Category Archives: 4×4 Sierra CityMörö

My preferred choice of transportation. This really is my everyday car.

Sierra tie rod r&r

Old one out, soon “new” one back in it’s place:

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Couple of pictures from Sierra’s front drive shaft boot R&R

Here are a couple of photos about my Sierra’s front drive shaft boot R&R task from a couple of days ago:

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Winter sport takes its toll

Seems that I need to work with my Sierra for a change.

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Most probable cause for this kind of twisting are my winter sport kind of excercises. But luckily this is not so difficult r&r job to do.

Asembling the spare gearbox back to one piece

This is the most fun and rewarding part of refurbishing the spare parts. 🙂

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Viscous coupling unit almost ready

I will let the viscous coupling unit to stay still for some while and then see do I need to add more silicone oil to it. The oil is pretty sticky stuff. 🙂

All parts are now cleaned and as soon this is ready I will mount the planetary gear back inside to the gearbox.

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Half way there

One bottle of silicone oil used and half of the discs are in. I had to do one oil change + change summer tyres to one relative’s car so this viscous coupling unit reassembly will continue tomorrow.

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Filling the viscous coupling unit

This takes time to do, but still feels very relaxing. 🙂

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Sierra gearbox tail opened

Now the tail section of gearbox is opened:

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As soon as the new X-rings for the spare viscous coupling unit arrive I can put that back together. And when that is ready I will swap it to this gearbox.

Cleaning Sierra’s spare gearbox

Before:

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After:

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Maybe it is now clean enough to to open its tail section…

Spare gearbox

Seems that the spare gearbox will need some cleanup before I can open it… The old engine leaked oil from various places which is why this gearbox has oil all over it.
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