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Post by 5string on Oct 10, 2010 0:25:09 GMT -1
We went out today and everything seemed to work perfect as it normally does. I noticed when I was trailering my boat that the trim did not sound like it normally does and when I got home I ran the motor up and down a few times and not only does it not sound smooth(sounds weak) as it did before today I noticed that when the motor is being trimmed down as it reaches the slow speed section of travel it begins tobounce or shake up and down until it reaches the slow speed section of travel.
I have owned this boat for just over two months now and the trim motor was replaced shortly before me purchasing the boat.
Also just for information just before we were leaving the lake today we ran through some really rough water between McKaskey Creek and Bethany Bridge to a point where the entire boat nearly came out of the water, I suspect that this is when whatever is going on happened.
You just gotta love those huge yachts around the Park Marina area.
Any hrlp would be greatly appreciated.
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Post by Fletcher on Oct 10, 2010 0:58:11 GMT -1
Sounds like the oil level might be low in it. Have you checked the level?
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Post by 5string on Oct 10, 2010 1:28:19 GMT -1
Not yet, we did not get back in until late this afternoon but I will tomorrow after church or Monday.
May be a dumb question but should the level be checked with the engine in the up or down position??
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Post by Fletcher on Oct 10, 2010 3:05:21 GMT -1
The trim piston should be about 1/2 I believe, or maybe all the way in not really sure, I don't know what kinda system you have on yours.
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Post by groundloop on Oct 11, 2010 12:40:08 GMT -1
May be a dumb question but should the level be checked with the engine in the up or down position?? Most engines have to be up to even have access to the trim fill plug. What you want to do is top off the fluid, put the plug in, run the trim up and down a couple of time, top off the fluid again, put the plug in, run the trim up and down a couple of times, ...... until it won't take any more fluid. Also, make sure the o-ring or gasket isn't missing on the fill plug. When I first got my boat I couldn't figure out why it kept losing fluid from the trim unit, 'till I figured out that the previous owner had lost that gasket.
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Post by soretoe on Oct 12, 2010 2:51:48 GMT -1
Sounds more like an electrical connection or batery problem to me.
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ProMo
Executive Member
Posts: 1,971
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Post by ProMo on Oct 12, 2010 10:39:33 GMT -1
www.mercurymarine.com has a maintenance print out for every motor they make, it has in detail how to maintenance your trim fluid, trim motor etc..etc, it also show you how to drain your gear case and even change your prop, you can print out any maintenance guide for your motor if you have a Mercury. I don't know if the other outboard Mfg companies offer this-Probably but the one Mercury marine has is very helpful
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Post by pbmang on Oct 12, 2010 15:07:04 GMT -1
You may try putting some grease on the tips of each of your trim rods. Most likely not the cause, but the bounching you are talking about sounds like something is sticking and that would be the first thing I would try. Plus, it takes 30 seconds and a dab of grease. Odds are though you simply have air in your hydrolic lines, and the bounce is the air going through the system.
Tilt your motor up, open the fill plug and fill. Put the plug in and cycle the motor up and down. Repeat until you can no longer put any more flud in the hydrolic motor.
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Post by 5string on Oct 16, 2010 21:46:51 GMT -1
Thanks for the help and input from everyone!! It appears as though it was a combination of air in the system and the nut in the pivot pin on te motor had become loose alloing the motor to sorta freefall without any sort of tension on the motor.
I bled the system repeatedly and tightened the nut a quarter to a half of turn and everything appears to be normal now.
The only thing that I can think is that the nut was loose or working its way loose and the sudden jar from the hard hit that we took last weekend just pushed it over the edge.
Thanks, David
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Post by Fletcher on Oct 16, 2010 23:46:34 GMT -1
Anytime David. Hope to see you on the water soon.
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