Audi 80 Avant

[Takumi]

did you lubricate cam seal inner side when putting it on a cam? If it's dry, could be damage when pushed.

[A80Avant]

I don't remember. Maybe Brian can answer that.

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[Tonks4x4]

Yes there was a smear of grease to slip it on. And there was a small wear mark in the end of the cam but it was not stepped enough to feel it.

[Pirvu Eugen]

I have a question in regards to my camshaft seal leak.

As we replaced it and used some silicone in the outer section of it, but i still have what seems like a leak from that location, i was wondering if:

1) Could it be that the cam cover is getting pressurised for some reason and hence the amount of oil going through the little hole is higher, esp. now that with the silicone sealant around the rubber gasket, its all dry from all directions? (funnily enough, after wipping it and going for a boost run, it was dry, then as i drove it today without boost, it came back (the oil residue), so ill be checking the check valve tomorrow hopefully. I have a replacement as well.(although my tanks now should always be through to the turbo vaccum side anyway)

2) If the above is wrong, could it be that the camshaft has a deepened ring that is worn at the point that the gaskets sits, and everytime the gasket is situated were it should, it just keeps leaking from the inner ring rather than the outer that we sealed with silicone?

Behind the oil seal is a small hole to let the oil go back on the head...either the hole is blocked or the camshaft cap wich keeps the oil seal in place dosint had a small amount of silicone before fitting...small amount off oil can pass throw there also..
Hope this helps!
Regards!
BTW...with engine running...open the filler cap...iff there is pressure you will see...but i doubt.

[A80Avant]

Hi

i thought that the hole was there for the oil to pass through and lubricate the seal.
we used silicone on the second fitting of the camshaft seal, which makes me puzzled why the whole thing still leaks!!

By the way Pirvu, i wanted to let you know that the power steering pump is now changed to a single vane as the previous one with the modification was leaking unfortunately. I have found a second pump which ill send for inspection and keep as a spare as the one we have put in now may also be problematic, making noises now, but not definite.

I doubt that my camcover is pressurising, as a little spread of silicone wouldnt be enough to keep it from leaking. All PCV and tank hoses are large and free and should be fine.

[A80Avant]

while trying to sort out the PCV hoses, i also managed to completly detach the little metal rod of my cruise control. It had been bented so many times that eventually it broke off... Now i need to get it somewhere for a quick weld.

[A80Avant]

How much coolant would i expect to lose if i take the water return pipe off the turbo, at the side of the block to change the end bit ?

[Avantus]

A lot

Everything above that point, which includes full content of the reservoir.

[A80Avant]

are you sure? is that much amount of coolant there?

is that coming off the block or off the turbo?

[Avantus]

I unbolted it when taking my turbo off a good month ago, and I had a bucket full of coolant under my car.

Most of it comes from the block I presume, but also out of the turbo I think...
The reservoir is the highest point.

[A80Avant]

S&£*"(t!

well that is not good then... not an easy job to do at the open roof parking space i have here...

Ill see if i can add a second clamp on the existing hose and replace it next time i go to Brians...

[Avantus]

I also had it leaking slightly at the block after putting it back on with the new turbo, and firing it up for the first time. Turned out to be the clamp that needed a few more (difficult to reach) turns to be tight. Been dry ever since.

[A80Avant]

i have tightened the clamp already undortunately, but still ever so slightly seems to weep. i think the rubber hose is of poor quality and i have a samco i want to put there.

[Avantus]

indeed, it's rubber on the outside with a blue plastic tube inside of it... probably cracked that one.

[A80Avant]

no, mine is a rubber hose made by 034 when i had the lines done for my garrett. BUT still a cheap quality one. I would have thought after all the money the lines cost, how much of a problem would it have been to fit a damn samco piece of 10cm? its rediculus...