Correct Carburetor For En330

[frd1419]

Any one know what the correct carb should be for a 1941 type 45 with an en330 motor? One place I saw mentioned a Stromberg SF5. Currently I have a Zenith carb on it. Also should there be a governor?

[Greg Rider]

My '51 A-30 has the EN330 engine and has a Zenith. Rebuild kits are available at NAPA. As far as a govener, ?????????????? its anyones guess. My truck was a former fire truck and it had a butterfly thingy that is between the carb and manifold and was the govener. If she over-revved it would close off. I took the butterflies and the shaft out of it and closed the hole up with JB Weld. There was nothing attached to it so I don't know how it was hooked up to regulate RPM's

[Firemack]

FRD1419,

Check with the Mack museum, they should be able to tell you what carb was on the truck and if it had a governor. The governor works from a centrifugal weight on the flywheel that pushes the governor mechanism up and shuts off the airflow to the carb. If it is a firetruck it most likely had a governor. You might try to get the parts that Greg took off his truck adn install them on your truck.

Firemack

[Greg Rider]

All my truck had was the shaft and butterflies. There was nothing else when I got it. I took that stuff out because it was causing a terrible vacuum leak . I don't have any of those parts. . Ask Harvey Eckart, he is the firetruck guru .