Thursday, August 20, 2015

Determine Gear Ratio By Spinning One Wheel

End Gear Ratio by Spinning A Spin


A vehicle's gear ratio is the velocity of rotation of the propeller shaft (or ride shaft) Towards the rear wheels. In most cases, the engine and transmission spin the propeller shaft yet faster than needed, so the vehicle's differential meeting slows down that locomotion to a augmented viable quickness by system of bell and Driving-wheel gears. The most accurate means to decide a vehicle's gear ratio is to count the teeth on these gears, nevertheless, the differential would keep to be disassembled to achieve this. There is a must easier and quicker idea to actuate your gear ratio by spinning one rear revolve.


Instructions


1. Arena the vehicle on a decided, constant surface and district wheel chocks under the front wheels of the vehicle to prevent any unwanted movement. Raise the rear of the vehicle with a hydraulic jack and support the axle housing on each side of the vehicle with sturdy jack stands. Lower the hydraulic jack.


2. Crawl under the vehicle and mark a horizontal line about two inches long on the propeller shaft with a piece of chalk.


3. Mark the bottom of one of the rear tires at the Six o'clock position with a piece of chalk.


4. Use the chalk mark on the rear tire as a reference and begin rotating the tire by hand from a position that allows you to see the propeller shaft.


5. Turn the rear tire one complete revolution while simultaneously counting the number of revolutions of the propeller shaft indicated by the horizontal chalk mark. Be as accurate as possible.


Use the hydraulic jack to raise the vehicle high enough to remove the jack stands from under the axle housing. Lower the hydraulic jack and remove it from under the vehicle. Remove the wheel chocks.


6. Determine your gear ratio, which is the number of propeller shaft revolutions that were made Towards one tire revolution. For example, if your propeller shaft rotated three and one half times Towards one tire revolution, your gear ratio is 3.50.7.