Thread: 300Tdi Head Gasket Oil Leak

A photo may be helpful, also how many kms ?

RHS - do you mean RHS looking at the motor, or driver's side?

If it is the driver's side, could it be from the Hummel Valve O Ring ?

Or is it definitely lower, as you say from the head gasket area?

Only touch the head bolts if you are was replacing the head gasket.

Sure it is not coming from the Rocker cover gaskets as these leak all the time.
That is directly about the head gasket.

If it was leaking from the head gasket you would have a lot more problems than just a bit of leaking oil.

Thanks for the ideas.
Leak is on right side of motor...drivers side. Total km's 150,000
As I said in the post tappet cover is renewed and oil tight.
Hummel valve replaced with a Provent and pipe work and O ring joint is oil tight.
I have cleaned down the right side twice now and done a 50 km run and the oil appears at the head gasket joint, the head itself is dry.

Picture would be good,
So is it coming from the peak or the valley of the casting?
The push rod galleries are on that side of the engine?
Where in relation to the 2 and 3 injector / heater plug is the leak?

S

Thanks for the reply roverrescue
Been a bit on the busy side so haven't got the photo yet.
The leak appears to be at the line of the head gasket.
The head casting is none oily. The oil is only below the head gasket then of course going down the block.

Are you sure it is not the P Gasket. They are known for going on the 300 TDI. I know it is water but after it goes across an engine it ends up a bit oily.

They are on the right side and about the right height.

Arrow points to the position of the oil leak.
The glossy surface on the block is the oil seeping down the block.
130camper

Well 130camper
If the oil is indeed coming from that location it is coming from the pushrod/rocker/roller gallery and can only exit there via the head gasket.

I wonder though, you say the picture shows a glossy oil slick - unless your engine oil is not black (unlikely) could the oil actually be dieso coming from the spill rail between 2&3 and dripping to your pointed location?

Dieso feels and looks oily but is obviously clear. Engine oil leaking from that location should really be black on a 300tdi.

If it is indeed coming from the pushrod gallery via the head gasket I would first be trying some good quality sealant externally after obviously cleaning the area well. There is no actual oil pressure in the pushrod galleries and you are only containing blow by pressure. I certainly wouldnt be cracking the HG to fix that sorta leak on any landy that graced my driveway!

If it is dieso from the spill rail then just buy enough fuel spill line from your friendly dieso specialist and replace all the spill lines.

Steve