2005 yamaha 115 4 stroke manual trim release wont open

[ted burdacki]

hi ,i have tried to unscrew the manual release valve.i used wd-40,pb blaster,and very large screw drivers,only to distort the metal at the screwdriver slot to the point of no use. any suggestions out there?

[boats.net]

Might try a hammer impact tool.

[ted burdacki]

if an impact screwdriver does not work,what is the next step?

[BaileysBoat]

The proper torque to seat the valve is only 2.2 ft/lbs. The assembly is tightened against o rings. As advised get a good quality impact driver with the correct bit and have at it. Might as well order a new valve assembly before you start.

Alternative is to pull the tilt and tim for bench work.

[ted burdacki]

thanks for the replies ,impact screwdriver,and a new valve.

[robert graham]

I'm pretty darn sure that the threads on that screw are left-handed, so you turn it to the right to loosen/unscrew it...maybe you're turning it the wrong way?

[BaileysBoat]

I'm pretty darn sure that the threads on that screw are left-handed, so you turn it to the right to loosen/unscrew it...maybe you're turning it the wrong way?

Yikes! Robert, you scared me for a moment. I had to double check the on line operators manual. Says counter clockwise to loosen.

But I wonder why the OP needs to get it loose? The valve is not something you need to use that often.

[robert graham]

I've not had any problems with the tilt/trim system, so never had a reason to mess with that screw. The tilt/trim system is a closed/sealed hydraulic system and the last thing I'd want to do is disturb or contaminate that fluid/system, so "let a sleeping dog lie" is my thoughts on it! I also understand that the hydraulic parts of these systems are not easily repaired and entire tilt/trim replacement can be required$$$$

[ted burdacki]

hi,the reason i attempted to loosen the trim valve was to try to lower the engine during the winter months ,when the boat was in a garage.i wanted to make some room by lowering the engine. there were no batteries in my boat. now that the valve screw slot looks like swiss cheese, i want to loosen it in order to replace it. also, there is an embossed arrow on the engine showing the proper direction to turn in order to open the valve.

[robert graham]

Which way does that arrow say to turn the screw to loosen it?

[ted burdacki]

hi,the arrow is showing counterclock wise.