jerky tilt/trim on 115 Evinrude

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uwboater

Cadet
Joined
May 17, 2004
Messages
12
The tilt/trim on my 115 Evinrude is very jerky when you lower it but is smooth as silk when you raise it up. After searching prior tilt/trim posts I realize the problem may be low fluid levels and/or air in the cylinders. Question is...not having a manual on hand where would one find access to the fluid reservoir and check the levels?
 
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miket

Seaman
Joined
Aug 11, 2003
Messages
59
Re: jerky tilt/trim on 115 Evinrude

per manual:<br />Check once per year or every 50hours<br />Tilt engine up and engage tilt support<br />Slowly open fill cap allowing air to escape,<br />add OMC power trim/tilt & power steering fluid or GM Dextron II.<br />Fill cap in picture is at at base of hydraulc shaft holding engine up, appears to be a horizontal cap. You must then go thru 5 cycles of up down motion to purge air trapped inside due ot low fluid.<br />Just happend to have manaual at my desk as i have a frozen shift rod problem<br />Mike T
 
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uwboater

Cadet
Joined
May 17, 2004
Messages
12
Re: jerky tilt/trim on 115 Evinrude

This may be a stupid question but do you go through the 5 cycles of up down motion with or without the fill cap on?
 
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uwboater

Cadet
Joined
May 17, 2004
Messages
12
Re: jerky tilt/trim on 115 Evinrude

Took a look at tilt/trim last night. I did not see a "fill cap at the base of the hydraulic shaft holding engine up" I did however see a large flat head screw near the center of one of the cylinders (right cylinder when looking stern to bow). That was the only thing that seemed like a fill cap. I could not budge the thing when trying to unscrew it. There was also a hex nut near the top of the left cylinder with a rubber hose coming out of it. Could this be the fill cap?
 
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DJ

Guest
Re: jerky tilt/trim on 115 Evinrude

The large flat head screw is the one. You may need an impact driver to break it loose.
 
U

uwboater

Cadet
Joined
May 17, 2004
Messages
12
Re: jerky tilt/trim on 115 Evinrude

Filled up the fluid using a marine grade tilt/trim hydraulic fluid and cycled the trim/tilt several times then let rest for approx 15 minutes then repreated. Did a total of 3 times. The tilt/trim is still very jerky on the way down. Had no sign of foaming fluid when I topped off after each cycle and the fluid level was always at the top of the fill cap. Is this a tilt/trim that shold be bled or are they self- bleeding? Not sure what else could be the problem.
 
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