Project - Keep it on the road!

[bikerjim]

Hi everyone

I have been looking at this forum for quite some time now and really love the S cars. I own a 1994 2.0 16v coupe which i really enjoy driving.

The reason i have started this thread is for my dad. About a month ago my parents bought Aspro's (paul) 1995 S6. My dad has really enjoyed driving it and has got lots of enthusiasm for it. He has been in the motortrade all his working life as a mechanic and has owned a few audi's in his time.

Now, the car needs quite a bit of attention both mechanicly and cosmeticly.

First off the engine:-

Where do i start. Well we bought with 189,000 on the clock but the engine had been replaced recently with one from a car (S4 93/94) with 89,000 on it. Great we thought, no need to worry about that.

We drove the car back from manchester to north yorkshire with no troubles at all, took it down to the garage and did some work it needed for MOT. We put it through the MOT no worries.

Dad did all sorts of service checks on it too and noticed it didnt have any antifreeze in what so ever (little worrying with the cold weather we had this winter). We put new antifreeze in it and it was used to go to wakefield that weekend.

Unfortunately it seems with putting the antifreeze in it has found all the little problems. Antifreeze is very seaching and it dug out a headgasket problem. Oh ****, what have we bought, were amongst our first thoughts! So off with the head and this is what we found:-


Metal type gasket





Cylinder Head with these markings













Judging by the date markings on the head it looks like its a 1995 one, it looks like the engine that was swapped into this car must of had a different head or complete engine as i guess it should of had 93/94 markings.

Also something else that is very odd is it has been drilled:-





Does anyone know why this might be like this?


The block and pistons







Are these markings on the pistons normal or has this had a rebore?


Sorry that was a bit of a read There is much more to come on this but for now if any of you can shed any light on what we have here that would be much appreciated.

Dad sent the head round to have it pressure tested etc this eve so hopefully we'll know more on that soon, and hopefully we can get this awsome beast back on the road

Many thanks

Jim

[Sonic]

Looks like a bit of work there!

Good luck

[add]

looks like you've been buisy!
i think that the drilling in the head may be to accomodate the metal dowels in the block-i could be wrong though,if that's the case the head and block may be from different variants of engine-no doubt someone will correct me if i'm wrong

[twoqu]

That double drilling is a legacy of shared 7A/3B/ABY/AAN/ADU casting I think! Nothing to be concerned about. The engine number is clearly an AAN one. Cross reference the engine number on that head with your log book as I suspect that the original head has been reused. Would explain why it is later than the engine.
Standard bore is 81.01 so piston size at 80.98 is correct.

[bikerjim]

Thanks for the posative comments guys. As far as the engine No. on the head goes, it doesnt match with our log book but this engine hadnt been apart in quite a long time suggesting that it was the whole thing that was transplanted in.

Also the engine No. looks like it may have been altered, particulaly the 1 and 5 so my guess is the head was swapped onto this engine earlier in its life and in the other car.

Keep the comments comming

[bikerjim]

Ok so the head has pressure tested ok just need to get it skimmed now.

1. Whats peoples views on skimming?

2. Looks like it might need a fair bit taking off, obviously this is a lower compression engine being turbo so do we go for a thicker head gasket?

3. Also where is the best place to get gaskets from?

Thanks

Jim