Thread: Oil leaks- 300tdi

Gearbox? If a manual then I could not be sure, no experience with this model. Could be blow over from transfer case issue. Worn seals between cases allowing gearbox oil to be pushed into transfer case, then over flow through breather?

Transfer case? Centre shaft has worn its seal and/or created an oval hole in casing.

Rear main? Main seal and/or t-seal.

Dripping off front diff onto ground, maybe from oil filter? Vacuum pump and/or engine oil cooler lines, other lines dealing with engine oil such as bypass recirculation, hardened seal under oil filler cap. Fuel lift pump or injector pump leak, mixing diesel with engine oil leaks.

Leaking around wheel. Line of grease on swivel indicates moly grease filled constant velocity chamber, axle oil seal close to chamber worn, letting diff oil in, which then might leak through lower pinion.

I have just eliminated similar looking leaks on my 96 Disco 300tdi manual. Firstly clean around the gear box/TC, rear of the motor and head, lift pump, vacuum pump and steering box. Most of my leak was coming from a leaking tappet cover (note - the secret here is not to over tighten the cover). Then monitor where it is leaking. I also eliminated a leaks around the vacuum pump. Vacuum and lift pump are notorious for leaking. I currently have no leaks

Tom.

Originally Posted by BathurstTom

..... I currently have no leaks

Tom.

A fortunate situation - it leaves one wondering when the next one is going to start

As some guru once said " you can't keep the water out of 'em, and you can't keep the oil in 'em"

If it's not leaking, it might be empty!

Seriously most leaks look far worse than they are. They also migrate along way.
It's hard to see from your photos how much is leaking. Wipe all clean so you can monitor. If one really starts dripping get it fixed.