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Transfer Case Idler Gear Bearing


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#1 ItsNotDads

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Posted 02 January 2024 - 02:59 PM

Hi all,

 

So this didn’t go according to plan😂

 

Soaked in penetrating oil, heated surround with a butane torch (before we read that’s not a good idea!), internal 3-leg puller and we pulled the top flange off the bearing shell and the rest is still stuck fast. Ho hum.

 

Anyone dealt with this situation and succeeded please? 
 

Thanks!!

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#2 GraemeC

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Posted 02 January 2024 - 03:04 PM

Gradually cut through the bearing outer casing with a Dremel.  If you do that it three places it will break up very easily.



#3 stoneface

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Posted 02 January 2024 - 03:34 PM

Use a dremel as suggested or if you have a welder put a bead of weld in a couple of places on the shell. The weld contracts and the shell falls out.



#4 Spider

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Posted 02 January 2024 - 04:58 PM

The correct tooling perhaps ?

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There's inexpensive kits available these days, that I think are indispensable not only on these jobs but also for pulling the bearings from the suspension arms.

 



#5 Icey

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Posted 02 January 2024 - 06:57 PM

Agree with Spider - a cheap blind bearing puller gets these out with minimal effort and can be used on other parts as well.

They used to be quite expensive tools but I bought a cheap ~£40 kit a while back and have done a few transfer cases now.

#6 stoneface

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Posted 02 January 2024 - 07:32 PM

I agree that the proper tool is the way to go.

 

But, when you've already pulled all the rollers out and are left with just the shell, a puller doesn't have much left to grip onto.



#7 ItsNotDads

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Posted 02 January 2024 - 07:41 PM

I agree that the proper tool is the way to go.

 

But, when you've already pulled all the rollers out and are left with just the shell, a puller doesn't have much left to grip onto.

Yes, with hindsight that would have been the best option. I wonder now if the welding trick might be our best bet?



#8 eric67

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Posted 02 January 2024 - 07:54 PM

I tried a puller on mine but it was well and truly stuck so ended up using a Dremel anyway. if used carefully with plenty of stops to check progress I feel that this is a good solution

 

Interestingly it looks like Spider has adapted his puller to wind out the bearing whereas mine uses a slide hammer action which is probably not as efficient due to the jarring shock



#9 johnR

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Posted 02 January 2024 - 08:14 PM

I've used the welding the bearing race method - even if it doesn't shrink enough to fall out the weld can be used to get grip for an internal puller 



#10 Spider

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Posted 03 January 2024 - 05:24 AM

Interestingly it looks like Spider has adapted his puller to wind out the bearing whereas mine uses a slide hammer action which is probably not as efficient due to the jarring shock

 

Yes, I should have mentioned that. I initially bought 2 loose Sykes & Pikervant Internal Expanding Collets about 40 years ago. I didn't like the slide hammer action of their kit and so I made mine for use with pipe pieces and althread rod. The bit of kit in these photos are those same ones I bought all that time ago. I don't know how many hundreds of bearings these have pulled in all that time, while they are now showing their age & use, I feel I can put down their longevity partly due to the quality of them but mostly by using them in a more gental fashion on threaded rod rather than bashing them to death with a sliding weight on a rod.  

Personally, I do believe slide hammers have their place, I do have one, but pulling bearings like these from alloy casings isn't a place to use them - just my own view.



#11 bpirie1000

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Posted 03 January 2024 - 11:35 AM

I left mine soaking in some diesel over night to loosen this going off..

Not 100% sure it worked but in my mind it did....




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