1972 Evinrude Lark in process restoration service manual instructions

[jfl1960]

Restoring a 1972 Evinrude Lark 50 HP and would appreciate some help with service manual instructions:

1. Lower Unit: Pull at propeller shaft to overcome reverse lock (standard length) ? . ? ? ? ? . . . . . ? . . . . 700-800 lbs. (What does this mean and how do I do it?)

2. Service manual does not specify a torque value for installing the propeller, at least not that I can find.

Below are some pics of the before restoration and the progress I have made so far, the only seals that haven't been touched are in the lower unit, it was pressure tested and passed OK, no merky oil and no water in lower unit was found, forward and reverse are electric and function good so lower unit was sanded treated and painted without any internal servicing, new water pump installed, all seals in exhaust section and to power head are new, power head all new seals with new head, fuel pump, exhaust cover,and all electrical components new, full repaint individual on entire engine parts were bead blasted, etched, primed with zinc chromate and top coated with ORIGINAL Evinrude Gold with some VHT black krinkle valve cover paint on parts not submerged in water (this stuff is tough, painted my aluminum barbecue lid 5 years ago and not a chip or flake so far) used for accent on some small parts, still have the top cover to paint and cannot get any more Evinrude Gold, dealer all out and tells me no longer available, any suggestions? Anyway some help would be appreciated, thanks.

 

[F_R]

1: If you hit an underwater obstruction, the lockdown feature is designed to release and allow the motor to tilt up. That is supposed to happen at the specified force. How do you test it? I dunno, never have tested it. But what I did do is, when checking out a new motor with a customer, hunker down behind the motor (boat on a trailer) and give a mighty yank rearward on the lower unit. The lockdown releases with a loud bang, like you broke something, and customer's eyes bug out. But not to fear, nothing broke and the system works to see another day.

 

[jfl1960]

I see it's the spring loaded lockdown in behind the pivot assemble, thanks makes sense now, if someone can help out with prop installation and torque then I would be back on track, thanks again for that answer.