To the CIH engine connoisseurs (Hello Reinhard): as assumed, the piston bridge of the 1st cylinder is broken at the typical place. The engine had 9 bar compression on Zylidner 1 at the purchase condition of the car (was running flawlessly, slightly restless in idle) and after compressor conversion it is now completely broken, 3 bar residual compression. The following question arises to me: 1. Can I easily install another used piston? 2. Can I use the old pistons/oil stripping rings again ? 3. Who has a piston left? (the defective one has the measure 94,94)? 4. What do you say to the wearer image of the condenser bearing? (will all be renewed) Do not want the engine to be renewed, it should simply run for a while with c30ne cylinder head and compressor. If this does not work like above, comes in after a small overhaul of the available c30se, without compressor booms Many greetings Christian