B3 285 0 0 0 0 G J3 j v t 1 11 i 2 wz I l 0 0 y 0 3 1 fg qi 1 w 2 6 f EQ wi 6 3 r 3 I 1 6 I as 286 1976 81 EMISSION CONTROL DEVICES I 1 4 075 swnrcu rcs 2 698 3938481 2 2 410 SWITCH Thermo Vac 1238524 V 3 2 410 SWITCH Spark Cont Vac 460409 4 2 410 SWITCH Thermo Vac 3030875 5 3 640 SWITCH Exh Ht Vlv Actr Vac Cont 3031386 6 E3 278 Enrmnc 1 Im Manu vac 473381 7 3 278 FITTING lnt Manif Vac 492697 V 8 3 278 FITTING Int l lanif Vac 355786 9 3 278 FITTING carb Flr 1249174 10 3 670 VALVE A R Inj Vac Delay 1256500 11 3 670 VALVE Vac Delay 1257769 3 670 VALVE Vac Delay 1257770 3 670 VALVE Vac Delay 1260778 12 3 670 VALVE EFE EGR Thermal Vac 3039491 For specific model application usage and part number identification on typical views refer to the individual parts catalog groups These illustrations are representativeof the actual service parts No scale or size relationship is intended A WAREHOUS N G AND DlSTR B UT ON DIVISION or GENERAL MOTORS CORPORATION BU CK 41A I REV 2 5 81 3 135 3 000 GROUP