Reply To: compression on 1953 gale 5ph

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February 3, 2024 at 12:01 pm #284598
JACQUES
Participant

    Some run ok at  high 60s  like a 9.5hp    … imho   look for 75-80 s  or more .

    the motor is  70 years old  and likely  lost  some  PSI  depending on the amount of TLC it got all these years.

    what  psi do you have ??      0 psi may indicate just a bad cyl. head gasket   or a  cyl.head that needs  a good polishing job

    Joining AOMCI has priviledges 🙂