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Discussion Starter · #1 ·
Been Bushhogging for over a hr and while in motion fluid starts coming out of this black plug on top of tractor fill plug for gearbox???? Any ideas? Maybe too much fluid inside?
Hood Automotive tire Blue Motor vehicle Wood
 

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That is the vent for the rear end / hydraulic fluid reservoir. Looks like it was overfilled with hydraulic fluid. The fluid is probably expanding as the tractor heats up.
 

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Discussion Starter · #5 ·
Actually, that looks like the transmission vent. Water in the oil. Over full. No maintenance.
Just recently acquired this tractor, changed filter, hydraulic fluid oil, coolant the whole nine yards before Bushhogging. When you say “water in oil no Maintenence “ do you mean there’s water in the oil and there was no Maintenence to prevent it? Or it’s this venting fluid normal
 

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The hydraulic oil has a yellowish/brownish appearance (to me, it looks like water in the oil). What fluid did you use in the transmission? That black spot on the filler cap should be a vent. Maybe the remains of a vent? Possibly the previous owner owner has modified it??
 

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A common problem with Ford tractors is transmission fluid leakage out of the top of the transmission when the tractor is working hard and the fluid gets hot. Ford developed a filler cap with a vent on top to fix this problem. Part Numbers: Vent: 21T4022. Cap w/Tube: 82004404. See photos below. This does help, but I've found that fluid also leaks: 1) Out of the port where the safety switch wires pass through the transmission top cover, 2) Through the trans fluid level dipstick hole, 3) Through the trans cover gasket.

P/N 82004404
Automotive tire Camera accessory Cylinder Lens Gas


P/N 21T4022
Tape measure Rectangle Ruler Font Measuring instrument


This is a generic vent to better illustrate the vent:
Camera accessory Cylinder Rectangle Plumbing fitting Metal
 

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Discussion Starter · #9 · (Edited)
A common problem with Ford tractors is transmission fluid leakage out of the top of the transmission when the tractor is working hard and the fluid gets hot. Ford developed a filler cap with a vent on top to fix this problem. Part Numbers: Vent: 21T4022. Cap w/Tube: 82004404. See photos below. This does help, but I've found that fluid also leaks: 1) Out of the port where the safety switch wires pass through the transmission top cover, 2) Through the trans fluid level dipstick hole, 3) Through the trans cover gasket.

P/N 82004404
View attachment 80477

P/N 21T4022
View attachment 80478

This is a generic vent to better illustrate the vent:
View attachment 80480
So this I have circled just dissipates the fluid pressure by releasing fluid all over the gearshift cover ?
 

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The purpose of the vented filler cap is to release gases without oil. Your vent is FUBAR from the looks of it in your picture. Check the fluid level in your transmission with the fluid level check plug on the right hand side of the transmission. Also, what fluid did you put in the tranny?
 

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Discussion Starter · #11 ·
The purpose of the vented filler cap is to release gases without oil. Your vent is FUBAR from the looks of it in your picture. Check the fluid level in your transmission with the fluid level check plug on the right hand side of the transmission. Also, what fluid did you put in the tranny?
Travellers universal hydraulic/transmission fluid
 
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