Thread: 300 Tdi Oil leak near oil cooler lines or below and left of fuel lift pump

can't remember the size off hand, but make sure you get them in Viton (flurocarbon elastomer), not standard Nitrile/Buna-N.
It has a higher temp rating.

Originally Posted by rick130

can't remember the size off hand, but make sure you get them in Viton (flurocarbon elastomer), not standard Nitrile/Buna-N.
It has a higher temp rating.

Thanks for that. I nearly used normal rubber o'rings, only didn't because they wouldn't fit, which was why the search for the old ones ensued.

But where to buy? Anyone know the actual size? Or part number?

For anyone that wants to know the part number for oil cooler line o'rings it is.

ESR1594L

Vac Pump leaks, Oil Switch leaks and the Oil line fittings leak...

Those are the probs i has

Vac Pump, Pull it out and fix it...
Oil Switch... Replace...
Oil line... remove, clean, refit...

Try putting a spanner on the fittings on the side of the engine, they have come loose on mine once on the climb out of Tobacco flat towards Fry's.

Lost about 5 ltrs of oil in 20 seconds when the line came off but it could just be a little bit loose.

Originally Posted by mcrover

Try putting a spanner on the fittings on the side of the engine, they have come loose on mine once on the climb out of Tobacco flat towards Fry's.

Lost about 5 ltrs of oil in 20 seconds when the line came off but it could just be a little bit loose.

NASTY.... thats a recipe for a Dead engine.....

Originally Posted by sclarke

NASTY.... thats a recipe for a Dead engine.....

The worst thing is that when I stopped, my Toyota driving mate jumped out with the video camera saying the all reliable Disco finally broke down.

Alls good though, the oil light only flickered once before I smelt the oil on the exaust.

Well I just got back for Tootgarook Forest (I think that's how its spelt) anyway is 18km out from Yea Victoria.

The car was fantastic. It just keeps impressing me it how it handles what's thrown at it.

Was nearly shown up in a bog hole but I don't have mud tyres or 33". It took 5 goes but I didn't what to flog it.

Anyway back to topic, what I did find on this trips was that a new leak developed on the lower oil cooler line near the radiator. I am confident that it is because I re-used the o'rings, they looked a little squashed, as you would expect as they form the shape of the fitting. I didn't have time to get them before this trip so will now.

At least the leak is not coming from the pressure fitting. The Pirtek product looks very good and should not leak ever.

I have cleaned around the vacuum pump and the switch just to see if any leaks are there.

Thanks Clarky for the tips. I would not have thought of looking at the oil pressure switch.