Generac Power Systems 005055-1 user manual

Summary of the content on the page No. 1

GTH990
Engine Parts Manual
Model: 005055-1

Summary of the content on the page No. 2

GTH990 OHVI SERIES ENGINE Model 005055-1 34 37 36 35 77 38 76 39 34 22 40 32 44 33 46 3 41 75 55 21 12 74 13 10 42 29 25 28 27 3 30 11 26 23 15 16A 14 16B 43 31 24 16A 8 53 17 7 56 18 54 20 19 9 57 6 5 4 47 48 62 49 50 63 51 64 77 52 1 2 65 58 59 60 61 2 3

Summary of the content on the page No. 3

Model 005055-1 GTH990 OHVI SERIES ENGINE ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION 1 0C57290SRV 1 ASSEMBL Y, CRANKCASE HOUSING WITH 38 0C5305 1 TUBE, DIPSTICK SLEEVE 39 0C3027 1 O-RING, OIL CLR 3/8 X 1/2 2 0E9843 1 SEAL, 38 I.D. CRANKSHAFT FLYWHEEL 40 0E9842 1 SEAL, 42 I.D. CRANKSHAFT PTO SIDE SIDE 41 0C5731 1 ASSEMBLY, HOUSING COVER WITH 3 090388 3 SCREW, HHTT M6-1.0 X 12 YC SLEEVE 4 0C5372 1 AS

Summary of the content on the page No. 4

GTH990 OHVI SERIES ENGINE Model 005055-1 4 5 138 101 136 137 139 140 141 142 100 99 "D" 106 98 "B" "B" 112 "C" 99 193 93 94 168 92 143 111 90 91 105 96 97 149 103 148 104 95 144 147 106 114 "D" 102 115 113 110 116 148 118 118 109 135 146 107 194A 134 120 194B 133 TO #156 108 123 117 TO #165 132 121 119 131 122 124 130 TO #92 125 126 189 129 TO #1 TO #187 128 127 TO #156 98 194C "C" 150 152 190 137 99 TO #144 154 151 173 171 191 155 194D TO #187 167 170 188 169 156 TO #187 157 170 174 183 158 162

Summary of the content on the page No. 5

Model 005055-1 GTH990 OHVI SERIES ENGINE ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION 146 061906 2 SCREW, HHC M8-1.25 X 85 G8.8 90 0C9911 1 MANIFOLD, INTAKE HORIZONTAL 2-BARREL 91 0D4023 1 GASKET, MANIFOLD TO CARB GTH990 147 022145 1 WASHER, FLAT M8 92 0E9995 1 CARBURETOR, GTH990 148 022129 3 WASHER, LOCK M8-5/16 149 0F5467 1 NUT, HEX M8-1.25 YELLOW ZINC 93 0D4626 1 GASKET, AIRBOX TO SPCR/CARB GTH990 94

Summary of the content on the page No. 6

GTH990 OHVI SERIES ENGINE Model 005055-1 6 7 217 210 215 183(REF) 216 75 (REF) 74 (REF) 152(REF) 213 10 (REF) 214 183(REF) AIR CLEANER ASSEMBLY 200 (REF) 201 138(REF) 203 182(REF) 202 203A 208 MUFFLER 200 209 MOUNTING 206 210 211 205 92 (REF) 207 193 (REF) 212

Summary of the content on the page No. 7

Model 005055-1 GTH990 OHVI SERIES ENGINE ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION AIR CLEANER ASSEMBLY MUFFLER MOUNTING 200 0F7642 1 CLEANER, AIR WITH M8 MOUNTING BASE 213 0E8558 1 MUFFLER, GTH990/760 201 0E3557 1 FILTER, AIR PRIMARY DONALDSON 214 0E6708A 1 SUPPORT, MUFFLER W/LIFT EYE-RH 202 0E3656 1 FILTER, AIR SAFETY DONALDSON 215 0E6708B 1 SUPPORT, MUFFLER W/LIFT EYE-LH 203 0E0136A 1 HOOD, INLET DONALDSON

Summary of the content on the page No. 8

GTH990 OHVI SERIES ENGINE Model 005055-1  oil rEliEf KiT — 0d40150srv  HE ad assEMbl Y KiT - CYl #1 — PART NO. QTY. DESCRIPTION 0d8675asrv 0C3009 2 SPRING, OIL RELIEF PART NO. QTY. DESCRIPTION 0C3010 2 BALL, 1/2D OIL RELIEF 0C2229 1 VALVE, INTAKE 0C3011 2 COVER, OIL RELIEF 0C2976 6 SCREW, HHFC M8-1.25 X 65 0C2978 1 GASKET, CYLINDER HEAD 0C2979 1 GASKET, VALVE COVER  GEar CovEr KiT — 0d40160srv 0C3043 2 GASKET, INTAKE PORT 0C4138 2 GASKET, EXHAUST P