Spring height gauge calibration

[two]

I have the bully style gauge and don’t have the piece that comes with it to calibrate. How do I go about calibrating it.

 

[flattop1]

Post #10
https://4cycle.com/karting/threads/2-disk-6-spring-bully-clutch.127414/post-912150

 

[flattop1]

This one as well .
https://4cycle.com/karting/threads/using-clutch-spring-height-gauge.115600/post-824002

 

[two]

So pretty much, I can measure a retainer thickness and then set the gauge up/calbrate it by that.

 

[flattop1]

Yes . Or zero gauge on a flat surface. Then subtract the retainer height from your intended spring height.
Or make a shim the height needed and zero on that .

 

[JGR32]

Yes . Or zero gauge on a flat surface. Then subtract the retainer height from your intended spring height.
Or make a shim the height needed and zero on that .

.087 retard on the gauge for Bully retainers

 

[CarlsonMotorsports]

Keep in mind that there are two different thickness flanges on the adjuster nuts of Bully clutches over the years (.040, & .060.") Measure what you've got FIRST, then calibrate if you like.
I covered this exact issue in this week's Tech Talk Tuesday article on our Facebook page.


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