1979 Mercury 800 Power Trim Tilt

eddiesweber

Cadet
Joined
Oct 5, 2020
Messages
7
I am trying to replace my manual tilt with a power trim tilt from the same era. It has 4 hoses, 2 cylinders and a pump. I bench tested it already and it is operating fine (picture 1).

I am now trying to install the new power cylinders and I wanted to make sure I am taking the right stuff off the old manual system.

First, there is a hole in the side of the power trim base plate and I am assuming it slips over the post that the top of the manual trim was attached to (picture 2).

Next, it looks like I need to remove the lower post on the lower end of the mounting bracket on the engine, where the bottom of the old cylinder used to connect (picture 3). I am assuming I need to remove small nut and bolt that is located on the outer side of the bracket towards the middle. My problem is that the nut and bolt a very rusted and hard to get off and I feel like I am going to strip the top of the bolt or break it off.

Before I continued, I was hoping someone would tell me if I am on the right track and if I do need to remove the lower post and the nut and bolt I mentioned. Also, is there anything else I need to remove? Any tips would be much appreciated!! I have searched all over I can't find anything on the subject. I'll try to do a video of the project once I figure out the process.

Thanks in advance
 

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