what is chalk testing on tires ( how to do this ) is my ?
Thread Starter
JK Junkie
Joined: Feb 2011
Posts: 2,318
Likes: 12
From: New Hampshire
what is chalk testing on tires ( how to do this ) is my ?
and what would i be looking for while doing this ? and is there more than one way to test and see if your getting propper air setting? for new mut terain tires ???? want to get it right the first time before i run my new ones !! thanks 
JK Enthusiast
Joined: Jun 2011
Posts: 183
Likes: 0
From: Georgia
Set your tire pressure to the proper amount, then take some white chalk and scribe across the tire and run at speed to see if the chalk wears off evenly after a short trip. If not, then it indicates either low tp, high tp, or alignment issues.
JK Freak
Joined: Apr 2011
Posts: 847
Likes: 0
From: Texas
Chalk line test:
Park on level ground and aim front tires straight ahead.
Draw a line completely across the tread.
Pull ahead 2-3 tire revolutions or until the chalk starts wearing off.
If the chalk mark is worn off equally across the width of the tread, the inflation pressure is correct.
If the chalk mark is worn off more in the center than at the edges, the tire is over inflated.
If the chalk mark is worn off more at the edges than in the center, the tire is under inflated.
nitrogentiremachine.com/proper_tire_inflation.htm
Park on level ground and aim front tires straight ahead.
Draw a line completely across the tread.
Pull ahead 2-3 tire revolutions or until the chalk starts wearing off.
If the chalk mark is worn off equally across the width of the tread, the inflation pressure is correct.
If the chalk mark is worn off more in the center than at the edges, the tire is over inflated.
If the chalk mark is worn off more at the edges than in the center, the tire is under inflated.
nitrogentiremachine.com/proper_tire_inflation.htm