tilt/trim problem

[BENJA]

when i put my motor in reverse and give it some gas it comes out of the water. could it be that the tilt/trim has a leak or that its wore out?<br />if its wore out is it expensive to replace? the motor is a 76 115hp<br /><br />Thanks <br />Ben

 

[Fishin4fun]

Re: tilt/trim problem

does she tilt up and down ok? If she tilts up and down ok then it most likely isnt a leak, but if you can tilt her up and she will ease back down, then you have a leak. Tilt her all the way up, open the fill and vent on the pump, and refill the resivoir. Once you have refilled the resivoir, recap it. put the vent screw back in, screw her down flush then back her off 1.5 turns. Then let the motor down and operatet the pump to trim her up. Repeat until resivoir is full. You could just be low on fluid causing this condition. Just make sure your vent cap on the resivoir is not closed as it can cause a vapor condition in the power tilt trim unit.

 

[BENJA]

Re: tilt/trim problem

thanks, what should I use to fill it hydrolic fluid? she comes up and down with no problem but when its up she does come back down on her own slowly

 

[clanton]

Re: tilt/trim problem

What does pump look like and location? I dont have manual that old.

 

[clanton]

Re: tilt/trim problem

Post serial number of engine, I may find photo on Merc parts express.

 

[BENJA]

Re: tilt/trim problem

the serial number is 4396399 its a 76 115hp thanks for helping on this, other wise I woudnt have any idea to try and fix it<br /><br />Ben

 

[Chris1956]

Re: tilt/trim problem

Benja, I have a 1977 Merc with T/T. It has a knurled knob on the valve body under the trim pump. This knob may be turned to allow manual (hand) tilting, when necessary. I recommend that you check to see if it is in the normal position. The pump had instructions on which way (CW or CCW) to turn the knob for normal operation. If this does not cure it, it may be the teflon seals in the trim cylinders. Repair kits are available ($40 each plus labor), or you can look for used cylinders to replace them. It is likely only one is bad, and you will need to isolate it.

 

[clanton]

Re: tilt/trim problem

Merc Parts Express said bad number.