Part number Tecumseh CARB HM80

Discussion in 'Mechanic and Repair' started by hawlisjawt, Dec 14, 2011.

  1. hawlisjawt

    hawlisjawt LawnSite Member
    Posts: 2

    Hi, just bought an old white snowblower 8HP with Tecumseh motor.


    I need to find the part number before ordering a new carb because this one is leaking gaz.

    My motor number and serial:

    HM80-155006

    SER33160D (NOT SURE ABOUT THE *D*)

    FLOAT STYLE carb

    My carb have idle mixture screw and the main mixture screw under the bowl.

    Let me know if you need more info or maybe a photo to get the part number to find my replacement part.

    Thank you.:laugh:
     
  2. dutch1

    dutch1 LawnSite Silver Member
    from Jayhawk
    Posts: 2,231

    Is there a need for a new carb? Where is the carb leaking? Most likely you have a bad needle/seat or a float that is bad. Take the carb apart and clean thoroughly.

    Unless the carb is terribly corroded, you should be able to rebuild with part #631021B(needle/seat/bowl gasket), a couple #632547 orings and a bowl nut gasket(don't know that number off the top of my head).

    I think you will find the link typical of your carb:

    http://outdoorpowerinfo.com/repairs/tecumseh_carb_632107.asp

    On older stuff, a leak can develop due to a cracked inlet elbow where the fuel line fits to the carb. On occasion you will find a float that has either developed a hole or the solder seam has developed a leak. If the float takes on gas, it will sink in the bowl, failing to shut off fuel at the needle/seat.

    As best I can tell, the carb part number is 631678.

    Pick your poison.
     
  3. dutch1

    dutch1 LawnSite Silver Member
    from Jayhawk
    Posts: 2,231

  4. ArenaLandscaping

    ArenaLandscaping LawnSite Member
    Posts: 230

  5. Restrorob

    Restrorob LawnSite Fanatic
    Posts: 11,024

    Hey ArenaLandscaping, You try'n to get on the payroll around here ? :laugh:
     
  6. piston slapper

    piston slapper LawnSite Platinum Member
    Posts: 4,240

    Ditto Dutch.
    Clean the carb and install a new needle, seat, and float
    Carb repair 101. The older techumseh carb are basically
    The same since they were built by Clinton back in the 60"s.
    Posted via Mobile Device
     
  7. ArenaLandscaping

    ArenaLandscaping LawnSite Member
    Posts: 230

    :nono: lol
     
  8. hawlisjawt

    hawlisjawt LawnSite Member
    Posts: 2

    Ive found today that my shutoff valve is leaking. Because i drain my carb after use and card have fuel in the bowl!

    I will change this part its not s expensive. Maybe the gaz hose too.

    Of course ill do a rebuild with the kit they sell its cheaper..

    A new fuel bowl (mine is rusted at the bottom inside)
    Carb rebuild kit
    Shut off valve and 2 feet of gaz hose

    thanks guys for your replys
     

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