Well after measuring my pistons agian and comparing them to specs from the disc something isnt adding up. The turbo motor I took apart started fine in cold weather, had a good compression but spun a connecting rod bearing. When I measured the piston it was over 20thousands off the spec. However if it was that much off logic tells me that the piston should slappin around, have bad compression and marks all over the pistons and sleeves off slapping around,but there isnt. You can still see the machine marks from the factory. The same problem goes for the non turbo engine took apart. The pistons measure far off the spec yet there is no evidence of piston slap on the parts anywhere.

90.89 mm is 3.58" yet the piston I measured was 3.55". And yes I know how to use an outside micrometer. What are the real specs??

__________________
1986 300SDL, 211K,Dealership serviced its whole life
1991 190E 2.6(120k)
1983 300D(300k)
1977 300D(211k)