AIR INJECTOR REACTOR SYSTEM 6T 2 The Air Injector Reactor System fig 1 used on all exhaust contamination Corvair engines in California except the turbocharged The mixture control valves fig 3 when triggered by engine and engines in vehicles equipped with air condi a sharp increase in manifold vacuum supplies the intake tioning consists of the air injection pump With neces manifold with fresh tntered air to ieen out the fuel air sary brackets and drive attachments air injection tubes mixture and prevent exhaust system backfire 0119 for each cylinder two mixture control valves two The cheek valves prevent exhaust gases from entering check valves a pressure relief valve and tubes and and damaging the air injection pump if for any reason hoses necessary to connect the various components such as drive belt failure the pump becomes inopera tive Under normal operating conditions air pressure C I bl1I LOI S Ellld dlSiLI lbl1tO1 S Of engines with th Air from the pump is sufficient to prevent exhaust gas from Injection Reactor System are designed particularly for entering the pump these engines therefore they should not be interchanged The pressure relief valve located in the left tube with or replaced by a carburetor or distributor designed relieves any excess pressure of the air injection pump for an engine without the Air Injection Reactor System While the system will result in exhaust emission well The air injection pump fig 2 picks up fresh filtered below the California requirements when it is properly air from the air cleaner compresses the air and injects installed and maintained it will not provide the desired it though the tubes and injection tubes into the exhaust reduction in exhaust emissions if some of the engine system in the area of the exhaust valves The fresh components malfunction air ignites and burns the unburned portion of the ex Because of the relationship between Engine Tune Up haust gases in the exhaust system thus minimizing and Unburned Exhaust Gases the condition of Engine Tune Up should be checked whenever the Air Injection PUMP Reactor System seems to be malfunctioning Particular COVER care should be taken in checking items that affect fuel j lgG NG air ratio Such as the crankcase ventilation system the I it carburetor and the carburetor air cleaner Ski S I iiirtr i i A j I A A vA v5 IN AIR INLET ifti I GPEN V vAivE IN AA AA A A POSITION j A CLOSED I E c I i F e E POSITION i P Yi S j Y I I I r si I II S Si K I r L in AIR OUTLET R iifr i i ii i t st er etI i i ir i TT S TSSS ZIS rS f SIGNAL LINE 0 CONNECTION A i SII I SS I i I DRIVE V Z E HUB I I I I OPEN CHECK j A I I DIAPHRAGM F VALVE SISI S y POSITIONS I IISS I QLQSED PRESSURE INTAKE OUTLETS TUBE Fig 2 Air Injection Pump Fig 3 Mixture Control Vdive DRIVE BELT new belt using a strand tension gauge and tighten idler pulley bolts Inspection CAUTION Do not pry on the pump housing Inspect dmv belt for W ar cracks Or detemoratmn Distortion of the housing will result in extensive and r place tf requlred damage to the Air Injection Pump Inspect belt tension and adjust if required Replacement Adjustment Loosen idler pulley bolts then swing idler pulley Loosen idler pulley bolts then move idler pulley until drive belt may be removed until belt is tight 55 ut 5 lb used belt or 75r 5 lb Install a new drive belt and adjust as outlined above CORVAIR SHOP MANUAL SUPPLEMENT