This is "Marlene Diederich", my 1975 W115 300D. I have owned her since 1999, and I have recently decided to do some restoration work on her, rather than get rid of her. See Introductory Post for more info re: the origin of her name, etc.
Tuesday, March 1, 2011
Broken Piston Ring in #3 Cylinder
I pulled the rest of the pistons out of the block today. #3 piston had a broken ring (shown above). The other pistons appeared OK, again, to the untrained eye. No other visible damage. I will need to obtain a micrometer to measure them before deciding if they are still serviceable. I took the cylinder head to a machine shop today. They will examine it a let me know if it is still good, and what, if anything, it needs. I also visited a local engine rebuilder. Fascinating shop: he is rebuilding a 12 cylinder Ferrari, a Fiat Racing engine, a 1929 Bentley, a Jaguar 6 cylinder, an Essex, and a bunch of others. Nice fella from New Zealand, very cool place.
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