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oil contamination

  1. Drivetrain & Performance
    The 350 in my 73 nova started knocking awhile back. I took the heads off and the machine shop said two of the valves were bent. While they're fixing that I'm trying to prepare myself for the reassembly. When the heads were removed the oil and antifreeze were not drained and some of the...
  2. Drivetrain & Performance
    Ok this one has me baffled. I drive 6 cyl 194. My oil breather was blocked up so I replaced it with a standard oil filer cover intending to get a new breather in a day or so. I forgot, two weeks went by and I was topping off the oil when I removed the oil filler cover. The underside looked like...