![]() ![]() The specifications on how to adjust the TC’s were a closely guarded secret at the Zenith Carburettor factory and were never revealed to any known, living person! However in doing so, you must remove the adjusting nut, and unless you knew that the middle nut was an adjustment….you were doomed. When this happens the owner usually pulls the TC’s apart, removes the bi-metallic strip, cleans off the gunk and puts it back together again. The other end of the strip engages a plastic plunger with a conical end which slides in a cylindrical extension of the housing and thus forms a regulating valve.Ĭhanges in temperature causes the bi-metallic strip to flex, moving the plunger in its bore, regulating the annular area around the bore thus controlling the amount of by-pass air that is allowed into the carburettors mixing chamber.”Ī common problem with the TC’s is that the plastic cylindrical plunger becomes stuck, either open or closed due to buildup of gunk. “The temperature compensator (TC) is a rectangular housing with a plastic cover that contains a bi-metallic strip, one end is secured to the housing with a screw or rivet, and an adjusting nut is located part-way along its length. ![]() The Art of Temperature Compensator Adjustmentīy Steve Sutton, exactly are Temperature Compensators? To paraphrase the Haynes ‘Zenith-Stromberg CD Carburettor’ owners workshop manual:
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