Mercruiser trim is all the way up, but won't go down.

MelLandry

Petty Officer 2nd Class
Joined
Jun 7, 2006
Messages
117
I have a 1979 Mercruiser 228. After running all day today I came back to wash down. The trim went all the way up, but now won't go down. The "automatic stop" has not worked on the trim for years, and the indicator hardly works as well. When I hit the trim up buttons, I can hear the motor run, but nothing when I try to trim down. Please let me know where I should start to investigate.

Thanks in advance.
 

BigBK

Petty Officer 3rd Class
Joined
Jun 23, 2009
Messages
95
Re: Mercruiser trim is all the way up, but won't go down.

I have a 1979 Mercruiser 228. After running all day today I came back to wash down. The trim went all the way up, but now won't go down. The "automatic stop" has not worked on the trim for years, and the indicator hardly works as well. When I hit the trim up buttons, I can hear the motor run, but nothing when I try to trim down. Please let me know where I should start to investigate.

Thanks in advance.

Here try this and see if it helps solve the problem. May be the down solenoid switch.


http://www.boatfix.com/merc/Techbk/97/97hs6.pdf
 

snoski

Seaman
Joined
Aug 23, 2008
Messages
69
Re: Mercruiser trim is all the way up, but won't go down.

Start by cleaning all of the electrical connections.
 

Fishermark

Vice Admiral
Joined
Oct 19, 2003
Messages
5,617
Re: Mercruiser trim is all the way up, but won't go down.

When I hit the trim up buttons, I can hear the motor run, but nothing when I try to trim down.

The fact that you can hear the motor running would rule out an electrical issue. It may just be stuck. Try standing on it while someone trims it down.
 

rockyman

Petty Officer 2nd Class
Joined
May 24, 2008
Messages
148
Re: Mercruiser trim is all the way up, but won't go down.

try checking the fluid level , that was what was wrong with mine , i had to stand on it to get it down and while it was down i filed it up and now its fine .
 

Quadruplecccc

Petty Officer 2nd Class
Joined
Apr 3, 2006
Messages
133
Re: Mercruiser trim is all the way up, but won't go down.

I had a bad ground to pump. Would go up but not down, good luck!
 

Howard Sterndrive

Rear Admiral
Joined
Nov 5, 2008
Messages
4,603
Re: Mercruiser trim is all the way up, but won't go down.

Go up, and then quickly down. Often works for me.
 
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