DescriptionThis video provides step-by-step repair instructions for replacing the muffler on a Cub Cadet snowblower. The most common reason for replacing the muffler is when the snowblower engine is unusually loud.
All of the information for this muffler replacement video is applicable to the following brands:
MTD, Yard Machines, Craftsman, Cub Cadet, Yard-Man, Troy-Bilt, Huskee
Tools used: 10mm socket, 3/8 inch socket, ½ inch socket, ¾ inch socket
Step-By-Step Instructions1
Before you replace the muffler on your snowblower first make sure the engine and muffler have cooled.
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Next, remove the wire and boot from the spark plug to prevent the engine from accidentally starting.
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To access all of the muffler cover mounting bolts, you will first need to move the chute gear box support bracket out of the way.
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To do this, remove the retaining clip securing the chute control rod and pull the rod free.
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Remove the retaining clip to release the support bracket pin.
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Remove the wing nut from the center gear box mounting bolt.
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Lift the gear box off of the support bracket and set the gear box and chute assembly aside.
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Next, use a 3/8th inch socket to remove the bolts securing the belt cover.
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Now release the drive belt idler pulley tension spring.
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Use a half-inch socket to remove the upper two mounting bolts securing the gear box support bracket.
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Use a three-quarter inch socket to remove the lower bolt.
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You can now remove the support bracket.
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Use a 10mm socket or wrench to remove all of the mounting bolts securing the muffler cover.
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Use the half-inch socket to help unthread the mounting nuts securing the muffler itself.
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Remove the old muffler.
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Before you install the new muffler we recommend you replace the muffler gasket.
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Now align the new muffler on the cylinder head and rethread the mounting nuts to secure.
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Realign the muffler cover.
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Thread and tighten the bolts to secure.
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Now reposition the chute gear box support bracket and replace the bolts.
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Reset the tension spring on the lower bolt.
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Replace the belt cover.
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Rethread the bolts and tighten.
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Reposition the chute assembly on the chute adapter. as you realign the gear box on the support bracket.
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Confirm that the center mounting bolt is in place in the gear box housing then thread the wing nut on and tighten.
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Reinsert the support bracket pin and secure it with the retaining clip.
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Confirm that the holes in the gear box coupler are facing straight up with the chute facing forward and that the chute control lever is at the “one o’clock” position.
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Now insert the rounded end of the chute control rod into the gear box coupler and the hex end into the control coupler.
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Secure the rod with the retaining clip.
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Confirm that the chute has a full range of movement reattach the spark plug wire and boot and your snowblower should be ready for use.