Thread: Pipe on the top of the front axel?

Diff breather?

Originally Posted by Robgw

Whats the black pipe for going into the top of the axel?

I noticed a spot of oil on the garage floor the other day after quite a long drive on a bumpy road. And overnight a strong oily smell. My landy never leaks!

I crawled under to see some diff oil had run from a plug on top and dripped on the floor. Very smelly oil!. There was a black pipe which had appeared to pop out the hole hence the drips. I pushed it back in and all good.

Yep.

Good time to extend them while you are down there?

Originally Posted by SiddersC

Good time to extend them while you are down there?

Yes not a bad idea. Clearly some travel on that road popped it out. Plus the fluids are due for a change.

Im pleased LR fitted them standard!

Can't beat the smell of diff oil all over the garage floor

Originally Posted by SiddersC

Can't beat the smell of diff oil all over the garage floor

Never smelt it before, there was only about 3 drops!. I checked what it was by scooping it up on my finger tip! Lord knows what they put in that stuff but it stinks!.

It's also not my garage! It's a holiday home we're staying at this week!

Originally Posted by Robgw

.... Lord knows what they put in that stuff but it stinks!.

Extreme Pressure lubricant additive - stuff that sticks to the gear teeth and prevents metal to metal contact even when the pressure is so high that the oil is squeezed out.

"
EP additives typically contain organic [ame="http://en.wikipedia.org/wiki/Sulfur"]Sulfur - Wikipedia, the free encyclopedia[/ame], [ame="http://en.wikipedia.org/wiki/Phosphorus"]Phosphorus - Wikipedia, the free encyclopedia[/ame] or [ame="http://en.wikipedia.org/wiki/Chlorine"]Chlorine - Wikipedia, the free encyclopedia[/ame] compounds, including [ame="http://en.wikipedia.org/wiki/Sulfur"]Sulfur - Wikipedia, the free encyclopedia[/ame]-[ame="http://en.wikipedia.org/wiki/Phosphorus"]Phosphorus - Wikipedia, the free encyclopedia[/ame] and sulfur-phosphorus-[ame="http://en.wikipedia.org/wiki/Boron"]Boron - Wikipedia, the free encyclopedia[/ame] compounds, which chemically react with the metal surface under high [ame="http://en.wikipedia.org/wiki/Pressure"]Pressure - Wikipedia, the free encyclopedia[/ame] conditions. Under such conditions, small irregularities on the sliding surfaces cause localized flashes of high [ame="http://en.wikipedia.org/wiki/Temperature"]Temperature - Wikipedia, the free encyclopedia[/ame] (300-1000 °C), without significant increase of the average surface temperature. The [ame="http://en.wikipedia.org/wiki/Chemical_reaction"]Chemical reaction - Wikipedia, the free encyclopedia[/ame] between the [ame]http://en.wikipedia.org/wiki/Gasoline_additive[/ame] and the surface is confined to this area.
The early EP additives were based on [ame="http://en.wikipedia.org/wiki/Lead"]Lead - Wikipedia, the free encyclopedia[/ame] salts of [ame="http://en.wikipedia.org/wiki/Fatty_acid"]Fatty acid - Wikipedia, the free encyclopedia[/ame] ("lead [ame="http://en.wikipedia.org/wiki/Soap"]Soap - Wikipedia, the free encyclopedia[/ame]"), "active sulfur" compounds (e.g. [ame="http://en.wikipedia.org/wiki/Thiol"]Thiol - Wikipedia, the free encyclopedia[/ame] and elementary sulfur), and chlorinated compounds. During the 1950s the use of lead soaps was eliminated and replaced by [ame="http://en.wikipedia.org/wiki/Zinc"]Zinc - Wikipedia, the free encyclopedia[/ame] and phosphorus compounds such as [ame="http://en.wikipedia.org/wiki/Zinc_dithiophosphate"]Zinc dithiophosphate - Wikipedia, the free encyclopedia[/ame]."

See - [ame="http://en.wikipedia.org/wiki/Extreme_pressure_additive"]Extreme pressure additive - Wikipedia, the free encyclopedia[/ame]

John