Re: Are Sierra thermostats OK?

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September 10, 2016 at 1:26 am #43713
frankr
Participant

    Non-thermostat controlled

    screen shots

    Closeup Non-controlled, Water completely bypasses thermostat.

    imgurl

    Thermostat controlled

    img host

    Notch in cap. (does this "leak" enough to purge the air from the cylinder jackets?)

    upload image online