Monday, October 5, 2015

Determine Exhaust Leaks

Routinely look the exhaust process for failure.


Exhaust leaks are defective, and should never be ignored. Leaks can grant lethal carbon monoxide to enter the interior of the vehicle, and can in some instances incision engine get-up-and-go. Listening for exhaust leak locations can be challenging, due to the heat that is generated while the engine is running. Instead of enchanting that access, first step with a bloodless exhaust process inspection and Stop with the engine running to confirm your findings.


Instructions


1. Jack the vehicle up, lay jack stands under the frame and lower the vehicle. Commence an inspection by locating one muffler in unmarried exhaust systems, or two in dual exhaust systems. Contemplate the remove gap in the mufflers. This is a high rise failure point due to the acidic condensate (sulphur and damp) that drains at this mark. Scrutinize the tail cylinder and resonator for rust and corrosion very.


2. Movement forward to the catalytic converter site. There may be extra than one catalytic converter. Converters can fail due to incompatible gasoline, an overheated engine, excessive engine fueling, using the wrong motor oil or improper use of silicone sealers. Converters can rupture, causing exhaust leaks. Thoroughly inspect the converter inlet and outlet, the converter body and any flange gaskets that may be used. Signs of leakage are black soot or discoloration at the leak area.


3. Shine the flashlight into the exhaust manifold area. Look for excessive rust, black soot and dark blue discoloration caused by excess heat.4. Have an assistant start the vehicle and listen for the sputter of an exhaust leak. If it is coming from the manifold area, remove the lead off pipe for closer inspection. This is the most difficult area to inspect. In many cases a telescoping mirror can be used. Examine the lead off pipe and gasket, and where the exhaust manifold bolts to the head.


Determine if the leak is located at the lead off pipe flange, or is a bad gasket. If not, the leak is at the exhaust manifold, which must be removed for repair.