What does a rear axle vent tube do?
What does a rear axle vent tube do?
the axle breather tubes are there to aloow for pressure changes in the axle when you go down the road the gears heat the oil causing it to expand when they cool off the oil contracts (makes sense right ?)
What is a differential vent hose?
The purpose of the vent hose is to keep the vent opening further away from the axle tube where there is dirt and moisture (water) that might enter the axle and differential. Axle vents allow pressure inside the differential to equalize with the atmospheric pressure.
Why do differentials have vents?
The need for venting comes from the fact that the gear oil and air in the differential heats up and expands. It also contracts when it cools, which is why I think a check valve is a bad idea. The seals could be leaking because the vacuum in the diff is pulling in grime from outside and wearing them out.
What is axle breather?
A differential / axle breather serves the important purpose on a 4WD vehicle of venting the air pressure in your drivetrain assemblies such as differentials, gearbox and transfer case. This vacuum will close the one-way valve tightly shut causing air to be instantly drawn into the assembly through the axle/shaft seals.
How do you drain and refill a differential?
- Step 1: Secure the vehicle on jack stands or ramps.
- Step 2: Allow time for the gear oil to completely drain.
- Step 3: Locate and remove the gear oil fill bolt.
- Step 4: Use a pump to slowly add the recommended type of gear oil to the differential.
How does a differential breather work?
As the air in your diff housings heats up, it expands, and pressurises the diff. The breather lets it release this pressure out into the atmosphere, instead of out via your axle seals.
Do you need diff breathers?
Why are Diff Breathers important? Extended diff breathers are extremely important insurance for your 4WD if you drive through water. In essence, when you go through a puddle that is near or above diff height, you are dunking a hot differential into cold water.
What kind of fluid goes in a differential?
There are two types of differential fluid. One is mineral oil, which is a natural, crude oil-based fluid. The other is synthetic differential fluid, which is created in a lab. As with all synthetic oils, synthetic differential fluid oils can be fine-tuned for optimal performance.
