Trim pump hoses 1977 Mercruiser 228

[John Churchill]

I have a 1977 SeaRay SRV220 that is in generally decent condition, was running until it stripped the steering spindle. I got an A1Gen1 outdrive to replace it and got the spindle nut off by drilling holes in the gimbal housing, but cracked the casting trying to drive a seized cotter pin out of the lower swivel pin. So had to pull the engine. I dummied out and did not mark where the hydraulic hoses from the outdrive went. I thought I would remember easily. Well, my Dad got sick and died, then Hurricane Ian damaged my big sailboat and this project got put aside. I marked everything else and everything is back together. BUT...I cannot for the life of me figure out where these 2 hoses go. I have two hoses from the trim pump going to the reverse lockout switch, one hydraulic type hose and another nylon (I assume return line). There is only one remaining port on the bottom of the pump. Pump is a Prestolite I believe. I also have a Oildyne pump that came with the Alpha, but it only has 2 ports. I have looked on the web and cannot find a hose routing schematic, nor have I been able to discover and ports elsewhere that I can plug the outdrive hoses into.

Pictures to follow.

 

[John Churchill]

Pics

 

[TWorline]

You have the line hooked up correctly on the pump. The braided line goes from the pump to the outdrive, the nylon line is the return from the reverse switch. The other line hooked to the reverse switch comes from the outdrive. So pressure goes from the pump to the outdrive up ports (the ones closest to the transom) on the trim cylinders returns from the down ports (the ones closest to the prop) to the reverse switch and then from the reverse switch to the pump via the nylon line.

 

[John Churchill]

Thanks. Just what I needed

 

[TWorline]

You are welcome.