2. A Systems Approach Automotive Technology PowerPoint® Presentation
Prepared by
René Green

3. Chapter 8
Short Blocks

4. Short Blocks Chapter Overview
This chapter discusses the engine's cylinder block, crankshaft, crankshaft bearings, connecting rods, pistons and rings, oil gallery, core plugs, flywheel, and harmonic balancer, focusing attention on the design and function of these essential parts of gasoline engines.

5. Short Blocks Chapter Objectives
List the parts that make up a short block and briefly describe their operation.
Describe the major service and rebuilding procedures performed on cylinder blocks.
Explain crankshaft construction, inspection, and rebuilding procedures.
Explain the function of engine bearings, flywheels, and harmonic balancers.

6. Short Blocks
Explain the common service and assembly techniques used in connecting rod and piston servicing.
Explain the purpose and design of the different types of piston rings.
Describe the procedure for installing pistons in their cylinder bores.

7. Short Blocks Cylinder Block Cylinder Block Reconditioning
Lubricating and Cooling
Core Plugs
Cylinder Sleeves
Cylinder Block Reconditioning
Deck Flatness
Cylinder Walls

8. Short Blocks
Cylinder Bore Inspection
Taper
Out of roundness

9. Short Blocks Cylinder Bore Surface Finish Installing Core Plugs
Cylinder deglazing
Cylinder boring
Cylinder honing
Installing Core Plugs
Disc or dished-type
Cup-type
Expansion-type

10. Short Blocks
Crankshaft
Vibration damper
Flywheel
Balance shafts

11. Short Blocks Crankshaft Inspection and Rebuilding
Checking Crankshaft Saddle Alignment

12. Short Blocks Crankshaft Inspection and Rebuilding
Checking Crankshaft Straightness
Checking Crankshaft Clearance and End Play

13. Short Blocks
Flywheel Inspection
Crankshaft Bearings

14. Short Blocks Bearing Spread Bearing Crush Bearing Locating Devices
Oil Grooves
Oil Holes
Oil Clearance
Bearing Failure and Inspection

15. Short Blocks Installing Main Bearings and Crankshaft
Plastigage
Crankshaft End Play
Connecting Rod
Pistons and Piston Rings
Pistons
Head or dome
Ring lands
Piston pin

16. Short Blocks
Piston Rings
Compression Rings
Oil Control Rings

17. Short Blocks
Installing Pistons and Connecting Rods