Haynes, do it yourself experts who provide advice and resources on fixing real engines, provide nearly everything needed to construct the Visible Internal Combustion Engine model. All of the major engine components are packaged as independent pieces or attached to a number of sprues. No glue is required for assembly, and this model engine kit even includes a magnetic screwdriver that helps ensure none of the tiny screws are lost during the assembly process. Once assembled, the battery pack brings the engine roaring to life. It makes an engine ignition noise before the pistons start pumping and the flywheel starts spinning. Each spark plug even flashes, but it is up to the mechanic who assembles this model engine kit to adjust the ignition timing to make sure the engine fires up properly when the start button is pressed.

Most of the instruction manual is broken into fifty illustrated steps with detailed explanations on how to ensure a perfect fit of each moving and stationary piece in the Internal Combustion Engine model. An appendix at the end of the instruction manual provides valuable insights and information about engine maintenance and basic principles of how engines work. Illustrations show the four-stroke cycle of an engine with a detailed explanation of the intake, compression, power, and exhaust strokes. Pages of answers to frequently asked questions explain everything from ignition systems and fuel injection to why engines need oil and why cooling systems are necessary. Maintenance information is also provided for keeping cars healthy, while there is also an extensive glossary of basic engine terms to help those building this model engine kit to better understand the workings of real automotive engines.

The Haynes Visible Internal Combustion Engine Kit has the following realistic engine parts and accessories:

• Phillips Head Screwdriver (Magnetic)
• Battery Operated Moving Parts and Lights
• Rocking Valves, Firing Spark Plugs, and Pistons that Drive the Crankshaft
• 2 Shafts of Different Lengths
• 4 Exhaust Valves and Intake Valves
• Intake Manifold and Exhaust Manifold
• 8 Valve Stems
• 4 Piston Pins and 8 Piston Halves
• 4 Connecting Rod Keepers and Connecting Rods
• 8 Timing Cams and Rocker Arms
• 1 Crankshaft and Crankshaft Pulley
• 1 Fan and Fan Pulley
• Engine Mounting Stand
• 5 Bearings
• Clutch Housing
• Oil Pan
• Lower Crankcase
• Rocker Arm Cover
• Upper Cylinder Head and Lower Cylinder Head
• Timing Belt, Timing Wheel, and Timing Gear
• Belt Tensioning Pulley
• Cylinder Block
• Dipstick
• Positioning Jig
• Timing Belt Cover
• Carburetor Cover and Carburetor Bowl
• Front and Rear Half of Water Pump
• Flywheel Clutch
• Fan Belt
• Head Gasket
• 8 Valve Springs
• Distributor Assembly
• Electric Motor Unit
• Battery Box
• 67 Phillips Head Screws
• Color Poster with Instructions
• Additional items required but not included:
• 2 AA Batteries
• Sprue Cutter or Hobby Knife
• Vegetable Oil

Ages 8 and up.