Allis C replacement Carb

Anonymous-0

Well-known Member
Hi Guys. I was looking to put a kit in my 1945 C and I could not find the carb number listed under the C models. Then I did a part number search and found the number listed under the RC model which tells me the original carb was shelled out some time before me. 209663 or 9492 is the numbers on the carb I have now.

The RC model did not have a good reputation and I was wondering if the carb I have is worth rebuilding? what are it's differences between the 9492 and the 9705?

IS the new Zenith replacement carb listed in parts worth the 200?
 
You are right, that carburetor was on the RC"s and never on the C"s. Probably just a jet change.
Steve at B&B can supply a kit if you want to clean it and use it.
Steve"s email:
[email protected]
The new Zenith design with the adjustable high speed jet way out performs the original carburetor.
I have the new ones on my B"s and C and they work great.
 
Jeff,

Thank You for taking the time to answer my questions.

Can you tell me what jet sizes were in say a 9705 carb for a C so i can check what i have in mine to determine which diection i need to go with this.

Can you describe the better performance from the new carbs. Better throttle response atomization etc...

Also The tractor I have was sold to me as a C model. I believe it is but what is a surefire way to know for sure. The serial number is in the 35000 range. which I think some Bs had the same range..

Also I did email Steve and got an inital response but I am not sure yet which direction I am going to go with the carb...

Thank You
Jason
 
Jason, according to my calibration chart the only difference is the main jet which in the 9492 was a C52-6-19, and in the 9705 was a C52-6-18. Now someone smarter than me will have to explain why they are different. I thought both the C and the RC used the same 125 engine, so I don"t know why the carbs would be different. If you want the calibration chart, click on my email below and send me a message, I"ll reply back to you with it.
 
A C is about 6 ft wide outside to outside the rear tires. The steering box below the gas tank has an arm that sticks up. The steering rod to the front end connects to another arm under the radiator. There is a second gearbox under the radiator that steers the front end. Quite a few of the Cs had narrow front ends.
A B has the same radiator, motor, trans, gas tank, PTO and tires. The B is about 5 ft wide at the back end as each axle half is 6 inches shorter than the C. THe steering box below the gas tank has an arm that points straight donw. The arm has a ball for socekt on the end. THe steering rod goes to the left front wheel king pin area, not under the radiator.
 
if it is a C the serial # will start with a C
Likewise, if it is a B the serial# will start with a B if it is still original. There aren't a lot o rebuild kits available. they are kind of generic. They will work in the B, C, & CA carbs by brand, Zenith needs a Zenith kit. My dealer said there is one for the B, C, CA, and another one for the WC, WD, & WD45. Bob
 
Ryan, Thanks for the info. According to my reasearch the RC engine was the lower compression lower horsepower distillate engine

But I could be wrong I'm not a tractor expert, but i do like them
 
Well My C has a non Factory wide front but the steering arm under the tank points straight up.

I don't recall a C or a B beside the serial number but I will have to look again.
 
Just a caution on buying over haul carb kits.
I bought a carb kit for my AC Model B from nnalert Tractor that was supposed to be for my Zenith carb. The only parts in the kit that fit the Zenith was float bowl shut off valve and the gasket separating the carb castings.
 

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