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  1. J

    5.7 getting water in cylinders

    I have a 97 5.7 mercruiser EFI. I went to start boat today and engine was locked up. Removed spark plugs and had water in cylinders 7&8. I winterized last year. Ran antifreeze and then drained block and exhaust manifolds. I don’t understand where water came from if I drained everything.
  2. J

    5.7 mercruiser EFI leaking fuel into cylinders

    I have a 97 Chaparral 2330SS. 5.7 mercruiser EFI. A couple of months ago I tried to start engine and it was locked up. There was fuel in cylinders 4&6. Also about an extra quart of fuel in oil pan. Rebuilt TBI and installed new injectors. Ran fine until I went to winterize engine and same thing...
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