mystery trim problem

[macojoe]

When I installed mine tabs, I had the same problem, but after a few trips (like 10 maybe) it stopped I have to say I don't think I got it bled out very well, so the more you use them the air gets worked out. Has been 5 years now, and have never added a drop since.

[steplift20]

its not trim tabs its the trim motor attached to the engine

[smokeonthewater]

leaking seal on cylinder.... I bet that if you trim full down and hold for a few seconds you will see evidence of the leak..... rainbow sheen on water or oil spots in driveway

I had a trim leak this past july which turned out to be a cracked trim hose from transom to drive which only leaked when pressure was built up from down trim or boat in reverse in water

[macojoe]

my bad!! I use to have a Yamaha that the screw would come lose on one of the trim cylinder and leak when in the water, took a bit to track that down?

[steplift20]

so in the fully down position thats where the most pressure is?

[steplift20]

just added oil again about 2 0z still see no leak what i would like to do is replace the whole bracket with the trim assembly and keep the motor
can i get one and how hard would it be to do that

[phatdaddy]

what kind of motor & year? if an ob, older mercs, you have to take one of the side brackets off, omc, you should be able to get to under the ob.

[smokeonthewater]

Originally Posted by steplift20

so in the fully down position thats where the most pressure is?

well when trimming up, the pressure is under the piston but trimming down it is on top of the piston and pushing against the pop of the cylinder... so down is when it is most likely to leak externally.

[steplift20]

i dont have my boat by my house its by my sons house , so how do you tighten it and what tools do i need to check it