Re-Engineering the Model A Engine
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  • Main Article
    • 01. Differences Between Model A and Modern Design Practices
    • 02. Evolution of the Model A Ford Engine
    • 03. Racecars
    • 04. Comments on Modified Engines
    • 05. Groundwork for Redisign
    • 06. Constraings Imposed
    • 07. Engineering Methodoligy (Old vs. New)
    • 08. Wishlist for Redisign
    • 09. Operating Conditions and Assumption
    • 10. Summary of What Can Be Done
    • 11. Engineering Starting Point
    • 12. Connecting Rod Design (A-6200)
    • 13. Crankshaft Design (A-6303)
    • 14. Main Bearing Caps and Rear Main Read Seal Design
    • 15. Cylinder Block Design (A-6015)
    • 16. Assembly of Cores
    • 17. Machined Casting Solid Model
    • 18. Oil Pump Drive Bearing Design (A-6560)
    • 19. Other Parts
    • 20. Comment on Machine Shops and Rebuilt Engines
    • 21. Assembling the New Engine
    • 22. Filling a Void
    • 23. Status of Engineering
    • 24. Whats Next
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Groundwork for Redisign


One of the reasons that modern engines have longer life and greater reliability is that their crankshafts are stiffer, are better supported, and fully counterweighted. Compared to a Model A engine crankshaft, the crankshaft in a modern four cylinder engine has larger diameter shorter bearings, a main bearing on each side of every cylinder (5 mains), and a fully counterweighted crankshaft with two equal counterweights for each cylinder. This engineering study and redesign features a 5 main crankshaft, larger diameter short bearings, and full counterweights.


Another reason is that with modern engineering, parts in dynamic environments can be optimized through the use of Solid Modeling and Finite Element Analysis

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