AIR INJECTOR REACTOR SYSTEM 6T 4 DRIVE PULLEY NOTE Use anti seize compound on threads of the tube to exhaust manifold connections Replacement Remove drive belt as outlined above then replace drive pulley CHECK VALVE Install and adjust drive belt as outlined above lneeedien The check valve should be inspected whenever the PUMP PULLEY pump outlet tube is disconnected from the check Replacement valve or whenever check valve failure is suspected Hold pump pulley from turning by compressing drive A pump that had become inoperative and had shown belt then loosen pump pulley bolts indications of having exhaust gases in the pump Remove drive belt as outlined above then remove would indicate check valve failure pump pulley Orally blow through the check valve toward tube Install pump pulley with retaining bolts hand tight then attempt to suck back through check valve Install and adjust drive belt as outlined above Flow should only be in one direction toward the Hold pump pulley from turning by compressing drive tube belt then torque pump pulley bolts to 25 ft lbs Repleeemem T Recheck drive belt tension and adjust if r quir d Disconnect pump outlet tube at check valve Remove check valve from tube being careful not to bend or TUBE AND HOSE twist tube Inspection Fig 4 Inspect all hoses for deterioration or holes MIXTURE CONTROL VALVE Inspect all tubes for cracks or holes Check all hose and tube connections Inspedwn f 11 1 H Check an me and me routing Mem rtnc 6 my 2f g f IiI2 IZ2 2iiL I f1 iS i i il e gmizikwiiaguspected On the pressure Side Of the SyS cause malfunctioning of the mixture control valve tem or an tubes have been disconnected on the res sure side the connections should be checkeg for D1S t m Valve Inlet hose at pump leaks with a soapy water solution With the pump NOTE On Corvair engines remove valve from running bubbles will form if a leak exists air cleaner crossover tube Replacement Leaking valve will be indicated by an air gushing noise To replace any hose and or tube note routing then comingfrom the hose or valve opening Corvair remove hose s and or 1 ube s 35 requj ed Place palm of hand over hose or valve little or no A T N T h S S Of the MR S Stem are EE3L EuiIg IZi11 L i tLi iZi 2Z1 d S aspecial material to withstand high temperature fective and Should be replaced Open and close throttle rapidly Air noise should be NOTE The left and right pump Outlet tubes evidentandthengraduallydecrease Time delay from are retained to the pump housing with a Clamp valve open to close should be as shown below Check and use O ring Seals for proper valve usage If strong pull is not felt im mediately or air noise is not present valve is not Install new hose s and or tube s routing them as functioning properly and should be replaced when removed A noisy valve should be replaced Tighten all connections Repleeemem Disconnect the signal line and air outlet hoses then remove the valve from the air cleaner grommet Install new valve in air cleaner grommet and con 3 nect air outlet and signal line hoses CAUTION Mixture control valves though sim A A ilar in appearance are designed to meet the particular requirements of various engines therefore be sure to install the correct valve BI AIR INLET AIR INJECTION TUBE AIR INJECTION TUBE Ins ectnon Fi 5 op There ig ncl periodic service or inspection for the Iz Qfjjjjjjjjjjj air injection tubes yet whenever the exhaust mani folds are removed inspect the air injection tubes B B A A for carbon build up and warped or burnt tubes Remove any carbon build up with a wire brush Warped or burnt tubes require exhaust manifold Fig 5 AIr Injection Tube replacement CORVAIR SHOP MANUAL SUPPLEMENT