Reply To: New to me Mark 10

[Tom Alexander]

Hi : Yesterday I had a few minutes to try to get this troll lever aligned with the troll lever arm. It turns out it is not possible to use the hole drilled thru the troll lever to tighten the set screws on the troll lever into. To do that requires the the arm to contact the ‘pan’ and restrict rotation from full ‘start’ (way past the detent) to midway toward ‘run’. Using the detents on the unit that fits into the throttle control bracket (I cannot make out the part on my copy of a Mark 10 Parts list with exploded diagrams Revised Jan 1960) I determined that the range of ‘throw of the Troll Lever is really only between the ‘S’ of the word Start and about the last ‘L’ of the word Troll on the indicating/instruction plate. In the picture of my ‘resolution to the problem’ the scribed mark on  the top of the shaft aligns with the hole drilled in the shaft. As you can see I had to tighten the set screws onto the bare shaft (missing the hole by far) of the lever to achieve the throw on the lever to achieve all three (Start, Run and Troll) settings with ‘Run’ somewhere in the middle of throw and ‘Troll’ and “Start’ on either side. Using the detent to  ‘feel’ for the setting needed will be the course of action during operation I believe. If someone knows anything more or can advise if what  I have is a bastard fix or part replacement someone has done in the past please let me know. Also If anyone knows where I can get a service manual of this Mercury Mark 10 S.N. 1120389 I would certainly appreciate it. I did download a copy of a Parts Manual that was mentioned in a thread on water pump impeller replacement and am curious if this is the best quality copy around. Many of the smaller parts pictures and unclear but so far it has been a great help in describing parts.   Thanks All!    Tom Alexander