Cant seem to solve the constant tiny drip from my Zenith 24t carb. Tractor is new to me and previous owner has rebuilt the carb with new parts. I've gone through it again and can't see anything amiss.
Gasket seems to seal, surfaces seem good, float is new and not holed. I've installed a filter and tap downstream of the bowl in case it's getting tiny bits of crud from the tank but I still get this tiny drip from the air inlet after a few hours.
I've been though every drilling and they are clear.
The needle valve is clear and sealing when depressed by hand but maybe it's slightly faulty and the float pressure isn't enough to stop the fuel flow completely?.
After reading a few posts they do mention the possibility that even new valves don't seal. Is this common?
There obviously insn't much pressure on the valve so I guess even a tiny fault could cause it to stop sealing?
Gasket seems to seal, surfaces seem good, float is new and not holed. I've installed a filter and tap downstream of the bowl in case it's getting tiny bits of crud from the tank but I still get this tiny drip from the air inlet after a few hours.
I've been though every drilling and they are clear.
The needle valve is clear and sealing when depressed by hand but maybe it's slightly faulty and the float pressure isn't enough to stop the fuel flow completely?.
After reading a few posts they do mention the possibility that even new valves don't seal. Is this common?
There obviously insn't much pressure on the valve so I guess even a tiny fault could cause it to stop sealing?