270 degrees is 3/4 of a turn
A 1/4 of a turn in geometry is 90 degrees
90º=1/4 turn 360°= 1 Full Turn 180°= 1/2 Turn 270°= 3/4 turn
It is: 1/4 of a 360 degree turn
4/1
The Turn On - 2006 1-4 was released on: USA: October 2006
Crank the engine, let it idle. If it dies, turn the screw in 1/4 turn. Crank it. Repeat until it doesn't die. Then turn it in one additional 1/4 turn. Now if you mean the mixture screw, typically 1 1/2 turns out. After you set that, rev it up. If it revs clean, leave it. Another method is to set the idle screw and set the mixture screw 1 1/4 turns out and back it out in 1/4 turn increments until further adjustments cease to increase revs at idle, then turn it 1/4 turn in.
4
It is a four step process using torques and a final 1/4 turn of the cyl. head bolt. 45, 65, 65, then 1/4 turn. Check out Alldata.com for a subscription for vehicle information.
1/4
I assume you are asking about a quarter turn. A total turn is 360 degrees. A quarter turn is 1/4 of the way around (you have to do it 4 times to make a whole turn). 360 degrees * 1/4 of the way around = 360/4 = 90 degrees
You turn the mixed number into an improper fraction. Say, if you had 1 and 1/4, you would turn it into 5/4. 5 1 5 - * - = - 4 2 8