Re: tilt hyd. rams/pistons
I don't know why it wouldn't work - just that it didn't with mine. The old pump raised the existing smaller rams, but they wouldn't do down. After rebuilding one ram, (it was very stiff), they went up fine and would go down, but would not lock in place when down. Then I was left with trying to find out if the reverse lock out mechanism (which is a separate unit in these old systems) was just out of adjustment or was bad. Finally gave up and went with the new pump. From doing the research I discovered that the old pumps were high pressure, low volume - the newest pumps are low pressure, high volume.
The pump I bought was, I believe, the newest one from Mercruiser. It had fittings for quick disconnect hoses which I couldn't even find listings for. It also has a new "weather tite" style of wiring harness instead of the old spade terminal style plugs. (Similar to what you might see in a new GM car). I was able to put fittings in to match my hoses. But the pump would just run and not lift the old rams.
Now, it COULD be that I didn't bleed them completely... but I don't think so. As mentioned, they worked with the old pump, but not the new. When I stuck on a pair of used larger rams it worked instantly.
