Thermostat for marinized engine IDI 6.9L diesel

Discussion in 'Diesel Engines' started by Three Ts, Jul 14, 2012.

  1. Three Ts
    Joined: May 2011
    Posts: 37
    Likes: 2, Points: 0, Legacy Rep: 28
    Location: San Diego

    Three Ts Junior Member

    The boat I bought a few months ago has a 1982 PCM 6.9L diesel (International engine marinized by PCM). I can't find any manuals on the PCM motor. Can anyone tell me whether or not the thermostat used on a marinized motor would be the same as the automotive version of the motor? I want to replace the t-stat since the boat sat unused for many years, but not sure if the Ford Dealer part for the Ford application of the 6.9L engine is the same.

    Thanks.
     
  2. CDK
    Joined: Aug 2007
    Posts: 3,324
    Likes: 147, Points: 63, Legacy Rep: 1819
    Location: Adriatic sea

    CDK retired engineer

    Assuming the engine has a heat exchanger, it is OK to use the standard automotive thermostat.
     
  3. Three Ts
    Joined: May 2011
    Posts: 37
    Likes: 2, Points: 0, Legacy Rep: 28
    Location: San Diego

    Three Ts Junior Member

    Thanks. In absence of any other info, that would be my only choice anyway. My simple minds tells me that in a closed loop system, the t-stat should open at the same temp to maintain the same stabiled operating temp regardless of the application and method of external cooling (radiator vs heat exchanger.)
     
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