Ford 8N dribbling coolant out of radiator overflow, not overfilled.

[ultrarunner]

I’ve added to some of my older rolling stock with good results…

 

[BossofBBQ]

I think I’ll stick with the 180* one then. This is very much a “weekend warrior” tractor, not an everyday working machine. I have a new radiator cap on order- I’m in the process of restoring this tractor and wanted a replacement cap with the hood ornament… Will update you guys when it arrives.

In the meantime, what are these little ports on both the intake piping and valve inspection port? I’ve attached a picture below. Looks like they had a line attaching them at one point. I’ve since plugged both the ports to prevent contaminants from getting in. It certainly isn’t factory, and I couldn’t find any reference to it in the FO4 manual either.
Thanks again for all the help guys. It’s my first 8N, always wanted one and now I’ve got it!

 

[repete]

You fill it and it bleeds out. Run it for a few days and see if the dribbling stops and the radiator finds it "happy" level. Any cooling system will expand and contract, you do not regularly see it on the ground because often it goes into a recovery tank.
You could add a tank but it would likely require a different type of cap allowing the system to "recover" coolant from the tank when the engine cools down.
If it were mine I would fill it, watch the temp gauge and if it never overheats after a few days of work let it cool and check the coolant level. Consider that level as your coolant level when cold.
Additionally, running the proper coolant mixture and having the correct pressure cap will raise the boiling temperature of the coolant. Each 1 PSI will raise the boiling temperature about 2 degrees. If you just drive around a lot and never push it hard to work, it will have little consequence. What you want to minimize is having coolant vaporize (boil) upon contact with the cylinder head combustion chamber potentially causing a crack in the head.

 

[EdGooding]

I think I’ll stick with the 180* one then. This is very much a “weekend warrior” tractor, not an everyday working machine. I have a new radiator cap on order- I’m in the process of restoring this tractor and wanted a replacement cap with the hood ornament… Will update you guys when it arrives.

In the meantime, what are these little ports on both the intake piping and valve inspection port? I’ve attached a picture below. Looks like they had a line attaching them at one point. I’ve since plugged both the ports to prevent contaminants from getting in. It certainly isn’t factory, and I couldn’t find any reference to it in the FO4 manual either.
Thanks again for all the help guys. It’s my first 8N, always wanted one and now I’ve got it!

No clue on those two ports. Some N tractor intakes came with a vacuum port that was used for engine diagnosis in the shop and to run milking machines on the farm:

 

[BossofBBQ]

That's a neat system, very clever idea to use the engine to supply vacuum. I don't think that's quite what I have though. We'll just say it's a "unique" modification, and leave it at that... It's all put back the way it came from the factory, at any rate.

 

[John0829]

Those added ports are some sort of farmer-i-zation for only they know what. Plug em' off and carry on.

 

[ultrarunner]

No clue on those two ports. Some N tractor intakes came with a vacuum port that was used for engine diagnosis in the shop and to run milking machines on the farm:
View attachment 4036472
View attachment 4036473

Also can be used for a wolf whistle… Fords have vacuum taps going back to the 1920’s and many automotive applications used for vacuum wipers.

 

[34Willys]

Haha!
High school days, my cousin had a wolf whistle on his '68 Ford pickup truck.

Patrick

 

[ultrarunner]

I have one on the 1930 Ford pickup and it works great.

It would work on my Ford Jubilee for parades.

 

[BossofBBQ]

haha, that's funny, gave me a good chuckle. How loud are they? I assume noise level differs with engine RPM- higher RPM=more vacuum, meaning more noise.