Power trim/tilt drops

[RedNecker]

I have a 2005 25HP BigFoot with power tilt/trim.<br /><br />If I set the tilt up for low water run & get the throttle to 1/2 it drops the motor to full vertical position. The boat weights about 1000#.<br /><br />But if I dock the boat & set the tilt up it will stay that way for days.<br /><br />I have been told Merc designed the tilt not to stay up when at 1/2 throttle or more. Is this correct or is something wrong?<br /> I could not find any adjustments for the tilt motor in the manual.<br /><br />The motor has 14 hours on it. The dealer where I purchased it has no Southern Hospitality.<br /><br />Thanks,

 

[Laddies]

Re: Power trim/tilt drops

it is not suppost to stay up at 1/2 throttle or any thing much above an idle, for saftey reasons

 

[RedNecker]

Re: Power trim/tilt drops

Then the power trim/tilt is only to be used when the boat is not moving?? <br /><br />Why then is it allowed to work while the motor is running?<br /><br />I thought it was to provide operation in low/shallow water & to get the most efficient angle for the boat/motor operation.<br /><br />My old manual tilt had a lock for any angle operation.<br /><br />Thanks for your input,

 

[RedNecker]

Re: Power trim/tilt drops

Is the 2005 merc 25HP bigfoot/power tilt supposed to run at any speed with the motor at <45 degree tilt?<br /><br />Mine will not run at any speed with any tilt. <br /><br />But the tilt works & will hold for many days at the dock.<br /><br />Anyone?

 

[stan_deezy]

Re: Power trim/tilt drops

Rednecker,<br /><br />not sure if this helps but here goes a couple of thoughts:<br /><br />1. My Mariner 40 4Cyl also has power tilt and I cursed it for weeks because the minute I got up any speed the tilt dropped straight back; then I read the manual; above 2000rpm it will drop to a maximum 20 degree tilt due to safety reasons.<br /><br />2. Since it's a 2005 engine go back to the store and get them to check it over? Just in case?<br /><br />Sorry, it's all I can think of; full of the dreaded 'flu bug and head feels full of cotton wool............

 

[RedNecker]

Re: Power trim/tilt drops

Thanks for the update. <br /><br />I guess I just paid a lot of money for a useless power trim. Why do people need a trim guage if the trim will not stay set at a decent speed?<br /><br />I purchased the motor from Ed's Super Marine Store in Richmond. The guys at their dock would not even take off the cardboard carton & help load it in my truck. They took a fork lift & moved it to the center of their parking lot & left it there.<br /><br />If I had not waited a month for the motor & prepaid for it I would have left it.<br /><br />My wife & I were trying to remove the cardboard carton with no tools & several people watched us. Finally, after about 10 minutes, the salesman we dealt with got a knife & came out to help. Between the three of us we got it in the pickup truck & tied down. It weights about 180#.<br /><br />The pickup had a topper & it was 3" too low for the cardboard carton to fit.<br /><br />So I do not think I will ever be back to Ed's for any reason.<br /><br />The motor is great other than the trim/tilt thing.<br /><br />Thanks again for the reply.

 

[RedNecker]

Re: Power trim/tilt drops

Ok, I got it now. Merc must have been sued & lost a pile of money for letting the trim stay up.<br /><br />The trim setting is now 20 degree max. If the trim is more than 20 degrees & the motor RPM goes over about 2000 it drops the trim back to 20 degrees..<br /><br />Anything over 20 degrees up to 90 degrees is called tilt.<br /><br />Since the transom I have has about a 20 degree reverse slant then the max trim I can get is vertical. WOW, that is good for the money spent.<br /><br />If I can not find an adjustment to set the 20 ^ out from vertical then I have to add a 3" spacer for the bottom motor mount bolt to get the trim motor to the vertical position as the default instead of -20 degrees..<br /><br />If motors are to be run from vertical to trim up, WHY are the transoms slanted back about 20 degrees at the top?<br /><br />The more I think I know, the less it makes sense.

 

[stan_deezy]

Re: Power trim/tilt drops

Perhaps someone knows how to disable the tilt sensor?<br /><br />That would allow the engine to run above 20 degree tilt at more than 2000 rpm???<br /><br />Anybody got any clues?