Ford 1710 leaking coolant

[maxamillion125]

I have a 1710 Ford with only 550 hrs on it and I noticed green coolant leaking out at a pretty good rate today. I ran it for about 3 hrs and hopefully caught the leak in time before it caused any other damage. Engine temp was normal. Anyway can you guys tell me what parts I need to replace? Is it just a seal? Thanks

 

[jones6780]

Can't tell from the photo.

 

[maxamillion125]

Can't tell from the photo.

In the first pic the fluid was coming out of the connection below the silver thing and what ever it connects to.

 

[JC-jetro]

The banjo connection is on the discharge of the hyd pump. The leak can not have generated from there unless it is hyd fluid. You have to go look from above. I'd fill the radiator up with just water, bring the engine to temp and try to duplicate the leakage while looking for the source. Have you looked at the water pump, input shaft to the pump and hoses to the radiator ? any mixing of engine oil and coolant that you can observe? any seepage where the head is attached to the block?

JC,

 

[maxamillion125]

So after some research I think the problem might be fixed by replacing seal #5 and #6 in the priority flow valve.

 

[JC-jetro]

what you are referring to is for Hyd/power steering system. It has no relationship with coolant? do you have a leak in cooling system?

JC.

 

[maxamillion125]

I cleaned up the area and took some more before and after pics. Do you guys still think its the o-rings? Its power steering fluid correct? and how hard is it to replace those parts or should I just take it to a shop? Its only leaking from that one spot
Thanks


Before




After

 

[TractorTech]

Definitely orings and possibly bad tube going into housing.
Not hard to fix if you're handy.
After you repair, you might want to look at changing the hydraulic oil based on the look of it in your picture and the fact you thought it was coolant.

 

[maxamillion125]

Definitely orings and possibly bad tube going into housing.
Not hard to fix if you're handy.
After you repair, you might want to look at changing the hydraulic oil based on the look of it in your picture and the fact you thought it was coolant.

The only reason I though it was coolant is because at first it looked somewhat green but if that is in fact the only place its leaking then there's no way its coolant right? Thanks for your help.

I have a video if anyone cares to see.

 

[TractorTech]

It is not coolant. The priority valve prioritizes hydraulic oil between power steering and rest of hydraulic system.
Just as JC-Jetro said.

 

[JC-jetro]

yep it is verified. it ain't coolant. It should not be difficult to repair. try to source parts from NH dealer before you completely disassemble. I have bought a set of metric o-ring from HF and they come handy and you can find something matching the oem o-ring. be careful not to mess up the o-rings as you'll have something to compare with.

JC,

 

[maxamillion125]

I ended up driving it to the hydraulic shop up the road from my house and they replaced (5) O-rings and now its good to go. Cost me $120. Thanks everyone.

 

[JC-jetro]

That's a fair price. Probably you could have done just the same buying the o-ring and attempting the repair.

JC,

I ended up driving it to the hydraulic shop up the road from my house and they replaced (5) O-rings and now its good to go. Cost me $120. Thanks everyone.

 

[maxamillion125]

Well guys the leak returned a few weeks ago. Should I even bother replacing the o-rings again or do I need a whole new priority flow valve unit?

 

[maxamillion125]

4 of the frame bolts that go into the engine were loose. After tightening them down the leak slowed way down. It still leaks but very very little, a drop every few minutes. I think if I replace the o-rings again and with the bolts tight I should be ok? Thoughts?

 

[JC-jetro]

4 of the frame bolts that go into the engine were loose. After tightening them down the leak slowed way down. It still leaks but very very little, a drop every few minutes. I think if I replace the o-rings again and with the bolts tight I should be ok? Thoughts?

I concur. I perhaps put a bit (very little) of RTV blue in the mating faces , let it skin for a few minutes and put them on. I tighten it uniformly but would nut over tighten.

JC,