Good idea but it will be harder to find precision ground shims the exact same shape as the liner resting ledge. Its hard enough to fine precision ground shims for installing transmission parts.

 

How could a company get away with selling a less then perfect product? Is there a fix, maybe but should you have to? NO! If you Paid with a Card, call them and start there buddy. That's why I try to buy as close as possible, because if something like that would happen to me I would definitely make the trip.

 

Contact Autofarm Porsche Specialists in the UK. They offer sleeve and install services on Porsche. They were one of the first service shops in the world to offer motor building options, sleeving and such of the early 996 motors. They, I'm sure could advise you, if you have junk or if the sleeves you have are usable. I have received new sleeves before that have had rust inside and out. The outside was was the biggest deal as it changed the OD and would make for a tighter interference on the press. A glass beading or scotchbright scrub was usually all that was needed. It ID would get bored so it was of little concern. These look prebored and fit so things are a bit different.

 

Precision shim stock was quite common when I was a machinist. Granted this was more years back than I care to remember but the need for shim stock never goes away...

Shimming isn't needed if the cylinders have not yet been bored for the sleeves. The sleeves would be chucked up and a skim cut taken to remove the damage and keep the finish. (Years ago when I was machining up some large pipe flanges -- by large I mean the pipe diameters were several feet in diameter and the flanges were inches thick - the pipe was for some kind of wind tunnel that was going to be used to test instruments under the conditions expected on Venus or Mercury (this was for NASA/AMES) -- the finish callout on the flange face was critical as it was to ensure the gasket between two mating flanges would not fail under the extreme pressure (we tested the unit to 900PSI) and temperature at which the unit would experience in use.)

The shortened (by just a few thousands of an inch) sleeves then would just require a slightly shallower bore to ensure the top of the sleeve was flush with the deck of the block.

 

These engines use slip-in sleeves, no boring required to insert although rust on the outside could interfere with slipping it in. There's a good thread on Renntech from bbi showing the assembly of an engine with a GT3 case that would be informative.

 

I highlighted the rust but initially but I felt confident I could clean them up ok, however I didn't notice the marks in the gasket areas. I have spoken to vivid and they were very helpful asking me to send the pics and they would sort it out, so hopefully it will be taken care of without much trouble. I have checked the original pics I sent and the ones on the ad and some of the marks are clearly visible so they have always been there, but you have to be looking very closely for them.