Getrag 265 parts break down

Is this the bearing puller - it's from that e28 thread, in the thread you see different versions of this puller for a /5:
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Help me ,
for what is is that tool good?
When you remove the outer ring from the grooved bearing and heat the housing, the bearing stay on the shaft and you get the box apart easy?

Or is that diff, at the 265 than the 242?

Breiti
 
Help me ,
for what is is that tool good?
When you remove the outer ring from the grooved bearing and heat the housing, the bearing stay on the shaft and you get the box apart easy?

Or is that diff, at the 265 than the 242?

Breiti
I haven't ever opened up/worked on a transmission. If you look at the link below they show steps for pulling apart a 265, there are pictures that look like they are using this puller. I had hoped that someone with more knowledge than me can offer some insites. I get the feeling that these 265's are getting fewer and fewer so I wondered if there was enough knowledge out there to do full rebuilds. Below is the link:
Opening the 265 - Page 5 - MyE28.com
 
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I think I better go out to the garage and turn my 265/5 that is sitting on a cart under the engine on a stand...
 
As far as I see (and as I know) the front part of the gear box is almost the same like the 4 speed.
And as well you see, that here destroy the bearings by dismount with force.

So the better method will be to leave the bearing(s) in the shaft by heating thre housing and than remove the bearing also by heating from the shaft.

Correct me if I'm wrong.

Pic show the housing from the 528 website where you see both bearings destroyed.

Breiti
 

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Pic show the housing from the 528 website where you see both bearings destroyed.
Breiti, the bearing in that housing is not destroyed.

That transmission has a 3-piece bearing, with the inner race split into 2 separate pieces.
Go back to page 2 of that website link.
The tool is used to remove the 1 remaining inner bearing race from the shaft.

Here is a new Porsche transmission bearing of the same design, with 3 pieces...
DSCN6409.JPG
 
I am curious how the gears in a closed trans would rust. Also with some surface rust, I would think using the trans and flushing the oil a few times would polish the rust off the mating surfaces
 
I am curious how the gears in a closed trans would rust. Also with some surface rust, I would think using the trans and flushing the oil a few times would polish the rust off the mating surfaces
It takes many years of sitting but yes I am proof they rust. Condensation eventually wins over oil if the transmission doesn't move or spin from time to time.
Whether or not it destroys the box when used I'm not sure, have not tried putting miles on my rusty one.
 
When transmissions, diffs and engines heat up and cool down they draw in outside air which contains moisture. Same with braking systems, which is even worse given that brake fluid is hydroscopic. If they sit for a long time your will see rust on the internal components. This also contributes to the fluids breaking down over time.
 
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In other words what @Redrumm3 wrote, the housing "breath" and with that, there went air with moisture in the housing, water condense on the cold parts every day by day and night temp differences.

Only way to avoid that is, to store as example the gearbox, in a sealed bag with silica gel bag inside.

But nobody did that, cause the stuff we found on ebay or graigslist are mostly stored in a shelf outside in the backyard or a barn....

And rust on a gear mean future pitting.

Breiti
 
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