Farmall Cub float setting

[forrest allen]

ok i checked on the float setting and yes 1 13/32 is correct. i would have liked to see the arms bent closer to the float. but we will go with this. to check the needle if its sealing i sometime install the top half back on the tractor and then open the gas valve and put a light pressure on the float upwards and there sound be no gas leaking. that faster than rigging something up. plus a person can also rig up a clear hose from the bowl drain and hold it up along side the bowl and it will show the gas level. plus there is a float drop to check also. there should be a tap behind the seat to bend also. so ok hold that top half the correct way and let me see the float drop. it should be stopping just of the seated needle. a carb kit will have this info.

and also i see that float pin area is pretty bashed up. that pin should slide nicely threw the float hold down little arms. it looks sloppy to me, might need to just snug them down a bit so the float dont wiggle around but still move up and down easily.

I think too much travel. The float pin slides very easily. No resistance.

 

[rustred]

I think too much travel

YEP!, bend that tang so the float stops when the needle opens.

 

[forrest allen]

YEP!, bend that tang so the float stops when the needle opens.

 

[rustred]

report your adjustment

 

[forrest allen]

dont see any difference. lets see that tab behind the seat, its dropping way too low.

Look again. I uploaded the wrong file.

 

[rustred]

looks a lot better , the needle looks new, i would be tempted to give it just a smidgen less drop. the thing is you dont want it sitting on the bottom of the bowl. i dont have it in my hands.

 

[rustred]

did u get it adjusted ?

 

[old]

No rubber tip.

If not rubber tipped you may not have the float seat as tight as it needs to be so it leaks around the seal

 

[rustred]

If not rubber tipped you may not have the float seat as tight as it needs to be so it leaks around the seal

relax! i am working on it.

 

[forrest allen]

did u get it adjusted ?

I did. I installed it and it's at the almost point. It fired and tried to start but didn't. I got the best result by increasing the throttle half way so I think it's still starving for fuel. It isn't flooding out the carb now though. I tried 1, 1.5, and 2 turns out on the needle. Not much change. Choking doesn't help at all. But maybe it flooded the cylinders too and needs a moment now. I don't know.

 

[rustred]

I did. I installed it and it's at the almost point. It fired and tried to start but didn't. I got the best result by increasing the throttle half way so I think it's still starving for fuel. It isn't flooding out the carb now though. I tried 1, 1.5, and 2 turns out on the needle. Not much change. Choking doesn't help at all. But maybe it flooded the cylinders too and needs a moment now. I don't know.

pull the plugs out and lets see them.

 

[old]

I did. I installed it and it's at the almost point. It fired and tried to start but didn't. I got the best result by increasing the throttle half way so I think it's still starving for fuel. It isn't flooding out the carb now though. I tried 1, 1.5, and 2 turns out on the needle. Not much change. Choking doesn't help at all. But maybe it flooded the cylinders too and needs a moment now. I don't know.

Remove the air cleaner tube off of the carb. I don't remember if that is real easy or not I have not had ot do it to my cub in a long time. Then hold your hand over the air intake of the carb while trying to start it, you should both get a good suction and gas on your hand doing that

 

[forrest allen]

pull the plugs out and lets see them.

Either the needle is sticking now or the float is hanging up. I opened the main jet and no gas. Tapped on the carb and got gas but still won't fire. I will pull the plugs.

 

[rustred]

pull the plugs out and lets see them.

even one or 2 is good.

 

[forrest allen]

Remove the air cleaner tube off of the carb. I don't remember if that is real easy or not I have not had ot do it to my cub in a long time. Then hold your hand over the air intake of the carb while trying to start it, you should both get a good suction and gas on your hand doing that

Suction and wet but gas is flooding out again.

 

[rustred]

Remove the air cleaner tube off of the carb. I don't remember if that is real easy or not I have not had ot do it to my cub in a long time. Then hold your hand over the air intake of the carb while trying to start it, you should both get a good suction and gas on your hand doing that

i said i am diagnosing if its flooded or not.

 

[rustred]

i said i am diagnosing if its flooded or not.

so why flood it more !!!

 

[rustred]

Suction and wet but gas is flooding out again.

ok get some starting fliud and give it a shot in the carb and try that.

 

[forrest allen]

even one or 2 is good.

Autolite 388

 

[rustred]

they are dry, so squirt some gas into each cylinder , about 6 spoon fulls. and choke it