Ford sidevalve V8 carby question

Tim Berry · #1 10-09-04, 14:46

The Carby on my Blitz is a model 21-29 (94). Have overhauled the carby as per the manual. When the engine is shutdown, fuel leaks out of the low power jet/horn into the manifold which then leaks outside at the carby base. Have checked the float level and the suction/output pressure of the fuel pump and all are within tolerences. Can anyone help with ideas? The amount of fuel lost is one third of the bowl.

Also can anyone email me the wiring diagram for the early instrument panel on the blitz. The ammeter setup is confusing.

Tim

Tim Berry · #2 13-09-04, 15:55

Found the answer after breaking down the carby. The float had a tiny hairline crack in it only just visible to the eye. Fuel however is a good penetrant and it was filling the float half up with fuel, thereby overfilling the carby, flooding the engine and causing the leak when the motor was shut down. My fuel burn should now return to 8 mpg instead of 4 mpg!