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Mazda RX7 Headers

Reasons behind Defective Mazda Rx7 Headers

Looking for a performance upgrade? Equipping your Mazda Rx7 with a set of headers provides several benefits for your auto. Some of the benefits include dampening of exhaust sound and increasing the efficiency of the muffler and catalytic converter. If you think the headers on your Mazda Rx7 are no longer providing the benefits they are supposed to give, then better prepare for troubleshooting. Listed below are just some of the common problems encountered with defective Mazda Rx7 headers and the reasons behind them:

Faded and dingy headers

No part is immune to wear and tear, so as time passes, you might find your auto's headers to look faded and dingy. This happens because the part is constantly exposed to heat coming from the oily engine bay. For diagnosis, a simple visual inspection should be enough to detect faded headers. In other instances, faded headers may be the result of using low-quality paint. You see, using high-temperature header paint on your car's headers will help preserve your vehicle's original look.

Presence of rust

Exhaust pipes and headers are made of iron. Combine this setting with constant exposure to exhaust gases and heat, and you have the perfect recipe for rust. This is even more prominent if you regularly drive your vehicle in places with wet climates or during the rainy season. Other header types rust because of poor coating, which is usually just painted outside. When the surface of the header is not coated with anti-rust material, rust spots can develop from inside and spread outwards.

Rusting header bolts

When the headers rust, there is also a risk for the header bolts to get corroded. When this happens, it will get stuck and make it hard for you to reach the exhaust manifolds and headers. Luckily, corroded bolts can be spotted easily through visual inspection.

Leaking headers

Leaking headers are easily detected because of the loud rumbling noises they produce and the unburned fuel they emit. Simply check for a large graphite gasket or a metal ball and socket-type flange between the manifold and the header pipe and inspect if there are signs of leakages. You can easily tell if they are defective if there's carbon buildup or discoloration.

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  • Easy Ways in Keeping Your Mazda Rx7 Headers in Good Condition

    Transporting engine exhaust gases and dampening exhaust gas sound is made possible with a set of fully functional headers. These headers are crafted from durable steel tubing, which are attached to the sides of the auto's engine. But, even with specially crafted and solid tubings, the Mazda Rx7 headers are still prone to wear and tear. In fact, faulty parts may result to an inefficient exhaust system, which then causes a decrease in engine performance. If you wish to extend the headers' service life but you have no idea how to perform maintenance, then you are in luck. Here are some tips on how you can keep your Mazda Rx7 headers in good condition.

    Refrain from driving your auto through high water.

    Driving your Mazda Rx7 in the rain should not be a problem, but when you drive your auto through a high puddle of water, you pose a threat to your car's headers. You see, you can get the headers wet, and once this happens, moisture can reach the exhaust system. You might soon find rust and signs of corrosion that will decrease the header's service life. So to avoid premature wear and tear, resist the urge to drive through puddles of water, even if it looks fun.

    Detach the headers and clean signs of dirt and debris.

    Removing the headers should not be a big problem because all you have to do is detach a few bolts. You may also look at your service manual for additional tips. Once the headers are removed, prepare a degreaser to clean excess debris, dirt, or oil from the headers. Afterwards, do not forget to dry the headers thoroughly for optimum header gains.

    Use a wire brush to remove header rust.

    Overtime, rust can build up inside and outside the header tubings. To keep these pesky signs of corrosion at bay, use a rust remover and wire brush to wipe the wearing spots.

    Tighten the header bolts.

    To maintain an even seating for the headers and prevent the bolts to become loose, allot time for keeping the header bolts tight. In fact, there are several ways to perform this tightening procedure. You can use a special locking bolt from a speed shop, an inside serrated washer, or through the use of a Loctite. Luckily, these tools are available in your local auto supply store.