<br /><br />What is a normal amount of wear on the clutch dogs? The corners are rounded slightly, but probably no more than 1/32" radius.
 
Top