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Discussion Forum
Show Parts for Model:

3000 power steering valve

Author  [Modern View]
flyingace

07-26-2011 18:08:33
69.60.190.16



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There is a little spring relief valve on the power steering box that is leaking. The spring seems pretty loose, so I'm guessing I need a new one. The parts

diagrams says this part is no longer serviced.
Is there some substitute or other option to fix this?




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Sean in PA

07-27-2011 14:04:41
71.224.102.32



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 Re: 3000 power steering valve in reply to flyingace, 07-26-2011 18:08:33  
What did the oil look like when you opened it up?



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flyingace

07-27-2011 14:08:43
69.60.190.16



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 Re: 3000 power steering valve in reply to Sean in PA, 07-27-2011 14:04:41  
It looked like gear oil. Pretty clean gear oil even.



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Sean in PA

07-27-2011 12:07:48
71.224.102.32



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 Re: 3000 power steering valve in reply to flyingace, 07-26-2011 18:08:33  
I think that part 18 is for venting the lower gear housing, which should only have gear oil in it, and should not be under pressure. The only parts in that picture that should have power steering fluid or hydraulic fluid in them are part number 23, and parts 24-30, which are part of number 23. Part number 23 is the hydraulic control valve that controls the flow of the p/s fluid to the steering cylinders. The pressurized portion of the hydraulic circuit should not be vented. The only portion of the p/s hydraulic circuit that should be vented is the P/S fluid reservoir, and the reservoir is out hanging off the side of the engine either as part of the pump housing or above the pump depending on if it's an early or late pump.

Perhaps the control valve, part 23, is leaking p/s fluid to the inside of the steering gearbox such that you can't see the leak from the outside, and the gearbox is now full of p/s fluid and overflowing out of the vent, part 18. The only way to know for sure is to take it apart and see.

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flyingace

07-27-2011 13:07:33
69.60.190.16



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 Re: 3000 power steering valve in reply to Sean in PA, 07-27-2011 12:07:48  
Think I was mistaken about the PS fluid. It does look more like gear oil, but maybe diluted? #18 is the where the fluid is coming from, so maybe the
seal is allowing PS fluid into the housing.
I can test this by simply opening the filler plug and draining out the excess. If it fills up again and I lose PS fluid in a hurry, I know the answer. But getting that drain plug off is going to be tough... it's really stuck.

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flyingace

07-27-2011 13:36:01
69.60.190.16



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 Re: 3000 power steering valve in reply to flyingace, 07-27-2011 13:07:33  
Update - I got the filler plug off. No excess fluid out of the housing. Not sure

what's going on, but is it possible the #18 valve is simply shot and letting

splash oil out? If so, I'm back to my original question.

Thanks for all the help on this.

John.



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Sean in PA

07-27-2011 04:03:53
71.224.102.32



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 Re: 3000 power steering valve in reply to flyingace, 07-26-2011 18:08:33  
Here's the proper parts diagram for a 3000 power steering assembly:



There are 2 parts from this diagram that are listed as springs:

Part number 20, which is listed as "Spring, Control Valve Bearing, Pre-Load, Start Year: 01/01/1965", and the part number is 310867.

Part number 24 is listed as "Spring, Hydraulic Control Valve Plunger, Start Year: 01/01/1965", and is part number 310960, with quantity 4 being required.
This post was edited by Sean in PA at 04:10:04 07/27/11.

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WayneIA

07-27-2011 02:17:15
216.248.101.110



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 Re: 3000 power steering valve in reply to flyingace, 07-26-2011 18:08:33  
Item is a vent plug for a 4 cylinder ford tractors. Which means the lower seal is leaking PS fluid into the gearbox. But I'm not sure the picture ULtra has shown is right for a 3000 tractor .And I'm not computer savy enough to get you to the 3000 cylinder parts picture. Go to Messicks web page , there you should be able to find a 3000 steering gear box.



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Ultradog MN

07-27-2011 04:07:58
70.56.164.147



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 Re: 3000 power steering valve in reply to WayneIA, 07-27-2011 02:17:15  
Oops! Wayne you are correct. I posted the wrong picture.
I also think you are correct in IDing it as just a vent for the lower part of the box.
Flyingace, what kind of oil is coming out? Heavy 90wt or lighter PS fluid?

Here is the right photo



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flyingace

07-27-2011 09:45:57
69.60.190.16



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 Re: 3000 power steering valve in reply to Ultradog MN, 07-27-2011 04:07:58  
I thought something didn't look quite right about that first diagram, but they

were pretty close. Anyway, the part on the 3000 diagram is #18. I looked at the listing for #18 and it's:

Valve Assy., Housing Vent, Service W/ Part # 572820(80572820)

I don't know, maybe it's supposed to leak some? I assumed it was a spring loaded venting valve with a spring worn. BTW, it is PS fluid.
This post was edited by flyingace at 10:22:51 07/27/11.

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Ultradog MN

07-26-2011 18:51:54
70.56.164.147



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 Re: 3000 power steering valve in reply to flyingace, 07-26-2011 18:08:33  
Not sure what you are referring to.
Can you give us a part # off the diagram?



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flyingace

07-26-2011 20:12:58
69.60.190.16



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 Re: 3000 power steering valve in reply to Ultradog MN, 07-26-2011 18:51:54  
I believe it would be part #30.



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