09-09-2018, 09:49 PM
(This post was last modified: 10-09-2018, 01:29 AM by Bob Culver.)
I presume you have access to or someone will supply standard guidelines to patterns and adj. Both sides of teeth have to be considered.
Where bedded in can spend a lot of time chasing a pattern which may not be achievable. Keep notes and return to the best. The two mesh combination of the 8:42 teeth can also be puzzling.
If the run out is not evident from pattern, presumably little worn.
If there is a wear step on the pinion can get very heavy line contact at the very outer (heel) edge of cw which hides main mesh and promotes chipping.
I appreciate it done for photo but usual to check finally assembled with casing halves fully tightened. Then involves repeat withdrawal of the pinion or working thru plug hole. Considerable care necessary not to overload pinch the side bearings at any stage.
Judging by how quickly many change axle shafts etc, where any gasket change alters meshing, many diffs must run with less than optimum or with altered previous adjustment.
It is years since I did but from books, viewing cw, toe contact, CW too close; low contact, pinion too far in. Backlash must be maintained.
Drive side ideally somewaht to the toe, tending like 4th tooth from bottom in photo, but also further up the tooth flank. Other side of teeth ideally central.
Where bedded in can spend a lot of time chasing a pattern which may not be achievable. Keep notes and return to the best. The two mesh combination of the 8:42 teeth can also be puzzling.
If the run out is not evident from pattern, presumably little worn.
If there is a wear step on the pinion can get very heavy line contact at the very outer (heel) edge of cw which hides main mesh and promotes chipping.
I appreciate it done for photo but usual to check finally assembled with casing halves fully tightened. Then involves repeat withdrawal of the pinion or working thru plug hole. Considerable care necessary not to overload pinch the side bearings at any stage.
Judging by how quickly many change axle shafts etc, where any gasket change alters meshing, many diffs must run with less than optimum or with altered previous adjustment.
It is years since I did but from books, viewing cw, toe contact, CW too close; low contact, pinion too far in. Backlash must be maintained.
Drive side ideally somewaht to the toe, tending like 4th tooth from bottom in photo, but also further up the tooth flank. Other side of teeth ideally central.