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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: 3457
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: 10967
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” Remember what He has done and remember that He is not done yet! 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: 10967
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” Remember what He has done and remember that He is not done yet! 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: 10967
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” Remember what He has done and remember that He is not done yet! 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 Online   content
Extreme Angler

Registered: 11/16/06
Posts: 2118
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: 178
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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