Re-Engineering the Model A Engine
  • Home
  • 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
  • Updates
    • Updates 2010 - 2015 >
      • April 2010
      • June 2010
      • July 2010
      • September 2010
      • December 2011
      • March 2011
      • May 2011
      • August 2011
      • October 2011
      • January 2012
      • March 2012
      • May 2012
      • August 2012
      • November 2012
      • February 2013
      • August 2013
      • March 2014
      • May 2015
    • Updates 2019 - Current >
      • July 2019
      • August 2019
      • September 2019
      • November 2019
      • January 2020
      • March 2020
      • May 2020
      • July 2020
      • September 2020 >
        • Engine Teardown Results
      • December 2020
      • February 2021
      • March 2021
      • September 2021
  • Photos
    • May 20, 2011 Foundry
    • Photos from updates
  • Videos
    • May 20, 2011 Foundry Trip
    • Machining Crankshaft
  • Guides
    • New Engine Builders Guide
    • Doubling the Flow Area of a Model A Oil Pump
    • Installing an Oil Filter
  • Social Group Discussion
  • How to Order
  • Contact Information
MACHINED CASTING SOLID MODEL


 A solid model has been created that accurately locates all machined surfaces and holes relative to each other within 8 decimal point accuracy. This model was created independently from the crankcase cores so that when superimposed on the crankcase cores, it will serve as a check to verify the validity of the design. This solid model uses six different colors to indicate which features are machined from each of the six sides of the casting. This solid model’s only deviation from the drawing (A-6015) is that the exhaust ports are not counterbored for the gland rings (A-9440). Figures 25 and 26 show two different views of this model. This model is machine shop friendly and very easy to transform into a CNC program.

Picture
Figure 25, Machined Casting Solid Model
Picture
Figure 26, Machined Casting Solid Model


 
When the machined surfaces model is superimposed into the completed mold, various section cuts can be made to insure that there is adequate machine allowance and that all drilled passages and threaded holes are centered in their bosses. One such section is shown in Figure 27 which is a section taken at the center main looking towards the rear.

Picture
Figure 27, Section at Center Main Looking Towards Rear
Next
Powered by Create your own unique website with customizable templates.