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Subject: 860 Carb

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Jack - Iowa    Posted 12-26-2021 at 17:08:53 [URL] [DELETE]        [Reply] [Email]  
  • 860 Carb
  • Pretty sure I've read about this before.
    Float valve and seat started leaking. Have a new valve and seat in hand.

    Old one had a spring which hooked the valve to the float.

    New one does not have the spring or a place to connect it.

    Before I reset the float I need to verify this is all right to use.

    Thanks,

    Jack

    Tim Daley(MI)    Posted 12-26-2021 at 18:46:56 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 860 Carb
  • HI JACK-
    The Marvel-Schebler OEM Carb Needle & Float Valve Seat consists of 3 pieces. There is the brass seat, a gasket, and the needle valve. Several years ago somebody decided to re-invent the wheel and now made it a 4-pc assembly. Why? This now had a brass seat, gasket, special needle, and a clip that hooked onto the needle valve and float. Forgot the clip? Gonna have problems. Forgot the gasket? Gonna have problems. Either part will work on your carb. I believe both now use the VITON tip on the needles. I prefer the old 3-pc design myself. Denny Carpenter & Just8Ns sell the old style. I also only buy the TISCO carb kits. For the N-Series use p/n C546V, and for the 800/900 models use p/n C547AV.


    MARVEL-SCHEBLER OEM STYLE NEEDLE & FLOAT VALVE:


    AFTERMARKET STYLE NEEDLE & SEAT FLOAT VALVE:

    Tim Daley(MI)

    Jack - Iowa    Posted 12-26-2021 at 20:32:10 [URL] [DELETE]        [Reply] [Email]  
  • Re: 860 Carb
  • Thanks Tim,

    I was not knowledgeable about the history. I have the three piece unit installed. Will require significant readjustment of the float which I will now proceed with. Would like to go install on tractor tomorrow but don't see that happening now. It is to be in the low 40's tomorrow and much lower the rest of the week. Holidays are interrupting my plans.

    Jack

    Tim Daley(MI)    Posted 12-28-2021 at 07:02:12 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 860 Carb
  • The FORD 860 Tractor used the Marvel-Schebler TSX-593 carburetor, and would be listed in the MPC as FORD p/n EAF-9510-D. Late 800 Models switched to the M/S TSX-706 model, with FORD p/n EAF-9510-G. I'm not sure what the float gauge is on the Hundred Series Models. I know the N-Series TSX 33 & TSX 241 carbs are set: GO = .26" and NO-GO = .297". The mean would be .2785" so I have always used a 9/32" (.2813") drill as my float set gage. Many carb articles say to set float at 1/4" but I've found that to be too low. Float level is measured from the nearest surface to the body gasket. To adjust, carefully bend the brass float at the hinged arms point.

    FORD N-SERIES TRACTOR CARBURETOR FLOAT LEVEL POSITION:


    *FORD G0/NO-GO GAGE #9550-D SHOWN. USE A 9/32 DRILL TO SET AT MEAN.

    M/S TSX CARB INTERNAL OPERATION VIEW:




    Tim Daley(MI)

    Jack - Iowa    Posted 12-28-2021 at 08:10:38 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 860 Carb
  • Thanks Tim,

    I have the Ford Shop Manual, Parts Manual (which has error's in it!) and the FO-20.
    Also manuals for the N's.

    Find it interesting the picture above with the Float adjustment shows a Go of .260

    Rather verifies your statement.

    From a repair kit I find the statement "all TSX to be set at 1/4" (not verbatum)

    Jack

    Tim Daley(MI)    Posted 12-29-2021 at 08:52:27 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 860 Carb
  • Yep, they use 1/4" because it is convenient and a common size since that Ford gage listed does not exist anymore and I've never seen one and don't know of anyone ever having one. Dealer mechanics probably had one but most likely got lost or scrapped out when the dealer went under. Most likely not ID'd with a FORD logo and/or part/gage number. Here's a scan of the TISCO Carb Instruction Kit. Observe Page 9.

    TISCO CARB KIT C546V FOR TSX MODELS INSTRUCTION SHEET:



    Tim Daley(MI)

    Tim Daley(MI)    Posted 12-29-2021 at 08:48:40 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 860 Carb
  • Yep, they use 1/4" because it is convenient and a common size since that Ford gage listed does not exist anymore and I've never seen one and don't know of anyone ever having one. Dealer mechanics probably had one but most likely got lost or scrapped out when the dealer went under. Most likely not ID'd with a FORD logo and/or part/gage number. Here's a scan of the TISCO Carb Instruction Kit. Observe Page 9.


    TISCO CARB C546V KIT FOR FORD N-SERIES MODELS INSTRUCTION SHEET:



    Tim Daley(MI)

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