Hello all!
just registered in hopes of getting some help with my new-to-me Farmall 806. It seems like everytime i have a tractor question and do an internet search i always find some good information on this site, so i figured i might as well become a member ... it's not like i'm ever not going to have a tractor (or two), right?
my 806 starts great and runs well .. for about 20 minutes, then it noses over and tries to die. after much searching, and talking with the shop guys at the local Case dealer he directed me to the manifold heat control valve. his experience shows, and internet threads confirm, that these are a know issue for a tractor that runs well but noses over after a short period of time.
So i've "rebuilt" the carburetor (got a kit at TSC and used as many of the parts as fit) and that went well (it started and ran well tonight after reassembly), but i'm unsure how the manifold heat valve is supposed to be oriented.
i found the valve weight partly stuck in the "down" or "rearward" position. i got it free'd up so the weight swings from vertical to the rear, or "down" position. the engine runs well with the valve held by hand in both positions. The shaft is connected firmly to the weight and the spring moves when the weight moves. now, whether the valve is properly attached in the manifold is anyone's guess, but i have to assume it is at this point because it didn't take much to get the assembly to move rather freely.
which way is the valve supposed to be when the engine is cold? it seems like it should be vertical, and the spring should relax as it warms up letting the weight fall to the rear. If this is the case, it appears that i may need a new thermostat spring as it doesn't appear to have the ability to hold the weight "up"
am i on the right path?
thanks in advance for any help.
Mike
just registered in hopes of getting some help with my new-to-me Farmall 806. It seems like everytime i have a tractor question and do an internet search i always find some good information on this site, so i figured i might as well become a member ... it's not like i'm ever not going to have a tractor (or two), right?
my 806 starts great and runs well .. for about 20 minutes, then it noses over and tries to die. after much searching, and talking with the shop guys at the local Case dealer he directed me to the manifold heat control valve. his experience shows, and internet threads confirm, that these are a know issue for a tractor that runs well but noses over after a short period of time.
So i've "rebuilt" the carburetor (got a kit at TSC and used as many of the parts as fit) and that went well (it started and ran well tonight after reassembly), but i'm unsure how the manifold heat valve is supposed to be oriented.
i found the valve weight partly stuck in the "down" or "rearward" position. i got it free'd up so the weight swings from vertical to the rear, or "down" position. the engine runs well with the valve held by hand in both positions. The shaft is connected firmly to the weight and the spring moves when the weight moves. now, whether the valve is properly attached in the manifold is anyone's guess, but i have to assume it is at this point because it didn't take much to get the assembly to move rather freely.
which way is the valve supposed to be when the engine is cold? it seems like it should be vertical, and the spring should relax as it warms up letting the weight fall to the rear. If this is the case, it appears that i may need a new thermostat spring as it doesn't appear to have the ability to hold the weight "up"
am i on the right path?
thanks in advance for any help.
Mike