compression test advice

[Deefadog]

Thanks guyz.

golfvr6 - Breather hose's are all clean, was not alot in them, just a coating, the mesh was quite clean also! (should I completely remove this mesh?)

Just to check, Is there only the one breather hose right? I also cleaned the other hose which goes across the top of the engine into the airbox, that was very clean also!

MK1 -  the valve stem seals, is there a way to check these? or is it a big job to replace them?

I did notice that on the new spark plugs (1 week old) that the second one from the left and the 4th one from the left had a black deposit just around the rim where the prongs come from, is this any help?

[16v Matt]

Mine does exactly the same mate, will be following this with interest

[richandhazel]

Sounds like valve guide oil seals to me.....Hazels Audi 1.8S is doing exactly the same and the compressions are about the same too.

I have a compressor so I have just bought one of these:-

http://www.machinemart.co.uk/product.asp?p=040211463&r=2205&g=107

and one of these:-

http://www.machinemart.co.uk/product.asp?p=040211452&r=2205&g=107


In the hope that I can do the valve guide seals without removing the head. I thought the air adapter would also double quite well as a leak down tester

[Deefadog]

Not to sure I am confident enough to do that on my own

If a garage was to do it for me how much would I be looking at?

[16v Matt]

I was quoted about ?200 ish. Half a days labour i'm told?

[Deefadog]

Not too bad I guess, are you going to have it done matt?

[frankerooney]

Is the black deposit powdery or oily? And is your smoke blue or black. Could it be dodgy injectors if the smoke is dark and doesn't smell or oil and the plugs are powdery??

[Deefadog]

The black deposits on the two plugs are powdery!

But I think it is burning oil

[16v Matt]

Hi, think i'm gonna get it done as it is slowly getting worse :'(    Just out of interest does yours smoke when the engine is cold, i.e first thing in the morning?

[Deefadog]

No mate, I do get A little white smoke, but that's just condensation like in any car!

I GET THE SMOKE ONLY WHEN THE ENGINE IS AT RUNNING TEMP AND IS LEFT IDLING (sorry about the caps, slipped and could be bother to re type it)