Wednesday, May 14, 2014
How to Measure an Exhaust Pipe
Fumes created by your automobile during fuel burning are expelled from the engine by the exhaust system. The exhaust pipe, or tailpipe, is where fumes exit the car. Many car improvement jobs involve replacing rusted or broken pipes. It is important to know the exact diameter of the pipe that fits the rest of the exhaust system when replacing it. This process is complicated by the location of the exhaust pipe, and often by its angle of cut on the pipes end.
Instructions
- 1
Raise your car using a car jack to a height that will allow you to lie comfortably underneath the vehicle.
2Open the clamps of your caliper, and place them around the outside of the exhaust pipe. Choose a portion of the pipe that is straight. Close the caliper clamps around the pipe securely, but not tight enough to dig into the metal of the pipe. Record the reading on the calipers on a piece of paper.
3Stick one clamp arm of the caliper inside the end of the tailpipe, leaving the other clamp arm outside the pipe. Close the clamp around one wall of the pipe, measuring the pipes thickness. Read the caliper and record this number.
4Multiply the pipes wall thickness by 2. Subtract this number from the total outside pipe diameter determined in Step 2. This remaining number is the inside diameter of your exhaust pipe. The full equation is:
Inside Diameter = Outside diameter - (2*Wall Thickness)
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