In case this has not been discussed: the drawings illustrating the Mocal oil cooler thermostat (copy attached) may not agree with what you have in hand: I have two of them (for which I checked) and the bolt heads on mine are at the ``large spring port" and not -as shown in the installation instructions - at the ``rod port".
So, an external check only may cause you to install it improperly - resulting in low or no oil pressure! Make sure to look through the port openings to identify supply (big spring) and return (small rod) ports correctly.
So, an external check only may cause you to install it improperly - resulting in low or no oil pressure! Make sure to look through the port openings to identify supply (big spring) and return (small rod) ports correctly.
