AIR INJECTOR REACTOR SYSTEM 6T 2 The Air Injector Reactor A I R System fig 1 con The mixture control valves fig 3 when triggered by sists of the air injection pump with necessary brackets a sharp increase in manifold vacuum supplies the intake and drive attachments air injection tubes one for each manifold with fresh filtered air to lean out the fuel air cylinder two mixture control valves two check valves mixture and prevent exhaust system backfire a pressure relief valve and tubes and hoses necessary to The check valves prevent exhaust gases from entering connect the various components and damaging the air injection pump as back flow can Carburetors and distributors for engines with the Sys occur even under normal operating conditions tem are designed particularly for these engines there The pressure relief valve located in the left tube re fore they should not be interchanged with or replaced by a lieves any excess pressure of the air injection pump carburetor or distributor designed for an engine without When properly installed and maintained the A I R the A I R System System will keep exhaust emissions well below require The air injection pump fig 2 picks up fresh filtered ments However if any A I R component or any engine air from the air cleaner compresses the air and injects component that operates in conjunction with the A i R it through the tubes and injection tubes into the exhaust System should malfunction the exhaust emissions might valves The freshair ignites and burns the unburned por be increased tion of the exhaust gases in the exhaust system thus mini Because of the relationship between Engine Tune Up mizing exhaust contamination and Unburned Exhaust Gases the condition of Engine Tune Up should be checked whenever the A I R System seems to be malfunctioning Particular care should be PUMP taken in checking items that affect fuel air ratio such as TPTUMP M n W W COVER the crankcase ventilation system the carburetor and the OUSING 4 carburetor air cleaner 5 S ii tss t fi I VALVE IN AIR INLET I OPEN V VALVE IN g j 3 TT T 1 A T POSITION T 2 CLOSED T T I jjp I K I I L A i Y F ife if S i i i fi i i is ii s s i SIGNAL LINE g CONNECTION 0 eu e e T I Z DRIVE V Mew V hA it HUB I OPEN CHECK TT j i i e L DIAPHRAGM V ALVE it POSITIONS ELOSE PRESSURE I T E D OUTLETS TUBE Fig 2 Air Injection Pump Fig 3 Mixture Control Valve DRIVE BELT new belt using a strand tension gauge and tighten Tnspedion idler pulley bolts Inspect drive belt for wear cracks or deterioration CAUTION D0 not pry on the pump housing and replace if required Distortion of the housing will result in extensive Inspect belt tension and adjust if below 50 lb using a damage to the Air Injection Pump strand tension gauge Replacement Adjustment Loosen idler pulley bolts then swing idler pulley Loosen idler pulley bolts then move idler pulley until drive belt may be pgmOv d until belt is tight 55 T 5 lb used belt or 75 T 5 lb Install a new drive belt and adjust as outlined above CORVAIR SHOP MANUAL SUPPLEMENT