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Mercury XR 4 Power Trim Problem #11839930 09/20/16 10:32 PM
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DREAMIN TEAM Offline OP
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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.

Re: Mercury XR 4 Power Trim Problem [Re: DREAMIN TEAM] #11839946 09/20/16 10:43 PM
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Tommy Yetts Offline
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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.

Last edited by Tommy Yetts; 09/20/16 10:44 PM.

Rockwall Marine
Tommy Yetts

www.rockwallmarine.com
Re: Mercury XR 4 Power Trim Problem [Re: DREAMIN TEAM] #11839970 09/20/16 11:04 PM
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DREAMIN TEAM Offline OP
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Thanks Tommy. I was afraid of that. Now I have to find a good pump assy.

Re: Mercury XR 4 Power Trim Problem [Re: DREAMIN TEAM] #11840586 09/21/16 12:31 PM
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gary purdy Offline
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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
Re: Mercury XR 4 Power Trim Problem [Re: DREAMIN TEAM] #11863541 10/04/16 11:45 AM
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DREAMIN TEAM Offline OP
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Well now ISO tilt trim assy for older Merc. Type II two wire. Anyone seen one. Thanks bang

Re: Mercury XR 4 Power Trim Problem [Re: DREAMIN TEAM] #11863660 10/04/16 01:16 PM
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gary purdy Offline
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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
Re: Mercury XR 4 Power Trim Problem [Re: DREAMIN TEAM] #11865646 10/05/16 01:42 PM
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gary purdy Offline
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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
Re: Mercury XR 4 Power Trim Problem [Re: DREAMIN TEAM] #11867166 10/06/16 11:14 AM
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DREAMIN TEAM Offline OP
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Looking for complete assy, Design II. Not sure replacing motor and pump will take care of problem due to symptoms.

Re: Mercury XR 4 Power Trim Problem [Re: DREAMIN TEAM] #11874345 10/11/16 01:10 AM
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TTT

Re: Mercury XR 4 Power Trim Problem [Re: DREAMIN TEAM] #11874697 10/11/16 09:54 AM
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TLW Online Content
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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

Last edited by TLW; 10/11/16 09:56 AM.
Re: Mercury XR 4 Power Trim Problem [Re: DREAMIN TEAM] #11876533 10/12/16 12:34 PM
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lloyd Offline
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pm sent

Re: Mercury XR 4 Power Trim Problem [Re: DREAMIN TEAM] #11882107 10/15/16 10:23 PM
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PM returned. Thanks

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