View Full Version : Part number Tecumseh CARB HM80
12-14-2011, 05:24 PM
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:
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.
12-14-2011, 07:52 PM
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:
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.
12-14-2011, 07:57 PM
If your numbers are correct, here is a parts breakdown although carb parts are not listed.
12-14-2011, 08:17 PM
Your Carburetor Parts Diagram- http://www.partstree.com/parts/?lc=tecumseh&mn=WALBRO-631660&dn=CALME1631660-CA
Tecumseh Carburetor Identification,Troubleshooting and Service Guide- http://billious.com/dl/Tecumseh.Carburetor.Identification.Troubleshooting.and.Service.pdf
Carburetor # 631660a
Where is the carburetor leaking from?
12-14-2011, 08:25 PM
Hey ArenaLandscaping, You try'n to get on the payroll around here ? :laugh:
12-14-2011, 08:28 PM
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.
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12-14-2011, 08:32 PM
Hey ArenaLandscaping, You try'n to get on the payroll around here ?
12-15-2011, 07:50 AM
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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