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Genuine Buick Century Secondary Air Injection Pump
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3 Secondary Air Injection Pumps found
Buick Century Pump Assembly, Secondary Air Injection
Part Number: 12568241$175.32 MSRP: $364.04You Save: $188.72 (52%)Ships in 1-2 Business Days
Buick Century Secondary Air Injection Pump
Whenever there is consume of fuel in a car, there is always produce of Hydrocarbons (HC) and Carbon Monoxide (CO) among other emitters, and in order to minimize their production in Buick Century vehicles, there is this Secondary Air Injection Pump in the Air Injection Reactor (AIR) system which just blows fresh air into the exhaust system to increase the rate of oxidation of unburned fuel. This system generally comprises of an electric or belt-driven air pump, air control valve and those check valves which help to regulate the air flow depending on the engine temperature and other conditions of operation. This Secondary Air Injection Pump is used in Buick Century models to inject pressurized air into the exhaust ports during engine warm-up then into the catalytic converter at the optimum temperature is attained. This approach benefits in reducing emissions during some phases of the engine operation that is vital for an efficient operation. Further, there are also some safety measure like diverter valves as well as one-way check valves in order to avoid back fire and to protect the pump from exhaust gas. Altogether, the Secondary Air Injection Pump is crucial for emissions regulations and better fuel economy in Buick Century automobiles.
Each OEM Buick Century Secondary Air Injection Pump we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.
Buick Century Secondary Air Injection Pump Parts Questions & Experts Answers
- Q: What Are the Maintenance and Repair Procedures for Secondary Air Injection Pump on Buick Century?A: AIR system used in models from 1975 to 1980 pumps compressed air into the exhaust system around the exhaust valves so as to help in burning the unburned exhaust gases; it comprises of air injection pump/hoses/valves/tubes directing the air to the exhaust manifolds. Adjustments as applied to carburetors and distributors are uniquely different for AIR engines and these components are not interchangeable with typical engines. A alternates between closing off the air entering the engine to stop backfiring when manifold vacuum rises and uses a diverter value at cruising to channel air through the pump muffler and expels it by a relief valve at high rpms. Check valves are used in the system to prevent exhaust gases from entering the pump, and the AIR system used in the 231 V6 engines has some differences in this aspect. The efficiency of the system depends on the idle speed, ignition timing and dwell, which must be checked from time to time and the hoses and fitting must be checked for wear and tightness and the drive belt for wear and tension every one year or every 12,000miles. As for access to the air pump: disconnect the air hoses, secure the pump pulley, loosen the mounting bracket bolt, remove the drive belt, unbolt the pump mounting bolts and then remove the pump; installation is the reverse of removal. Subsequently, for the diverter valve, the vacuum sensing line and other hoses need to be disconnected, and then the valve is unbolted from the connection, the original gasket must be replaced with a new one and then nuts and bolts must be tightened to around 85 INCH LBS.
