| We now test Zenith carburetor sets on a test engine. This is the only way to be sure that the fuel pumps in the carbs are working together, and adequately. As noted elsewhere, the cavity where the pump sits can become larger over time and the pump will not sit correctly for proper performance. We will work as long as necessary, replacing the pump multiple times, until we get a pair that work synchronistically. Sometimes its okay first try, sometimes not. We're finding a light sanding of the leather skirt helps the pump fit better. Carbs have been known to be on the test engine for a couple of weeks. When these carbs get to your car though, they may still need some fine tuning as our engine is not your engine. This ability is courtesy of a Test Engine stand developed by Zalex Industries, which allows us to have a running engine outside of a car. We can check and balance your carbs in actual use, rather than just on a flow bench. We are currently only bench setting the Solex which is proving to be acceptable over 99% of the time, but we are working on building a test engine for the Solex also to improve that accuracy level. |