2 I GM04 261 I W Q 050286 3 4 w xg 0 9 7 1 9 A at A 2 IX bt 10 I I Q C K 0 11 L 1 20 Q 9 1 19 I J 16 17 9 W K 18 1 dl Qf 15 I I K U K Qi I DM6043G118 I V A GM04 261 S 1987 89 J BRAKE CYLINDER MASTER COMPACT MORAINE 1 4 651 sENsoR Fluid Leve 1 3 18012741 10 N s REsERvo R M CyI 1 3 E 2 L N S CAP Prop VIv 1 4 11 N S O RING Resvr to Body 1 3 4 3 N S O RING Prop VIv Cap 1 4 12 N S O RING Resvr to Body 1 3 4 S 4 N S SPRING Prop Vlv Pstn 1 13 N S RETAINER Pstn 1 2 5 4 652 PISTON M Cyl Prop V v 1 18011037 14 N S PISTON Primary 1 2 i 6 N S SEAL Prop VIv 1 4 15 N S SEAL Secondary 1 2 T 7 4 651 COVER M Cyl Resvr 1 18013963 1 6 N S RETAINER Spring 1 2 8 4 651 DIAPHRAGM M Cyl Resvr 17 N S SEAL PrImary 1 2 1 18014091 18 4 653 PISTON Secondary 1 18012626 9 N S PIN Spring 1 3 4 19 N S SPRING Secd Pstn 1 20 N s BODY M cyI 1 See Master Cylinder chart in Group 4 650 NOTE 1 Service Master Cylinder Group 4 650 lncls 1 thru 20 NOTE 2 Repair Kit Group 4 649 lncls 13 thru 17 I NOTE 3 Reservoir W Grommet Kit Group 4 651 lncls 1 9 10 1 1 12 NOTE 4 Repair Kit Proportioner Valve Group 4 652 lncls 2 3 6 9 1 1 12 i 1989 GENERAL MOTORS SERVICE PARTS OPERATIONS BUICK 44J 10 89 4 65 I 4 000 GROUP