[s-cars] S4cylinder replacement

[AUDIJIM at aol.com]

Yesterday I installed the rebuilt AAN mated to a 6 speed trans w/  
Centerforce clutch into my 1993 S4. The engine is RS2 with the exception of the  intake 
manifold. Pauter Machine connecting rods and OE pistons and rings.  Pistons 
were balanced to 344 grams (the weight of the lightest piston) to the  nearest 
ten thousandths of a gram. Hardened upper and lower connecting rod  bearings 
were used and OE crank bearings. ARP main bearing caps studs and head  studs. 
New RS2 exhaust cam, exhaust manifold and turbo. I went as far to make it  full 
RS2 by installing the RS2 cam gear, water pump and timing belt. I have a  
spare ECU with Uncle Bob Pastore's latest software w/ VMAP. 
 
This engine is supposed to take care of my missing #4 cylinder, that was  
trouble shot to the point of being a mechanical problem. I'm looking forward to  
the disassembly of the Lehmann engine to see what went wrong in there. The way 
 it acted, I'm thinking that have a bad compression ring or rings on all the  
cylinders, but especially on #4. It would start on all 5 cylinders for about 
a  second or two. I think it had good compression because of oil sealing  the 
compression rings after is was sitting for a while. After it starts running  a 
couple more seconds, it would drop #4 cylinder, again I believe due to the  
loss of the oil to seal the bad rings.
 
I have too many things to do today, but I need to hook everything up and  
give it a start. I should be able to finish it within the next couple of  days.
 
Wish me luck! If this doesn't fix it, I'm going to drive it into a river.  
I'll make sure I'm still in the car!
 
 
Jim
//S4cylinder......no more?