GMC 1990 Light Truck Repair Manual page 374

A GENERAL ENGINE MECHANICAL
6 - 2 2
5 ■
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1. C ylinder Bore Gage
2. Ring Expander
3. Piston Pin Replacer Set
4. Piston Pin Clip Installer
5. Cam shaft Bearing Replacer
6. Hydraulic Lifter Leakdown Tester
7. Wire Brush
8. Valve Guide Cleaning Tool
9. Dial Indicator
10. Valve Spring Tester
11. Intake Opening Cover
12. 0.13 mm (0.005-inch) Oversize Valve Guide Reamer (2.5 L Engines)
13. Valve Guide Reamer Set (All Engines Except 6.2 L and 7.4 L). C onsists of:
— J-5830-1: 0.08 mm (0.003-inch) oversize
— J-5830-2: 0.38 mm (0.015-inch) oversize
— J-5830-3: 0.76 mm (0.030-inch) oversize
14. Valve Guide Reamer Set (6.2 L and 7.4 L Engines). C onsists of:
— J-7049-1: 0.08 mm (0.003-inch) oversize
— J-7049-2: 0.38 mm (0.015-inch) oversize
— J-7049-3: 0.76 mm (0.030-inch) oversize
SPECIAL TOOLS
J 8087
J 25220
J 24086
J 29134-A
J 6098 01 10
11
12
13
14
J 5790
J 8089
J 8101
J 8001
J 8056
J 29664
J 6621
J 5830-02
J 7049
F-04508