Author Topic: backlash test  (Read 1582 times)

Offline hobs

  • Sr. Member
  • ****
  • Posts: 256
  • Thanked: 55 times
  • ST Legend
backlash test
« on: January 19, 2015, 12:37:14 PM »
Went for a ride with a group of friends on the weekend and while waiting at a servo for those with low klm tanks were filling up I was sitting astride my bike with the motor off and in gear (ST1100) watching the activity going on. I was inadvertently rocking my bike backwards and forwards with my legs, you know like you do when you are minding a pram and rocking it back and forth without thinking. When I paid attention to what I was doing, I was thinking the amount of travel could be an indication of drive wear, spline, rubbers coupling etc. I know my spline is worn from my rebuild days so expected a little movement.

My question is, is this a reasonable assumption? What is the amount of travel on a bike with non-worn drive? Didn't measure the travel at the time as we moved off. Would anyone be interested in doing the test on their bike and post the amount of travel to see if this is a reasonable indicator of wear and possible failure. Just interested in the result from others.

Cheers,
Hobs
 

Offline Pezzz

  • Legendary "1000 Club" Member
  • *****
  • Posts: 1587
  • Thanked: 120 times
  • ST1100 Rider
Re: backlash test
« Reply #1 on: January 25, 2015, 03:13:10 PM »
Don't forget that lash would be from all parts of the drive train not just the rear splines......
You have shaft, gearbox, and all the engine bits as well between wanting to make the piston move up and down. And that really is where that play comes in.
You will only get pressure when all those parts try to move the pistons in the cylinders.
Pezzz
:wht11
FarRider # 730