Downloads >> Process Mapping Templates >> Engine Rebuild >> Find TDC of Cylinder 1

How to Rebuild an Engine

Find TDC of Cylinder 1

1. Turn engine approximately to TDC (Top Dead Center) of cylinder 1
• Zero dial indicator
• Tools needed: Degree wheel
• Tools needed: Dial indicator
  
  
2. 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
  
  
3. 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
  
  
4. Add both readings together and divide by 2
   
   
5. Move pointer to the degree equal to the number
• Tools needed: Pointer
• Tools needed: Degree wheel
  
  
6. Rotate engine to 0 degree
• This should be the point at which the dial indicator changes direction
• If direction doesn't change, repear the process until TDC is found
• Tools needed: Degree wheel
• Tools needed: Dial indicator

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