Excessive Steam from Crankcase breather

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • CZero
    Noobie
    • Jun 2025
    • 8

    #1

    Excessive Steam from Crankcase breather

    Hello, I just picked up an E30 that has a built M20B25. It has a custom crankcase breather / catch can setup. Recently I noticed my coolant light came on and the car crept up over 212 F when normally its 165-172 when cruising and up to ~201 F on a hot day at a stoplight (in TX, 95 F weather.)
    I checked the coolant level and it was suddenly quite low and I could see steam coming out of the crankcase breather with the engine on when I was trying to refill the coolant and bleed it from the bleed screw.
    There is no steam coming from the exhaust that I could see, but there is just a little bit of water contamination under the oil fill cap and seems like a bit of oil in the coolant expansion tank. This is surely a blown head gasket, right?
  • 82eye
    E30 Mastermind
    • Jan 2009
    • 1847

    #2
    Originally posted by CZero
    This is surely a blown head gasket, right?

    with luck.

    Comment

    • CZero
      Noobie
      • Jun 2025
      • 8

      #3
      Originally posted by 82eye


      with luck.
      Hah, thanks. Yes, I hope it isn't a cracked head...

      Comment

      Working...