Fordson f vapor locking

Zach bair

New User
Looking for some advice. Finishing up restoring a 26 fordson f. I run it and runs good for about 5-10 min then starts getting rough and can only keep running on full choke. Seems to be vapor locking on me it has the Kingston set up with the fuel bowl mounted low on the exhaust manifold.any help would be greatly appreciated! Zach
 

Is the setup as Original..???

I would place a piece of non-flammable insulation between the Exhaust Manifold and the Fuel Bowl and see if that cures the problem..

A fellow in our Club has a very Early Ford (does not even have separate rear brakes).

He says it has been "Souped Up" with an aftermarket Hi-Compression Head..it sure SOUNDS like a Model "T" when running...I think maybe he pulls 2x12", but not sure it is not a single bottom plow..
If it is too wet, the Left Rear will run 20 miles, for the tractor to 1/4 Mile..( it is still on Steel)..
 

If it truly is vapor-locking, one of the old cures to lower the fuel vapor pressure was to
add some kerosene or diesel fuel. Modern gas has a high vapor pressure and will more
easily vapor lock. One small tank is used for gasoline for starting. Larger tank is for
running on distillate, a lower priced fuel. Do you switch over?

Does it do better in cool weather?

Like others have said, you might be able to deflect heat or insulate
with tin-foil, etc. A wet rag wrapped around the piping and carb should keep it cool for
a short time. In the olden times, the intake was heated to help vaporize the distillate.
 

There are plenty of videos that show what a Fordson can do. Or not.
The high compression head was a bridge too far. It would overload
the crankshaft bearings. The engine was pretty much an enlarged
Model T engine. It was produced until 1952. The last years offered
a Perkins diesel alternative, and after a few years, some were
retrofitted.

The old Fordsons used a worm gear rear end, and it sort of "held" the
tractor with just a slight brake, which was at the end of the clutch
pedal travel. There was another ratio, for industrial, or road use.
It had a much higher travel speed.

The Industrial model eventually had a down-draft carb, a dry air cleaner, and
the possibility of an electric self-starter and electric road lights.
From what I've seen, the steering wheel is close to the tank, and
they didn't use fenders to control dust. The wheels had hard-rubber tires.
With Fordsons, many variations were possible.

Some of the features changed as the years passed. Converted wheels with
rubber tires were common.
 
Thanks guys for the responses. It is a factory set up on it. Have never heard it run until 2 months ago we stripped it all down and restored it. Now just trying to get this issue figured out. The fuel bowl gets so hot u can hardly touch it and I've ran ethanol free gas mixed with kerosene and still does the same thing. I might just try to find a gasoline carb and intake for it. The gentleman at fordson house said these old Kingston set ups are very troublesome Zach
 

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