If your Chevy car engine is running without a muffler, you know what a huge difference a muffler can make to the noise level. Also known as a "backbox" or "secondary muffler", a muffler is a part of an exhaust system. It is usually located near the rear of a car. The muffler is designed to decrease the volume of the exhaust. The body of the muffler is constructed in three layers: two thin layers of metal with a thicker, slightly insulated layer between them. This allows the body of the muffler to absorb some of the pressure pulses. Also, the inlet and outlet pipes going into the main chamber are perforated with holes. This allows thousands of tiny pressure pulses to bounce around in the main chamber, canceling each other out to some extent in addition to being absorbed by the muffler's housing.
There are other features inside the muffler that help it reduce the sound level in different ways. A basic muffler consists of a series of metal plates or tubes with multiple holes. The holes put pressure against the exhaust flow and decreases the noise. Chambers exist between the metal plates to ensure the flow of the exhaust. A high-performance muffler contains a single, large pipe with holes along the side. This reduces the sound a little, but it rarely puts pressure on the exhaust and allows it to flow freely.
Chevy mufflers use some pretty neat technology to cancel out the noise. A chamber called a resonator is attached to the first chamber by a hole. The resonator contains a precise volume of air and has a specific length that is calculated to produce a wave that cancels out a certain frequency of sound. In reality, the sound coming from the engine is a mixture of many different frequencies of sound, and since many of those frequencies depend on the engine speed, the sound is almost never at exactly the right frequency for this to happen. The resonator is intended to work best in the frequency range where the engine makes the most noise; but even if the frequency is not exactly what the resonator was tuned for, it will still produce some destructive interference.
Another one important characteristic of Chevy mufflers is how much backpressure they produce. The muffler is a key to the performance of the car because the more muffler decreases the sound, the more backpressure it creates on exhaust flow. And increased backpressure means decreased performance.
Your Chevy car deserves the best Chevy muffler. You can choose from the sites in the internet the best Chevy muffler you are looking for. From the basic Chevy mufflers to the high performance Chevy mufflers, it's all there.
How to Repair your Chevrolet Muffler in Six Easy Steps
If your vehicle has been making more noise than it should, especially if it's coming from the rear end of your vehicle, then there might be something wrong with your muffler. Your muffler is responsible for reducing the amount of noise emitted by the exhaust of an internal combustion engine. Over time, this part usually develops leaks or holes due to excessive wear. When this part wears out, it is important that you fix it immediately to avoid worse problems. A worn-out muffler can fall off on the road while you are driving. Don't worry; you can always repair your Chevrolet muffler in five easy steps and without hurting your pocket.
Difficulty level: Easy
What you'll need:
- Steel wool
- Aluminum tape
- Steel can
- Pair of scissors
- Stainless steel hose clamps
Step 1:Clean the area around the hole or crack in your Chevrolet muffler using a cloth. Remove any dirt or rust that has been covering the part. This is to ensure a good seal around the affected area.
Step 2:Start your engine to pre-heat your vehicle, especially if it is below 70F or 21C, until it is warm yet can still be touched. You don't have to heat up the car if the temperature is already above 70F or 21C.
Step 3:Cover the hole or leak with a steel wool. It will isolate and cover any leak or hole perfectly. Make sure that the whole area is covered.
Step 4:Secure the steel wool by fastening several layers of aluminum tape until it is about an inch thick. You need to use aluminum tape to ensure that it will stay even if it burns up, unlike any other adhesive. However, expect that the tape will become brittle over time due to the heat.
Step 5:Cut the steel can open using a pair of scissors. Use it to cover the aluminum tape. It is important to note that you cannot use an aluminum sheet folded around the pipe as it will blow after a couple of weeks due to exposure to extreme heat.
Step 6:Finally, fasten the steel can using two stainless steel hose clamps. Tighten it well to ensure that it won't fall off. If necessary, secure each end of the repair with wire or tape. Afterwards, drive or idle your car for at least 20 minutes until the heat can fuse the tape into your tailpipe.
Just like that, your Chevrolet muffler is as good as new. Don't worry about having to fix it again in a couple of months; this repair has been proven and tested to last for several years. This repair will take you at least 30 minutes to an hour to get it done. Using this technique will only cost you a little over $10 for the steel wool. If this doesn't work, you may opt to apply muffler repair putty to the damaged area. Just make sure to give it time to stick first, maybe a good 20 minutes, before you start your vehicle.