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#11839930 - 09/20/16 05:32 PM Mercury XR 4 Power Trim Problem
DREAMIN TEAM Offline
Outdoorsman

Registered: 10/03/06
Posts: 52
Loc: Azle Tx.
Have a 1990 XR 4 that the trim and tilt work fine static with no force. When running down the lake under pressure it will not trim up unless I get of the gas . then I can trim up some and try again. Have checked fluid level and bypass seem OK. Need help.

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#11839946 - 09/20/16 05:43 PM Re: Mercury XR 4 Power Trim Problem [Re: DREAMIN TEAM]
Tommy Yetts Offline
TFF Team Angler

Registered: 12/14/02
Posts: 3387
Loc: Rockwall, TX USA
It's either bad O-rings in the system but more than likely the trim pump manifold assy. is bad. You have to replace the pump assy. as a unit it is not serviceable.
Unfortunately Mercury doesn't have a check system to see where the problem lies.


Edited by Tommy Yetts (09/20/16 05:44 PM)
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Tommy Yetts

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#11839970 - 09/20/16 06:04 PM Re: Mercury XR 4 Power Trim Problem [Re: DREAMIN TEAM]
DREAMIN TEAM Offline
Outdoorsman

Registered: 10/03/06
Posts: 52
Loc: Azle Tx.
Thanks Tommy. I was afraid of that. Now I have to find a good pump assy.

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#11840586 - 09/21/16 07:31 AM Re: Mercury XR 4 Power Trim Problem [Re: DREAMIN TEAM]
gary purdy Offline
TFF Guru

Registered: 05/24/03
Posts: 10428
Loc: Littlefield Tx & Lake A. H. US...
I would replace the complete t&t because it could have a pressure check valve stuck. If it was a seal or O ring the unit would bleed down while setting.
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“The world will not be destroyed by those who do evil, but by those who watch them without doing anything” GOD IS GOOD

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