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[sophos9]

Thanks mate - in my defence I just replaced it and did not use the guide (lesson learnt right!), the oil cooler plate was leaking coolant and upon undoing the banjo, the thread went in the cooler - so I just sorted it

Will do, got crows foot spanner set and have to do an oil change soon.

Will the unions near the oil filter just undo or are there any washers or anything that needs to be replaced?

Thanks for your help, much appreciated!

[Marks DTM Calib]

Thanks mate - in my defence I just replaced it and did not use the guide (lesson learnt right!), the oil cooler plate was leaking coolant and upon undoing the banjo, the thread went in the cooler - so I just sorted it

Will do, got crows foot spanner set and have to do an oil change soon.

Will the unions near the oil filter just undo or are there any washers or anything that needs to be replaced?

Thanks for your help, much appreciated!

They just undo....often pretty tight....

[sophos9]

Excellent - will check on the weekend and post back the results

Thanks again for your help!

[sophos9]

Got under the car and had a look around (should have taken some photos)... The pipe to the left of the filter is clean, no problems but the pipe to the right is covered in oil. The strange this is that there is oil coming from much higher (on the pipe and on the block)

I used a crowsfoot spanner however could not move it (is the bolt head normally shaped?) even made a tool but would not move.

2 questions...
There is no leak from the gasket, replaced not long ago and checked - the only other alternatives are head gasket or oil filler neck. You have previously said its 'impossible' for HG to leak there... Any ideas or do you think its oil 'travelling'

Could I cut through the oil pipe and use a standard socket to remove union (to replace with one from a scrapper)?

Thanks

[duggs]

Can't thank you enough for this post....EXACTLY the same symptons as I've had for a while now...couldn't for the life of me see what was at fault until I read your post.

Problem appeared for me directly after an oil change. Perhaps the garage "knocked" the pipes slightly but I've always thought that oil was squirting under pressure from somewhere down there because the oil almost appears like a thin mist over everything...NOT a constant defineable leak.

Spoke to the main stealers and they said the pipes can't be touched without the oil cooler being changed....NOT what the replies above would suggest. ?

[sophos9]

duggs, glad this thread has offered some value. The oil cooler pipes are only messed up when you change the oil cooler and like me, dont undo the unions just bend the pipe. I dont think that this goes to say the unions will never leak though...

Have you checked the oil filler neck? This has an oring seal on it and can leak although I think you would see witness signs of burnt oil on the exhaust manifold

Hopefully Mark can help with the questions - then we can thank him together

[Marks DTM Calib]

Some times the cooler pipes take some shifting.....I have on occasion had to use a 600mm bar.

You do indeed get a very fine mist from the union as the oil is at full pump ressure at this point.

As for the mist following an oil change, has the hand fisted mechanic over tightened and cracked the oil filter case (which is also at full pump pressure!)

Oil leaking from the headgasket......for this to happen you would be suffering major compression losses and coolant leaks first!

[sophos9]

Oil leaking from the headgasket......for this to happen you would be suffering major compression losses and coolant leaks first!

Am suffering coolant leaks however I can see evidence of a leak from the radiator. I topped the oil up today and the filler cap and neck was totally crammed full of mayo, loads of it - did not notice any on the dipstick length tho?

The car does not suffer with any lack of performance...

How did you get a 600mm bar in there, I cannot get enough room anywhere - is that an engine mount or something that gets in the way and can I remove it?

Thanks mate

[Marks DTM Calib]

For further info, here is a pic of a head with the various channles coloured so you cna see what they do:



Red=Main high pressure oil feed (note, this is on the inlet side so in the V!)
Brown=Oil return (note, lower than atmosperic pressure due to the rbeatehr setup)
Blue=Water

[sophos9]

Thanks as always - based on that picture - I can only agree with you that the HG is def not plausible

The suspects are union and oil filler neck, as you have said - money is on union.

Basically, I'm buying another car for a while and will have the Omega in pieces sorting all the faults so will replace the dodgy pipe/union during that.

New car is a Alfa Romeo GTV for the summer..