Craftsman Tractormodel #917270781
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Why doesn't my fuel pump on my craftsman lawn tractor pump gas.
I have a Craftsman Lawn Tractor, Model # 917.270781 with a 19 HP Briggs & Stratton Engine model # 42E707 Type # 2631-E1, that I let set up about a year. I started working on it about a week ago and I have done the following: cleaned the gas tank, replaced the fuel line and fuel filter, cleaned the carburetor- put new kit in it, replaced the 4 boult fuel pump body and a new fuel pump kit. and put fresh clean gas in gas tank. I get gas to the fuel Pump but the fuel pump will not pump gas in the carburetor. I thought I might have put it together wrong, so I took the carburetor with the fuel pump attached to the store where I bought the parts (Western Auto). They look at it and said it was was put together right. I can pour gas or starting fuel in the carburetor and it will start up Okay, but only runs as long as the fuel last. What am I doing or not doing wrong. Howard Snider
Posted May 21, 2010
Fred M, May 22, 2010
The fuel pump works by vacuum created inside the crankcase as the piston is moving up and down inside the crankcase.
Make sure vacuum hoses to not have any leaks or the fuel pump will not draw and push fuel to the carburetor.
The fuel pump works on a pulse from the engine. Check the hose that runs from the fuel pump to the engine block, If it gets disconnected or a hole in it the fuel pump won't run.
Test to be sure you are getting fuel to the fuel pump before replacing the fuel pump. There is a filter where the hose connects that can stop up.
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