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Subject: Difference in carburetors

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Jim    Posted 08-27-2020 at 07:16:12 [URL] [DELETE]        [Reply] [Email]  
  • Difference in carburetors
  • I have two Marvel Schebler carburetors that have the sediment bowls mounted on the carb, but they do not have any ID tags. I want to rebuild one of the them (the one that came on tractor) for a 1958 641with a 134 engine. My question is are all the carb bodies the same and just the jets inside different or are the inside of the bodies different. Am I safe in just ordering the kit for the specific tractor or do I need one for a specific carb, how to know which way to go? Thanks

    Tim Daley(MI)    Posted 08-28-2020 at 16:10:38 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Difference in carburetors
  • The best carb kits for M/S units is the TISCO brand and there are a few different ones get from Dennis Carpenter. The NAA/600/700 w/134; used model TSX-428 or TSX-580. DC #EAF-9590-M. DC #31254-M used w/134; 501, 601, 701, 2000 engine, for TSX-765 and TSX-692. Check the hole spread on the carb flange to match with manifold flange face holes. Also, check the sediment bulb -some have it attached to carb, and the fuel line intake elbow. Look in your manuals for pictures of the carbs. As far as internal parts, some changed, larger float, shafts, venturii, gaskets, but don't hold me to that. If you dismantle, keep parts separate.


    Tim Daley(MI)


    Tim Daley(MI)

    Jim    Posted 08-28-2020 at 17:06:45 [URL] [DELETE]        [Reply] [Email]  
  • Re: Difference in carburetors
  • These carb have sediment bowls attached both will fit tractor, my question is are the internal passages the same on different model carbs and just getting the kit for the year you are using it on makes the difference ?

    Tim Daley(MI)    Posted 08-29-2020 at 10:19:56 [URL] [DELETE]        [Reply] [Email]  
  • Re: Difference in carburetors
  • Go to the Dennis Carpenter tractor catalog page and scroll thru the parts. Many of the parts are the same and each part will list years it was used -I.E. "39-64". You could get one or both kits, go thru part by part and verify old one to new one. If lets say the throttle shaft was different, it should match up to the one in your kit. If you get a kit and old part isn't the same, get one that is from the catalog. Each part is sold separately too. Are you sure you have a M/S carb? I have seen very few that didn't have an M/S tag. Can you post or send me pictures? There are some OEM Manuals in our forum here too you can download. I can tell if it is M/C carb or aftermarket. If you wish, as I rebuild M/C carbs in my sleep, you can send me one or both and I can look at them, rebuild as well. I can compare to some units I have that are marked as well.

    Tim Daley(MI)

    JMOR    Posted 08-28-2020 at 23:01:33 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Difference in carburetors
  • the TSX number it what counts.

    Jim    Posted 08-29-2020 at 04:46:27 [URL] [DELETE]        [Reply] [Email]  
  • Re: Difference in carburetors
  • What if you donít know the number, no Identification tag?

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