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Trim problem

Anything related to the operation of your boat. Steering, Bilge Pumps, thru-hulls, bottom paint, etc.
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Topic author
Roscoe waterbug
Posts: 1
Joined: Tue Aug 01, 2017 4:03 pm
Vessel Info: 1997 Wellcraft Excel 21x

Trim problem

Postby Roscoe waterbug » Tue Aug 01, 2017 4:07 pm

Wellcraft Excel 21x 5.0 mercruiser engine. Trim on throttle on works to put trim down. Up trim does not function. Trim switch by gauges does work to put trim up.
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sloch24
Posts: 18
Joined: Wed Aug 26, 2015 3:40 pm
Vessel Info: 2003 Wellcraft Coastal 270 I/O
Location: Western Basin, Lake Erie Ohio
Has thanked: 3 times
Been thanked: 3 times

Re: Trim problem

Postby sloch24 » Thu Aug 03, 2017 7:16 am

Is this an Alpha drive? There are switches on the side of the drive (mounted to the gimbal where it pivots). I don't remember exactly because it's been years, but if they're not functioning correctly you'll have this exact problem.

Basically, the switch that says you're in the "trailering" zone (height) is probably made when it shouldn't be. You might get by with adjusting the switch (It's just a couple of screws) or you might need a new switch.

If you google this problem I'm sure a procedure for setting them will show up. I had a similar issue with my 470 Merc years ago.

Good Luck!
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sloch24
Posts: 18
Joined: Wed Aug 26, 2015 3:40 pm
Vessel Info: 2003 Wellcraft Coastal 270 I/O
Location: Western Basin, Lake Erie Ohio
Has thanked: 3 times
Been thanked: 3 times

Re: Trim problem

Postby sloch24 » Thu Aug 03, 2017 7:19 am

Here are some instructions on how to adjust it. I've heard that this website is a plethora of information for Merc owners.
http://www.mercstuff.com/trim_limit.htm
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