Rebuilding the The Mercedes Cosworth 2.3-16 engine is not complicated but interesting. We found the timing chain rail almost worn through spreading metal through the engine. We removed the engine from the car replaced the rings and bearings, ground the valves replacing two valves along with the guides and seals. Replaced the timing chain and tensioner. Of course we replaced the oil pump and water pump with thermostat. Replaced the injectors and many of the damaged intake idle air hoses. A new clutch, pressure plate pilot and release bearings. The rebuilt Mercedes engine started up first try.
Dubbed The Daily Driver we recorded the first start and I must say it was rewarding to hear the engine running smooth and strong. Next step is replace the suspension and get the car to Pacific Raceway to record some lap times. We specialize in Mercedes Benz service and repair but this is the first one of these special cars we have seen at Master Auto Tech.
Fast forward, I have taken the car to the track for a performance driving day and it runs strong and fast. Fast of one hundred eighty some horse power. Its very well ballanced and is a real pleasure to drive flat our with the performance tires and coil over suspension but the brakes are way too small. During the third lapping period the brakes faded so badly I had to quit early. The other drivers were complaining about the smell thinking I was about to suffer a major break down. The brakes cooled and I was able to safely drive the car the ninety miles back home. I also confess to hitting the rev limiter more than once with out any complaint from the squrrells under the bonnet.