85 force 125 need help trouble shooting tilt trim

Patty85force125

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Jun 11, 2018
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I have a 1985 Force 125, I need more detailed step by step trouble shooting of trim & tilt. I just replaced a Chinese valve body which worked fine but was leaking from threads (all) where lines went in.I replaced this with a API unit at 2.5 times the cost. Now I have severe drift down of motor within minutes. I am not sure if this unit is bad out of the box or if I have other issues. I am following the Clymer manual and at the top of this forum for trouble shooting but need better clarification of which line is which. Can I disconnect all lines and plug to see if I have drift down to see if it is the valve body? Bottom line is I need a diagram of which line is what for all four lines. Also having a a hard time finding brass fittings, have gone to 2 ace stores.. Any help would be appreciated.
 

jerryjerry05

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May 7, 2008
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18,119
The fittings are break line fittings and can be gotten at NAPA or Auto Zone.

If you loosen all the lines? then you'll get no results.

The top posts in this forum has procedures for the leak down test.

If you replaced it before and it didn't leak down then I'd guess the new pump is bad?

Clymer manuals are good reading material if you have an outhouse and run out of TP :)
 

Jiggz

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Oct 23, 2009
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3,909
Here's a fluid diagram, assuming you have the same model and style. I've some notes to point on main valves in the VB.
 

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Patty85force125

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Thanks for the replies. Yes the Chinese VB worked except for the leaks. So the new API unit I believe is bad out of box. I wanted to formally trouble shoot it before I sent it back. Finding these fittings has been very difficult. I tried Ace (3 stores), Napa and Fastenal here in Denver with no luck. On a different note I did find the diagram I was looking for. I will try to post it.
It showes what ports with what lines went where.
at this point I will change out VB units out when I get new unit in. I hope that this is the problem and nothing new.
 

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Patty85force125

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I was finally able to get brake fittings, Auto Zone had them. I was able to trouble shoot and did verify the new API valve body is deffective out of the box. I am awaiting new unit under rma status. One thing that I did notice was that on this unit the bottom base went in super easy, and on the prior install it was super tight and had to use a mallet to get it in. Not sure if this means anything, has anybody experienced this?
 

jerryjerry05

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May 7, 2008
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If you need a hammer when you assemble trim @ tilt pumps and motors??
Then something is way wrong??

You might need a hammer to take it apart but not put together.

If you had to force it? it's possible the end of the armature didn't fit in the pump right?
 
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