Downloads >> Process Mapping Templates >> Engine Rebuild >> Determine Intake Lobe Centerline

How to Rebuild an Engine

Determine Intake Lobe Centerline

1. Place dial indicator on #1 intake lobe
• Tools needed: Dial indicator
  
  
2. Rotate engine counterclockwise until you achieve maximum lift
• This is the point at which the degree wheel changes direction
  
  
3. Zero dial indicator
• Tools needed: Dial indicator
  
  
4. rotate engine counterclockwise .050"
• Record reading on degree wheel
• Go past then return to remove slack in chain
• Tools needed: Degree wheel
• Tools needed: Dial indicator
  
  
5. Rotate engine .100" clockwise
• Record reading on degree wheel
• Go past then return to remove slack in chain
• Tools needed: Degree wheel
• Tools needed: Dial indicator
  
  
6. Add both readings together and divide by 2
• This number is your intake lobe centerline
  

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