4 CYLINDER ENGINE 0 333 ARM GUIDE THRUST PIECE Engine Valve Rocker Arm Con t M 90108699 8 5 15 GUIDE VLV STD UNFINISHED 6 6MM I D 87 89 N 2 O MUST BE REAMED AFTER ASM OF CYL HD FOLLOWING MANUAL PROCEDURES PGO 7 16 87 89 N 2 0M I 90108700 AR 5 15 GUIDE VLV O S UNF NISHED 6 6MM I D MUST BE REAMED AFTER ASM OF CYL HD FOLLOWING MANUAL PROCEDURES 87 89 N 2 0M 90076745 8 2 90 THRUST PIECE VLV PGO 7 11 0 386 BUSHING COVER DEFLECTOR HOUSlNG SCREEN Engine Camshaft Valve 87 89 N 2 0M 94653886 2 1 05 BUSHING HSG VENT 85 91 N 2 5U L68 10030230 1 1 55 COVER CM SHF RR OPG PGO 41 34 85 88 N 2 5U e 10044306 1 33 25 COVER W BFL VLV RKR ARM PGO 45 37 87 89 N 2 0M 10106053 1 44 00 COVER CM SHFT SUPT COMPL PGO 3 1 88 91 N 2 3D LD2 22539983 1 4 50 COVER EXH CM SHF CAM HOUSING ASM END CVR PGO 21 23 89 91 N 2 5U L68 10101824 1 33 25 COVER VLV RKR W BFL WHEN USING IN PLACE OF10101423 10124688 RKR GASKET MUST ALSO BE USED 89 91 N 2 3A LGO 22539983 1 4 50 COVER EXH CM SHF CAM HOUSING ASM END CVR PGO 21 23 87 89 N 2 0M 10018763 1 14 30 DEFLECTOR OIL SEP FRT PGO 3 5 87 89 N 2 0M 52285383 1 14 30 DEFLECTOR OIL SEP RR MID ENG PGO 3 3 88 89 N 2 3D 22545202 1 339 00 HOUSING EXH CM SHF W CVR PGO 21 3 88 89 N 2 3D 22545204 1 339 00 HOUSING INT CM SHFT W CVR PGO 21 3 89 N 2 3A 22545202 1 339 00 HOUSING EXH CM SHF W CVR PGO 21 3 89 91 N 2 3A LGO 24570137 1 339 00 HOUSING INTAKE CAMSHAFT PGO 33 3 90 91 N 2 3A LGO 24570136 1 339 00 HOUSING EXH CM SHF W CVR PGO 33 3 90 91 N 2 3D LD2 24570136 1 339 00 HOUSING EXH CM SHF W CVR PGO 33 3 90 91 N 2 3D LD2 24570137 1 339 00 HOUSING INT CM SHF W CVR PGO 33 3 87 89 N 2 0M 10018764 1 7 30 SCREEN OIL SEP ENG FRT TMG BELT END PGO 3 6 87 89 N 2 0M 90128374 1 7 30 SCREEN OIL SEP ENG RR DIST END PGO 3 2 0 413 PIN SHIELD Engine Camshaft Cover Housing 88 91 N 2 3D LD2 22531637 4 37 PIN CAM CARRIER CVRS TO CYL HD DOWEL 8 00X12 00 PGO 21 21 89 91 N 2 3A LGO 22531637 4 37 PIN CAM CARRIER CVRS TO CYL HD DOWEL 8 00X12 00 PGO 21 21 88 89 N 2 0M 10106008 1 1 50 SHIELD CM SHF SUPT CVR OIL SPH 0 423 GASKET Engine Camshaft Cover NOTE FOR 1987 2 5U GASKET USE RTV SEALANT 85 90 N 2 5U 10101791 1 N L GASKET VLV RKR ARM CVR 87 89 N 2 0M 52284853 1 N L GASKET CM SHF SUPT CVR PGO 3 10 88 91 N 2 3D LD2 22531199 1 97 GASKET EXH CM SHF CVR CAM HOUSING ASM CVR PGO 21 22 89 91 N 2 3A LGO 22531199 1 97 GASKET EXH CM SHF CVR CAM HOUSING ASM CVR PGO 21 22 91 N 2 5U L68 10124688 1 10 70 GASKET VLV RKR ARM CVR 0 426 ROD Engine Valve Push 85 86 N 2 5U 10028055 8 4 10 ROD PUSH PGO 45 35 87 91 N 2 5U L68 10040235 8 3 25 ROD PUSH PGO 53 45 0 429 BALL BOLT STUD Engine Valve Adjusting 85 91 N 2 5U 10008244 8 84 BALL RKR ARM PGO 45 33 85 86 N 2 5U 10031032 8 1 10 BOLT RKR ARM BALL PGO 45 34 87 88 N 2 5U 10040236 8 1 10 BOLT RKR ARM BALL PGO 53 14 89 91 N 2 5U L68 10044622 8 1 05 BOLT RKR ARM BALL PGO 53 14 85 91 N 2 5U L68 10044611 4 1 90 STUD W WA PUSH ROD POS 1 2 3 4 HEX W WA 6X1X18 5 6X1X14 75 18 OD 9 8 PC PGO 41 24 i 1991 GENERAL MOTORS SERVICE PARTS 0PERATIONS PONTIAC 22N T 0 333 0 429 0 16 2 91