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| Replacing Your Muffler |
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Replacing a muffler is not a difficult job, especially if you are prepared with the proper equipment.
Not all of us have a garage full of tools, so with the help of the following
simple tools the job can be successfully completed. Remember to inspect the
system completely. Have all the necessary tools and replacement parts ready. Now
let's go through the steps:
- Raise car and use jack stands to support car. Be sure car is secure and will not roll.
- Soak muffler clamp nuts, clamp fittings and joints with penetration oil.
Then remove the muffler clamps (if welded, cut both ends of muffler with a
hacksaw).
- If muffler is not welded use a chisel to cut muffler off of pipes. Do this
by cutting the muffler inlet and outlet tubes on both sides. Once the inlet and
outlet tubes are free remove muffler.
- Inspect pipe ends to be sure they are reusable. Slight sanding might be
necessary. Coat new muffler end pipes with sealing compound to insure a tight
seal.
- Insert muffler onto one pipe and then the other. Some twisting and prying is
sometimes necessary. (Be sure inlet end of muffler is pointing toward front of
car.)
- Position muffler clamps over muffler end connectors. Adjust pipes so that
they clear all parts of car, then tighten clamps. (It is always best to use new
clamps.) Use pipe connectors if changes in length are needed.
- Shake reassembled exhaust system to check fit and clearance of parts. Start
engine and check for leaks, Apply sealer to joints if necessary.
TIPS Remember the exhaust system has two important jobs to perform:
Removing dangerous engine
gases and reducing engine noise. Even though you might not mind the noise be
sure there are no gas leaks. Be sure to check for worn hangers. A muffler left
banging around will not last long. Always replace muffler clamps. It's a good
investment. Be sure to use safety glasses. There are a lot of particles that
fall off an exhaust system and can get into your eyes. Most mufflers have an
inlet and outlet end. Be sure they are pointed in the right direction.
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