Thread: Tdv6 engine oil on bellhousing

When removing oil filter undo a few turns and wait for the captured oil to drain into sump on the 2.7. Not sure if 3.0 has same feature. A heap will come out if draining by sump. You can do it leak free.[/QUOTE] I have never been able to do it leak free for some reason, it does not seem to drain completely no matter how long it is left to drain after the requisite number of turns.

Originally Posted by Pippin

When removing oil filter undo a few turns and wait for the captured oil to drain into sump on the 2.7. Not sure if 3.0 has same feature. A heap will come out if draining by sump. You can do it leak free.

I have never been able to do it leak free for some reason, it does not seem to drain completely no matter how long it is left to drain after the requisite number of turns.[/QUOTE]
I normally change the diff oil every oil change so I leave it to drain whilst I do them and then do the filter and engine oil.
I did use a different brand filter this time so I might just do a few checks to see if I can identify it.
I am going to order a oil cooler anyway as it sounds like I'm on borrowed time so may as well get it here for when it happens.

Cheers Bulletman

Originally Posted by Bulletman

I have never been able to do it leak free for some reason, it does not seem to drain completely no matter how long it is left to drain after the requisite number of turns.

I normally change the diff oil every oil change so I leave it to drain whilst I do them and then do the filter and engine oil.
I did use a different brand filter this time so I might just do a few checks to see if I can identify it.
I am going to order a oil cooler anyway as it sounds like I'm on borrowed time so may as well get it here for when it happens.

Cheers Bulletman[/QUOTE]

The extra deluge out the sump is very noticeable and if you imagine the entrapped oil in the vacant space of the filter cover can’t be much. There’s almost no way to lift it off to one side so carefully raising it should keep drips in line. Only a real splurge can overflow the housing but I’m sure it happens regularly in service shops.

If you were brave you could shoot some air down that drain hole to verify it’s draining or carefully pour in oil with filter out and watch it disappear.

Originally Posted by Bulletman

Gday All,
I'm thinking my D3 wants to go back to the tropics.. today I noticed a bit of oil under the car, getting underneath I clearly have engine oil down both sides of the bellhousing. Checking the oil level it's still full.
So reading suggests possibly the oil filter housing oring leaking. I'm pretty confident it's not this as I've just done 5500km in 5 weeks since changing the oil and filter and I havent used any so my thoughts are it would have lost some in that time/km .
Also see its possible oil cooler, this is possible I guess, cant see a valley full of oil not any in the header tank.
I can see oil which looks to be leaking from the rocker cover front passenger side into the valley area but it's not a flowing leak. I can also see oil at the back of the drivers side , but the rear of the head looks clean.
Obviously it needs a good degrease and clean but wondering if others have had this and what the culprit was.
Cheers Bulletman

Need a new oil cooler. Sits deep in the V . Light weight piece of sardine tins.

Ok so I can definitely say it's not the oil cooler leaking, the valley has no oil to speak of in it. Its obviously not perfectly clean but there is no pool of oil sitting in it.
I'm thinking its leaking drivers side on something that sits behind the head. Will try and get a photo .

Cheers Bulletman

I believe that’s where the vacuum pump lives and as has been said, the seal on those are
prone to leaking, so it could be that.

Originally Posted by DiscoJeffster

I believe that’s where the vacuum pump lives and as has been said, the seal on those are
prone to leaking, so it could be that.

Body off job ??
Cheers Bulletman

Originally Posted by Bulletman

Body off job ??
Cheers Bulletman

Can be done in a similar vein to the fuel pump belt removing all things in the way coolant cross over, heater pipes and some injector pipes, but easier on RHD cars without engine harness to remove. Two mounting bolts access from top and two bolts from below reaching up.

You can replace seal but given brake booster oil contamination replace whole unit if going to trouble.

There’s a DIY write up on Disco3.uk

When I recently replaced my brake booster servo there’s an incredible view of the side of the engine and EGR with the plastic covers completely removed that cover the booster. It was obvious to me my vac pump was weeping as heaps of grime and you can see the top of the exhaust cross over where it leaks onto then down to the fuel cooler but nothing bad compared to previous oil cooler leak.