Originally Posted by
onehundred80
I measured the groove depth (.135") on a shadow graph (10:1) and that dimension should be within a thou or so.
To measure the depth accurately you need to do it this way or use a depth micrometer with a point on it, using a scale does not take into account the radius at the bottom of the groove.
Measured with a engineers scale I get roughly .120" depth, the scale is .040 thick.
I did measure the whole groove profile but my filing system weaknesses allowed me to lose the paper with the sizes on it.
The SLK uses the same pulley I am sure so that is a bit strange.
My depth gauge did not have a point. The belt does not go that deep so I guess the depth is a function/result of the tool shape used for the angles.