78 merc. tilt / trim problem

[catfish charlie]

guys i have a 78 merc. 140. the tilt and trim will work going down but not up. when i hit the up switch i hear nothing. the motor is in down position and i need to let it up.what do u think is the problem and how can i get the motor up since the up is not working. thanks alot

 

[dragonfukker]

Re: 78 merc. tilt / trim problem

It sounds like one of the coils on the trim motor/hydrulic pump is out. Try swapping the up and down coils around and see if that will work, but you will probally need to buy a new coil.

 

[timmathis]

Re: 78 merc. tilt / trim problem

If it has a release valve. Turn it and then you can lift it by hand. Tim

 

[catfish charlie]

Re: 78 merc. tilt / trim problem

where is this release valve located.. also how to i check the coil. any advice

 

[dragonfukker]

Re: 78 merc. tilt / trim problem

Originally posted by catfish charlie:<br /> where is this release valve located.. also how to i check the coil. any advice

take an electrical meter and test for continuity across the positive and negative side.

 

[SeaKaye12]

Re: 78 merc. tilt / trim problem

Charlie, if yours is like mine...the pump is mounted off the motor...on the floor.<br /><br />If so, the release valve is located on the front of the pump assembly. It's a knurled knob, and you turn it clockwise to release.<br /><br />Thanks for reading, Chuck