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coolant temp doesn't indicate internal comb. temp?

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    #1

    coolant temp doesn't indicate internal comb. temp?

    Correct? So you could be running lean and hot in the combustion chamber but the coolant guage could look find and dandy?
    Tags: None
    #2
    my spark plugs literally look pristine white except piston1 which has a little tan... I think I'm running really lean and could cause engine damage. First thing I will look at is ignition timing but I am unsure if this could be a cause.

    Comment

      #3
      If you are truly concerned about running lean, get a wideband o2 sensor and a wideband air/fuel ratio gauge.
      The coolant temp gauge only tells you the temperature of the coolant. You could be detonating in the combustion chambers and not significantly heating the coolant.






      Comment

        #4
        Originally posted by deevergote View Post
        You could be detonating in the combustion chambers and not significantly heating the coolant.
        how is this ? can this be bad ?
        this was put together by evil_demon_01 . You can also fined all this and more by him in the Common Beginner Technical Info can be found in here. PLEASE READ HERE FIRST

        Not this one though.1990 to 1993 accord fuel psi .

        Car safety checks
        Diagnose a Check Engine Light (also S/D4 transmission error codes)
        How to Set Base Idle Properly (F22ax, F22bx)
        Cheapest Suspension Setup to Lower Your CB7
        Fluid Capacities

        Comment

          #5
          Originally posted by Accord problems View Post
          how is this ? can this be bad ?
          The Combustion chamber is not the coolant system.
          Yes detonation is bad.

          The combustion chamber is the inside of the Sleeve that the pistons run in.
          The coolant system is the outside of the sleeve.


          Detonation won't heat the coolant system up fast enough to directly show it on the gauge instantly.






          As for the OP's question - The coolant temp is not directly/solely related to the internal combustion temp as it is also effected by other factors.

          What you need to measure the internal combustion temp is a Exhaust Gas Temperature (EGT) Gauge for each cylinder, combined with a Wideband.


          Car Safety / General Servicing Checks --------Basic suspension checks

          My 5.7 LS1 Holden Ute

          A "Finished" project car is never finished until its been sold.

          If at first you don't succeed, Try again. Don't give up too easily, persistance pays off in the end.

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