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Picture of my new F-12 - fuel pump / sediment bowl question

B

bmagee

Member
I finally got my new tires and rims on my new to me F-12.

My question is I have a small miss with the tractor at start-up. Once it runs and warms up the miss seems to get better.

I notice when running I see bubbles or air once in a while in the sediment bowl. Is this normal? could this be part of my problem?



mvphoto1839.png
 
The fuel is not making a difference in the running. It is normal in fuelto have vapor bubbles. The issue may be a tight valve. The measurement of the lash can be done very accurately with a dial indicator is there are wear pockets in the rockers. Align the dial with the tip of the valve. Jim
 
No one has scolded me yet, but I just bought the tractor and not many have had an opportunity to yet....lol

It is a 1937 which should be red in color (IH-50 I believe). I plan to strip down, sandblast parts and re-paint someday soon.

The previous owner has apparently rebuilt the motor. It does not smoke and seems tight.

Janicholson's comment about a tight valve does make sense now. I had thought I need to go and check all the valves.
 
When I grind feed with my M I have to fill the tank more than half full. The vibration/resonance of either the tractor or the grinder makes the gas dance in the tank. Almost like a rainstorm is coming down in there. If you take off the fuel cap fuel will come up about 4 inches out of the tank. If I don't have enough gas in it the sediment bowl will draw air. Took a while to figure that one out.

Put more fuel in it. May be due to the vibration.
 
Have you tried adjusting the mag lever after it starts. The "advance" adjustment provided by the lever is there to allow the operator to adjust the mag depending on engine speed and load. Way to many people just move them to full advance after they start. Otherwise, First thing I would do is change the plugs, Make sure the wires are perfect (any defect is amplified in that metal tube),and then check the mag cap, carbons, rotor, and points. They all have to be perfect.
 
I need to do a little work to the mag I know. It will not ground out when trying to shut off. I know I need to bend out the metal tab to make contact and kill it.

I am planning on new plugs, new wires and re-build and re-set the carb. I am trying to eliminate one thing at a time. To make sure I am clear - I should have the lever at about 12:00 or 1:00 when starting - correct? and then left of towards 10:00 when running. Right now mine runs best at about the 10:00 position.
 
My F14 did the same thing,when I redone the tractor the fuel pump rod was wore out along with the fuel pump,so I welded the rod and it was a little to long and was pumping more gas than it should,and yes it did miss just a little.I than ordered a new rod then it wouldnt pump,so I put the old rod back in and added a extra fuel pump washer behind the pump to act as a shim,did this I think twice and the bubbles cleared up along with the miss.Just for fun when its running just start closing your sediment bowl down and see if your bubbles clear up

jimmy
 
That tractor probably looks better than when new.
Often wonder why my dad didn't have row crop tractors for so long. I told him when I was teen to get rid of the horses and mules. Hal
 
its not quite as nice up close as it appears. I still plan on re-painting someday. maybe after I get my H put back together.

For those questioning the cleanliness, I have my wife mop it every night :lol:

and if you believe that - I have some ocean front property for sale here in Indiana for you......
 
Dad didn't get rid of his Percherons until early 1956, We did have a couple of tractors by then, but he loved his horses.

As a kid, I used them to mow hay, rake hay, clip pastures, haul manure and they were useful to pull the tractors out when they got stuck. I even broke one to a hay mower once - if they can be broken that way, they'll always work to any other tool/machine.

Still got a picture of me (a babe in arms) with him and one of his beloved horses. That would have been in the late '30s, I think.

Stan
 
Where is that oceanfront property you'll sell? I might be interested - always wanted to move back home, but would miss the ocean down here.

Stan
 
My grandparents had a store where they sold horse and cow feed. They told him the tractors would be a passing fad. They didn't tell him about tractors when he was in Agriculture college. He could've learn more from area farmers. You can't work those big horses when the temp is near 100 degrees when mowing, cultivating or plowing.
Our neighbors used a Oliver 70 for cultivating corn at night when it cooled. We had the same problem at work when computers came out. They were wrong again. Hal
PS: When my brother broke the tongue on a horse pull sickle bar mower I cut the tongue off short and made brackets so we could use the 10-20 tractor. Didn't take very long to mow a field of hay with my dad on the mower. Then they bought an H and C. Had a 7-ft mower on the H. My brother and I left for the military when the Korean War started.
 
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