Rear axle rebuild 2

Yep… this time round, my zenki differential gets the treatment it deserves…

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First-pass wire-wheel pictured here πŸ™‚

Using a slide-hammer, my axles started to come out slowly:

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A slide hammer is worth it πŸ™‚

Here’s a picture of it gaining some distance away from the housing, you can see the bearing surface peering through:

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The axle bearing started to peer out of before me…

Eventually it gave way and came out… the bearings were surprisingly in good condition:

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You can see the surface rust that developed around them – this is the common reason why they seize up, making them challenging to remove:

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Surface rust that developed around the bearings.

With the axles free, the differential was accessible too. With all the parts (and weight) removed, the housing was much easier to manoeuvre.

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Wire-wheeled things down to bare-metal before finishing up with sandpaper for harder-to-reach areas. Again… with the axles and differential removed, the task was much easier to do.

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Second-pass wire wheeling
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Some hard to reach areas visible in this photo.

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The final result just before sealing the metal.

Added a light coat of rust treatment over the top:

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Followed by epoxy primer:

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And finally, a durable top coat:

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With this all accomplished, I started making some new hard lines. Given past experience with the other axle, prototyping these were a little easier and I managed to make some shorter lines with tighter; more efficient bends:

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Made a few prototypes with spare lines – but not as many as before πŸ™‚

A test to see if a fitting would tighten down. This bend was very close and required a lot of attention to get right. I did one flare to see if things aligned and whether my work was acceptable:

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The next task now is to install the remaining fittings and put some shielding on the lines – on areas things may rub after being tightened down to the housing.

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