The Poorman's Off Chassis Restoration.Com
Car Nose Logo
Photo Gallery
Web Cam
Specs
Cost
Links
Raffle
Pin-ups
Erudition
Contact
Store
Home
IPC
Video
Parts
Comedy
Destructive Tests

 

 
 
 

Cylinder Test:

To find out which cylinder is the weakest, connect a vacuum gauge and tachometer to the engine. Run the engine at normal operating temperature; write down the indicator readings at idle. With the engine running disconnect the number one spark plug wire from the distributor cap (DANGER! take precautions to avoid being shocked). Once the plug wire is removed, write down the readings of the indicators. Replace the removed wire (DANGER! Take precautions to avoid being shocked). Continue removing each wire one at a time, writing down the indicator readings. Subtract each reading from the initial reading. The lowest reading would indicate the weakest cylinder, indicating that the cylinder is not contributing that much power.