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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: 57
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: 3415
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)
_________________________
Rockwall Marine
Tommy Yetts

www.rockwallmarine.com

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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: 57
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: 10536
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.
_________________________
“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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#11863541 - 10/04/16 06:45 AM Re: Mercury XR 4 Power Trim Problem [Re: DREAMIN TEAM]
DREAMIN TEAM Offline
Outdoorsman

Registered: 10/03/06
Posts: 57
Loc: Azle Tx.
Well now ISO tilt trim assy for older Merc. Type II two wire. Anyone seen one. Thanks bang

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#11863660 - 10/04/16 08:16 AM Re: Mercury XR 4 Power Trim Problem [Re: DREAMIN TEAM]
gary purdy Offline
TFF Guru

Registered: 05/24/03
Posts: 10536
Loc: Littlefield Tx & Lake A. H. US...
You might be able change it to the 3 wire by adding the relay assembly for a 3 wire.
_________________________
“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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#11865646 - 10/05/16 08:42 AM Re: Mercury XR 4 Power Trim Problem [Re: DREAMIN TEAM]
gary purdy Offline
TFF Guru

Registered: 05/24/03
Posts: 10536
Loc: Littlefield Tx & Lake A. H. US...
I have a 2 wire motor and pump. Took off of an early 225 Pro Mod Merc than customer wanted changed to a single ram trim. Will get a picture and add here.
_________________________
“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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#11867166 - 10/06/16 06:14 AM Re: Mercury XR 4 Power Trim Problem [Re: DREAMIN TEAM]
DREAMIN TEAM Offline
Outdoorsman

Registered: 10/03/06
Posts: 57
Loc: Azle Tx.
Looking for complete assy, Design II. Not sure replacing motor and pump will take care of problem due to symptoms.

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#11874345 - 10/10/16 08:10 PM Re: Mercury XR 4 Power Trim Problem [Re: DREAMIN TEAM]
DREAMIN TEAM Offline
Outdoorsman

Registered: 10/03/06
Posts: 57
Loc: Azle Tx.
TTT

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#11874697 - 10/11/16 04:54 AM Re: Mercury XR 4 Power Trim Problem [Re: DREAMIN TEAM]
TLW Offline
Extreme Angler

Registered: 11/16/06
Posts: 2004
Loc: ft worth
http://www.ebay.com/itm/2000-Mercury-150-HP-EFI-2-Stroke-2-Wire-Outboard-Power-Tilt-Trim-Freshwater-MN-/172351315759?hash=item2820f05f2f%3Ag%3AtocAAOSwAuZX5EZ-

looks like ya gotta copy n paste..........or item # 172351315759


Edited by TLW (10/11/16 04:56 AM)

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#11876533 - 10/12/16 07:34 AM Re: Mercury XR 4 Power Trim Problem [Re: DREAMIN TEAM]
lloyd Offline
Outdoorsman

Registered: 05/09/06
Posts: 174
Loc: alvarado
pm sent

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#11882107 - 10/15/16 05:23 PM Re: Mercury XR 4 Power Trim Problem [Re: DREAMIN TEAM]
DREAMIN TEAM Offline
Outdoorsman

Registered: 10/03/06
Posts: 57
Loc: Azle Tx.
PM returned. Thanks

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