Is a 73 85 hp & 77 70 hp interchangeable

[Letzgoboatin]

I have a 1973 Mercury 85 hp with no trim & tilt. I have not been able to find a trim and tilt set up for this motor, but I did find a 1977 Mercury 70 hp with a bad cylinder with a complete trim and tilt set up that works. My question is will it work on my 73 85 hp? Are there any other interchangeable parts between these two motors?

 

[Chris1956]

Re: Is a 73 85 hp & 77 70 hp interchangeable

Well, Neither of those motors showed PTT as available new. However, both motors use the same transom bracket shocks. I would therefore think that the PTT would swap between them. The PTT unit would be two PTT cylinders, two PTT brackets and a PTT pump/reservoir unit that mounted in the boat, and 4 hydraulic hoses. Is that what you are seeing?

 

[Letzgoboatin]

Re: Is a 73 85 hp & 77 70 hp interchangeable

Thanks for your response. That is what I am seeing. Just by looking at the two if them, looks like everything with work in my 73 85 hp. Just wanted to make sure before I go tearing into to it.