Carbs for the Johnny Cash HG/OC3/46

My crawler appears to be a mix of all three with an engine tagged as an IXA3 and stamped at the deck as an IXB3. The carb is missing. My updraft box had nothing useful, so I found a Marvel Schebler TSX 948 on an M-H tractor and a Zenith #11487A on a Wisconsin generator in a quarry yesterday. Both fit the flanges and I will have no problem with throttle/choke connections. What do you think will work best on mountain terrain and why? Does anyone have an internet location where I can compare jet/venturi sizes amongst the various TSX series carbs? Thanks.

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On the M/S carbs I have found there is 3 or 4 sizes of them. Small like the Ford *N uses which is likely to be about the same as the Cletrac engine would use. Then there is the medium and larger and extra large. I have an Oliver 60 engine in my Cletrac HG42 and it has part of an 8N TSX241 carb and the carb the Oliver 60 should have due to a cracked bowl housing area of the Oliver M/S carb and it has worked just fine till I got water in the oil
 
Mavel S. carbs come with 9 different venturi
sizes and three different bolt-patterns. TSX
carb comes in 7/8", 1", and 1 1/4" inlet sizes.
Venturis are in 9 different sizes.

Your engine calls for a TSX with an 11/16"
venturi, 47-589 main nozzle, 49-101L idle jet,
and 49-173 power jet.

Oem carbs were TSX37 and TSX472. Replacement
carb was a TSXU-832. Same carb used on a
Continental Y112, John Deere 30 combine,
Cockshutt 20, and IH F140, F240, and F330.

My HG with an IXB-3 engine has a Zenith 57062
carb and works fine.
 
Precisely what i was looking for. Thank you. Now I can adjust this carb to Oliver's specs when rebuilding it. I have a CO analyser I can use for fine tuning to adjust for modern gas. If i can set up four 3 barrel Webers on a 12 Cyl Ferrari, i can do this too. I have two big MS carbs in the box, from straight-8 engines, a brass Schebler (non Marvel), a Marvel (non Schebler) and a few more interesting carbs. Ebay for them soon.
 
I suspect if you can fit a carb on there that came
off an engine with same cubic inches and max RPMs,
you probably can't go too wrong. Something around
115-125 cubic inches.

John Deere 420 or 1010, Wisconsin VH4D, etc. That
TSX948 carb you have came off a 175 cubic inch
engine. Too big.
 
That would interest me, to. Since I have a lathe, a jet drill set, and a jet reamer set, I can re-size my existing jets rather than try to find some for sale. Part numbers don't help much for that option.
 
(quoted from post at 17:48:17 01/30/15) Precisely what i was looking for. Thank you. Now I can adjust this carb to Oliver's specs when rebuilding it. I have a CO analyser I can use for fine tuning to adjust for modern gas. If i can set up four 3 barrel Webers on a 12 Cyl Ferrari, i can do this too. I have two big MS carbs in the box, from straight-8 engines, a brass Schebler (non Marvel), a Marvel (non Schebler) and a few more interesting carbs. Ebay for them soon.
Must be a 365 or 512 boxer..... I had a C/4 with six twin choke webers and never could tune it as well as a qualified shop. Now have a 250GTE.... much easier to work on these.
 
I finally got to this tractor on my list of projects. The TSX carb has the specs listed above, no problem there. I am missing the idle mix needle and spring, the choke flap spring, and the spring around the choke shaft has broken but is not that important with a properly adjusted cable.
Does anyone have a TSX parts carb and is willing to sell and mail me to these small parts?
 

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