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inside a failed angle gear box

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inside a failed angle gear box

Post by darrylrobert » Mon Jun 22, 2020 2:14 am

My used replacement angle gear has a very small leak from i believe the adjusting "castle nut" oring. i wont be fixing it becaause i am not keen to disturb the setting that nut has. I took apart my damaged angle gear curious to see where it could be leaking from and how it works.

you can see the worn splines on the input shaft, the collar was equally worn causing it to spin freely. Brown stuff looks like corrosion but its actually grease.
failed angle gear 1
failed angle gear 2

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Re: inside a failed angle gear box

Post by SuperHerman » Mon Jun 22, 2020 9:25 pm

That doesn't look too bad. You can try to wire brush and clean up the splines and then plug it into a collar to see what kind of play, if any you have. The collar is made of a softer metal than the gear splines so that it survives, fairly typical.

I had one once where the actual bevel inside the housing was toast.

Re the lock nut, I believe the work around is to closely and precisely mark the nut and the case, then count turns. Return the preload to the original marks. That is what I did and didn't have any issues. I believe there is a Volvo TSB on resealing the cases which should have more information for you.

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