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Briggs and Stratton 675 Series Repair Muffler Replacement

Introduction

Follow these steps to remove the muffler from your Briggs and Stratton 675 engine. Once removed, a damaged muffler can be replaced or a dirty one cleaned. The muffler can become dirty or damaged over time. It is important to keep it clear of debris so that the exhaust coming from the engine can flow normally.

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  1. Briggs and Stratton 675 Series Repair Muffler Replacement, Muffler: étape 1, image 1 de 1

    • Make sure the engine is off and the spark plug wire is removed and away from the spark plug. If the engine has been running, make sure that the muffler has cooled down before beginning.

    • Use a socket wrench with a 1/4" hex bit or a 1/4" wrench to remove the three 13mm screws holding the outer flange.

    • Remove the flange.

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  2. Briggs and Stratton 675 Series Repair Muffler Replacement: étape 2, image 1 de 1

    • Use a pair of needle nose pliers to bend back the two metal tabs on either side of the remaining screws.

    • Be careful not to break off the tabs.

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  4. Briggs and Stratton 675 Series Repair Muffler Replacement: étape 3, image 1 de 1

    • Use a socket wrench with a 7/16" hex bit or 7/16" wrench to remove the two remaining 75mm screws.

    • Make sure not to lose the metal bar linking the two screws.

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  5. Briggs and Stratton 675 Series Repair Muffler Replacement: étape 4, image 1 de 2 Briggs and Stratton 675 Series Repair Muffler Replacement: étape 4, image 2 de 2

    • Remove the muffler from the engine block by simply pulling it away.

    • After removing the muffler, make sure to note the configuration of the washer assembly that sits between the muffler and the engine block (shown in photo 2). This piece will be free to fall out once the muffler is removed. Do not lose this piece.

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    My 675 engine is ~12 years old and it has a vertical metal piece attached to the muffler going up ~3 inches. I can’t see what it attaches to. I can feel a thin metal bar under the cowling but I don’t know what it does. Help!

    Bob - Réponse

Conclusion

To reassemble your device, follow these instructions in reverse order.

Une autre personne a terminé cette réparation.

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2 commentaires

When I removed the muffler from the engine block by simply pulling it away, the thermic regulator fell out and I don't see how/where to fix it again.

Thanks for any help !!!

yvessr - Réponse

Obtain the parts diagram for your model. Use the drawing as a guide for re-installation.

Wear and use safety glasses and ear protection. Observe all safety precautions. Alfred Schrader 2024

alfredschrader - Réponse

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