Re: 78 80HP Power Trim, Where Can I find One?
I'm pretty certain that your motor requires what is referred to as a "Type 1" PTT. No longer made so you will need to find a good used one.
It consists of 2 hydraulic cyls mounted to the motor (replaces the existing 2 shock absorbers), two mounting brackets for the cylinders, a pump/reservoir that mounts IN the boat, 4 hydraulic hoses that connect the pump to the cylinders and a 3-button control panel.
This type of system was used by Merc from the late '60s thru to the mid '80s I believe. The style changed when they integrated the pump/reservoir with the hydraulic rams and got rid of the need for the hydraulic hoses.
Keep your eye on ebay, craigslist, kijiji etc. I bought a complete motor with PTT for $200. The motor was just for parts but the PTT works perfect.
Here is a link to the service/installation manual for the system you need.
http://picasaweb.google.com/Smig06/PTTManuals#
