When is a Ford carb not a Ford carb, and how can you make it into one?
Posted: Sun Nov 14, 2021 4:22 pm
When you want a "speedy carb" for your car, you might look for Zenith made for a "T" in the flea market:
But instead, you find this...and what is it? It LOOKs sort of familiar, but still, it isn't quite right...nothing lines up where it should; the throttle arm is on the wrong side...and where the heck is the idle adjustment?
It's actually a Zenith S4BF for an Overland...though it sort of looks the same as the one for our beloved "T"s, the main casting is made from a completely different pattern and the idle adjustment is on the back side (not the front) and the choke cabling is in an inconvenient location as well...
By making a new throttle shaft and reversing the location of the throttle arm and then repositioning the choke apparatus, it can be converted to an S4BF which will bolt onto a Zenith manifold and work just fine on a Model T...With all new guts including throttle and choke shafts, new main jet, fuel tube and a new venturi and wear points rebushed, it's now ready for disassembly and final prettying up...
Here's the back side, showing the idle adjustment
But instead, you find this...and what is it? It LOOKs sort of familiar, but still, it isn't quite right...nothing lines up where it should; the throttle arm is on the wrong side...and where the heck is the idle adjustment?
It's actually a Zenith S4BF for an Overland...though it sort of looks the same as the one for our beloved "T"s, the main casting is made from a completely different pattern and the idle adjustment is on the back side (not the front) and the choke cabling is in an inconvenient location as well...
By making a new throttle shaft and reversing the location of the throttle arm and then repositioning the choke apparatus, it can be converted to an S4BF which will bolt onto a Zenith manifold and work just fine on a Model T...With all new guts including throttle and choke shafts, new main jet, fuel tube and a new venturi and wear points rebushed, it's now ready for disassembly and final prettying up...
Here's the back side, showing the idle adjustment
