Cylinder Wall and Surface Finish Analysis
At 26:13 in
This NASCAR Engine Was Built 20 Years Ago and NEVER Used! How Much Power Has It Lost? (Ford C3)
What happens here
The cylinder walls, previously observed to have rust, are now closely examined using a specialized digital microscope and a profilometer (surface roughness tester). The microscope projects a magnified view of the cylinder surface onto a laptop, allowing for precise measurements of roughness, cross-hatch angles, and the depth of rust pits. The profilometer measures surface texture in microns, providing numerical data for comparison. The rust pits, despite being visually significant, are quite shallow (around 0.6 thousandths of an inch or 15 microns), suggesting they didn't significantly impact ring seal. The analysis focuses on understanding how these imperfections affect overall engine performance and longevity.
Goal: Analyze the microscopic surface finish of the cylinder walls, including rust pits and honing patterns.
Tools and materials
- Digital Microscope — Magnified visual inspection of cylinder walls
- Honing Machine — Precisely honing cylinder bores
- Honing Stones — Abrasive material for honing cylinders
- Laptop — Displaying microscopic images and profilometer data
- Profilometer — Measuring surface roughness metrics (Ra, Rk, Rvk, etc.)
What they say
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What they say
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