The Devil

here's the story.. I got the coupe back from the body shop and started going through it.. well the oil. is all milky ah.. crappola. I am 99% percent sure it wasn't before it went into the body shop but it doesn't matter even if it is the case its behind me and I just want to get the engine running properly again

Well me and Nick Kugler started pulling the engine apart. So far so good

I need to know the Headbolt tool size
Triple square? size 12? or 13?

Also the studs for the exhaust manifold are preity bad seemingly we will have to break them off options?


Oh yah options to buy replacement parts:
Thinking as of right now

Front radiator supports
water pump possibly
oem head gasket :thinking of shaving the head for 11:1 compression
what about racewear headbolts size etc..
Timing belt preity new but just to be on the safe side will be replacing
Most likely installing an adjustable cam gear

Reliable places? online vs dealer


BTw I feel like liz now wish I read all her posts
however coupe is a 5 cylinder

squidix9

For the cruddy studs, use heat. Get them red hot, and pray. Try to keep the heat away from the head, don't want to wreck the aluminum.

I always use OEM gaskets, AudiSport used them, nothing fancy, I trust them.

Front radiator supports, I might have some, I'd have to look, with the parts car having front end damage, they may be toast.

You probably won't be able to get 11:1 by shaving the head, do the math. Uncompressed volume:compressed volume. With 10.3:1 your compressed volume is around 44.66cc, with 11:1 it would be around 41.82cc a difference of about 2.8cc. With a bore of 82.5mm, you would need to shave off in the vicinity of 2.2mm to change that much, without doing something else like changing the stroke.

Merkin

so its their fault?

The Devil

was wondering if you know much about the eurovan 2.5L engine?

There is one I believe at force5 and I am would like to consider the options.

THanks for the headshaving information some day I will understand all this engine stuff..live and learn hehe

The Devil

honestly I have so much on my mind lately that I don't want to point the finger

squidix9

Can't help you on the Eurovan 2.5L. My engine is 2.5L, but started life as a 2.3L, but now has a stroke of 92.8mm, and some pretty radical piston's too, leaving me with a 14:1 compression.

I've been building race engines for around 20 years, but am actually new to Audi's. If you look at any of my posts, I generally stick to generic motor topics, I have yet to fully grasp the Audi engines. This said, all reciprocating engines follow the same rules, compression is compression, and so on. I also built rotary engines for awhile too.

I bought my Quattro out of respect for the Group B cars of the mid 80's. I was racing back then, and we were doing or best to keep up with them. We had cars that were lighter and faster than them, but with 4wd, we just couldn't compete. We built some awesome 13B motors, that would absolutely scream, and Rod Millen chipped in some 4wd technology to help, but the Audi's just couldn't be touched. Now that I am driving one, I can see why.

Merkin

else is needed to strok the 2.3 to 2.5.
such as the eurovan crank, and etc....

squidix9

AudiSport crank, I guess that would be a yes

MikTip

Re: You'll need 83mm pistons to get 11:1.;o) Had'm in my Coupe!

MikTip

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