28-01-2020, 05:28 PM
Hi Adam
Are you sure the ignition side is spot on?
It could be that your fuel pump is the cause of the problem. The 22FZ needle valve, float and butterfly actuators were designed for gravity feed, pressurising the assembly could result in flooding. The carb is relatively critical to float height.
However the Mazak material of the 22FZ doesn’t last well and post war Austin recommended fitting a Zenith 24T2 which was in use on several makes of tractor. The Bristol A7 club web site has a very good article on this carb and it’s fitment to early Sevens.
Of course you could always fit an SU. There are many threads in the forum on this mod.
Cheers
Howard
Are you sure the ignition side is spot on?
It could be that your fuel pump is the cause of the problem. The 22FZ needle valve, float and butterfly actuators were designed for gravity feed, pressurising the assembly could result in flooding. The carb is relatively critical to float height.
However the Mazak material of the 22FZ doesn’t last well and post war Austin recommended fitting a Zenith 24T2 which was in use on several makes of tractor. The Bristol A7 club web site has a very good article on this carb and it’s fitment to early Sevens.
Of course you could always fit an SU. There are many threads in the forum on this mod.
Cheers
Howard