New Mercruiser Tilt Problem

[golver]

I need some help please. This is the only thing keeping me out of the water right now.<br /><br />I put in a new tilt/trim pump and 3-button harness in an 81 Welcraft V20.<br /><br />The tilt and trim was working ok after the new pump was installed, though it would move up and down super slow, painfully slow. <br /><br />Now that I lowered it all the way down, it will not come back up? It was going up and down before<br /><br />The buttons work and the pump runs, but the outdrive does not move. While experimentating before it was all the way down, I noticed that it would still lower, but will not go up.<br /><br />It was going up and down before.

 

[tommays]

Re: New Mercruiser Tilt Problem

if the pump is running it sounds like you dont have all the air out of it yet<br /><br />you may have to help the drive up while someone runs the pump after a few times it should purge all the air out<br /><br />dont let the tank get low on oil or you will have to start over<br /><br /><br />tommays

 

[golver]

Re: New Mercruiser Tilt Problem

I did put a bunch of oil in it before I used it the first time. I am guessing without looking at the bottle, maybe 1/2 a quart. How much oil should it take? <br /><br />There is a VENT screw on the pump not far from the fill hole on top of the reservoir. Should I fill till it pours out the vent hole?<br /><br />Is it possible to overfill? <br /><br />I kind of ran thru this already working the drive up and down to work the air out, though I never went all the way down. If it is not the issue, where should I look next?<br /><br />Would this also cause the drive to raise and lower so slowly?<br /><br />Thanks you in advance. I really apprecaite the advice.

 

[tommays]

Re: New Mercruiser Tilt Problem

if its not air and its a brand new pump then a cylinder could be leaking internaly<br /><br />but air and a low oil tank whould be my first guess<br /><br />tommays

 

[golver]

Re: New Mercruiser Tilt Problem

What about battery?<br /><br />Could it be a battery issue? If the battery was losing charge would that effect the speed it went up and down, even if the trim pump sounded like it was running strong?<br /><br />Is is possible to overfill the fluid? Can I open the vent and pour fluid in till it come out the vent, then close and try it?

 

[Bt Doctur]

Re: New Mercruiser Tilt Problem

sounds llike it might be air bound,to bleed:remove rear pivot pin, allow rams to hang down, cycle rams, check oil level, cycle rams.leave cap off pump in case you put in too much oil.

 

[golver]

Re: New Mercruiser Tilt Problem

How do I "cycle" the rams?

 

[tommays]

Re: New Mercruiser Tilt Problem

just by running the pump as i said before you may have to HELP the drive move the first cycle<br /><br />or if there is a lot of air you may need to crack the fittings open on the rams to allow some air out like bleeding brakes<br /><br />all of this assumes that you are pumping oil !!!!<br /><br /><br />tommays