Question about Stihl Chainsaw 024 026 Oil Pump

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I need to change the oil pump in a stihl 026 chain saw but I am not sure how to access the pump. I believe it is beneath the armature but I am not sure how to take it off. Any advice or a schematic? Thanks, John

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Removing the Oil Pump

  • 1

    Pull off the spark plug's rubber boot. Unscrew the spark plug with the socket wrench. Remove the spark plug and insert the piston stop tool into the hole. Remove the starter cover and turn the flywheel by hand until the piston contacts the stop tool.

  • 2

    Unscrew the brake band's cover screws with the star Allen wrench. Remove the brake spring from its anchor pin with the end of the screwdriver. Caution: this spring is under a lot of pressure and may pop out unexpectedly. Remove the brake band from its seat on the crankshaft.

  • 3

    Remove the E-clip that holds the washer, sprocket and clutch drum to the crankcase. Pull them off the crankshaft. Unscrew the clutch's bolt with the socket wrench. Loosen the bolt clockwise and remove from the crankshaft. Pull off the washer. Remove the clutch shoes and the clutch spring.

  • 4

    Twist the worm and drive spring clockwise and remove them from the crankshaft. Unscrew the oil pump's mounting screws. Take the oil pump off its seat and remove from the crankshaft. Remove the bottom washer.

  • 5

    Disassemble the oil pump. Knock out the spring pin on the bottom with a punch. Pull the bottom control bolt from its hole and remove the O-rings. Pull the end plug off housing and remove the pump piston, spring and washer.

Read more: How to Repair the Oiler on a Stihl Chainsaw '

Posted on Mar 20, 2011


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