Trim leaks down can't remove pin to rebuild

[sajet]

Just got back from the shop where I had a new tilt/trim motor installed. Now it works fine except it leaks down pretty fast. Sounds like hydraulic cylinder need to be rebuilt but they can't get it off. The pin to remove hydraulic assembly is corroded tight and the mech says he will bust the assenbly if he hits it any harder. Tried heat no luck. What are my choices? Mech says a used assy can be a solution since the powerhead is in great shape and so is the lower unit. Any suggestions for getting out the pin? any suggestions for finding a complete assembly without powerhead? How screwed am I?

Is it possible that it will cure itself (stupid I know but I have heard that sometimes this can happen with these hydraulic cylinders especially if they have set idle for a year or so)

Please someone help.

SAJET

 

[iwombat]

Re: Trim leaks down can't remove pin to rebuild

I've gotten two really stubborn buggers out now by putting it on the hydraulic press and hitting it with heat. Any automotive shop will most likely have a 16-ton press.

A good arbor press would probably do the job too.

 

[sajet]

Re: Trim leaks down can't remove pin to rebuild

a second opinion says that since shop was unable to move manual release valve and impact valves that this could be the problem with it leaking down. I am trying to figure out how they got it up in the first palce to get to the trim motor without unscrewing the manual release valve. It was in the down position when the motor failed and appeared to be locked down, at least I couldn't get it up to see the motor or other tilt/trim devices. So far the shop it is in hasn't broken anything but they are afraid to apply too much pressure for fear of breaking something. They are pretty cautious but as it is the trim/tilt does not work right. Something has to give short of taking it off and putting on a new engine. geeeez!

 

[HighTrim]

Re: Trim leaks down can't remove pin to rebuild

You did not mention a model of outboard, what are we talking about here?

What type of shop do you have it at? They are reccomending a complete new assembly bc they cannot trouble shoot it themselves, in my opinion.

Im going to assume you started with checking the fluid and bleeding the system? Are there any leaks present? Will it hold fluid?

 

[sajet]

Re: Trim leaks down can't remove pin to rebuild

Model is 1994 E200stlerr. Fluid is not leaking outside cylinder at all. New trim motor installed and works fine, motor goes up and down just fine but when up leaks down through the tilt position and also through the trim position. The tilt system is properly serviced with fluid. They could not unscrew manual release valve and cannot remove tilt cylinder pin due to corrosion. It is at Anchor Marine in San Antonio, they are a full service dealer, not cheap either.

 

[HighTrim]

Re: Trim leaks down can't remove pin to rebuild

I would be willing to bet that your problem is with the manual release valve then, leaking down.

 

[sajet]

Re: Trim leaks down can't remove pin to rebuild

I feel like it is a bypass problem of some kind. Sinc ethey replaced the trim motor which is why the boat was there in t he first place I gotta think it is something on the motor assy. How did they get to the mooer with the engine all the way down and the motor inop if not able to move the manual release valve?

 

[HighTrim]

Re: Trim leaks down can't remove pin to rebuild

There are other ways to release the pressure short of the manual release, just not as safe/easy.

What caused you to replace the motor in the first place?

 

[sajet]

Re: Trim leaks down can't remove pin to rebuild

Replaced motor cause it was rusted through and quit. No water entered under moter the seal/o ring did its job. There is corrosion on the nuts, bolts pins, etc. Not excessive in my opinion but its there and obviously causing the problems of the hyd cyl pin being frozen as well as the manual release valve screw. The shop says they tried an impact tool on the release screw and no luck. They assure me that they would breal the engine bracket if they were to apply any more pressure to the hyd cyl pin. I am still screwed. The engine leaks down to the stops including the trim pistons. I am afraid that there efforts were pretty adequate although nothing is broken yet. That may be next.