Posted by Paul f on August 04, 2010 at 06:14:30 from (205.244.38.212):
I was going to overhaul the carb on my M. I had picked up the kit before I took the carb off. I had assumed the tractor was a straight gasser as the fuel tank does not have two sections. After cleaning up the carb I found the ID tag and it is a Low cost fuel carb(47387DB).
A couple of questions. With the tractor I got a letter from Rick Tworek at Case_IH indicating the tractor (FBK76832) was built in 1944. In the past he has provided me with a build card for my Case DC3 that showed what options were on it originally. I assume no such build card info is avaialble for Farmalls. Is there anyway to determine if the tractor was originally built for low cost fuel??
There are a few differences in the carb noticeably the fuel adjusting screw and its seat. Also the holes in the metering nozzle are obviously different. According to the service manual there is also a difference in the air bleed to the metering well.
Second question. Can I make this carb work better with gas? Currently it seems to run too rich. Should I get a gas carb or should I get a dual fuel tank and try to run Kerosene (that might be kind of fun....
Finally looking at the parts manual there seem to be 3 different cylinder heads...gas, kerosene and distillate (also valves are different). Is there a casting number on the head that would tell me which I have????
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Today's Featured Article - Oil Bath Air Filters - by Chris Pratt. Some of us grew up thinking that an air filter was a paper thing that allowed air to pass while trapping dirt particles of a particles of a certain size. What a surprise to open up your first old tractor's air filter case and find a can that appears to be filled with the scrap metal swept from around a machine shop metal lathe. To top that off, you have a cup with oil in it ("why would you want to lubricate your carburetor?"). On closer examination (and some reading in a AC D-14 service manual), I found out that this is a pretty ingenious method of cleaning the air in the tractor's intake tract.
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