851 lp gas ford tractor

lupe madrid · Jan 20, 2020

hi my name is lupe
I have a 851 ford tractor trying to get it started found lp gas is not passing to carburetor found diaphragm that sends gas to carburetor is rotted out and will nor pass through it needs to be replaced but I can not find a new one anywhere any ideas

Sean in PA · Jan 20, 2020

That part with the diaphragm is called the vaporizor. They made two versions but neither of them are available new any longer. . The early one was installed on tractors made from 1957-1960 and I can't even find a part number for that one, just part numbers for the individual parts. They switched to a different design at the beginning of 1961 and the part number for that one is B9NN9A542A. When I searched on that part number I found a used one that's up on ebay right now (not mine, don't know the seller), but it doesn't look to be in that great of a shape:

https://www.ebay.com/itm/Vaporizer-Assy-fuel-/293395009812

Someone on here a few months back, I don't remember who, said that they used a vaporizer from some other brand of tractor and it worked, but they had to modify things for it to mount up.

shaun wallace · Jan 20, 2020

Impco vaporizer/regulators are about all that is out there new and not expensive. That's what I did on last LP tractor that had bad one. It leaked bad enough it make oil gurgle in aircleaner.

851 lp gas ford tractor

lupe madrid

New User

Sean in PA

Well-known Member

shaun wallace

Well-known Member

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