Get Out

MaxPower
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2703
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Location
USA
Edited Date/Time 3/12/2016 6:14pm
How would you remove this little booger?
If you cant tell clearly, its a needle bearing that sits in the left half of a KX125 crankcase that spins the clutch shaft.
I dont know what to hook it with . Im thinking carefully pick it apart and grind the outter race with a dremel. I cant see a factory mechanic replacing that bearing in Jeff Wards KX125 like that
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MXVet261
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743
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4/1/2008
Location
Valley City, OH, USA
3/10/2016 5:34pm Edited Date/Time 3/10/2016 5:37pm
You use a blind bearing puller. The fingers of the collet go in the bearing and when you tighten the nut they expand to grab the bearing. Then you connect the slide hammer and pull it out.

https://www.rockymountainatvmc.com/p/989/20342/Tusk-Bearing-Remover?ter…

http://www.harborfreight.com/blind-hole-bearing-puller-95987.html
Oldschool
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1650
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8/29/2006
Location
USA
3/10/2016 8:21pm
If that's a fail
Strap it down in a Bridgeport and walk an endmill into the side wall till it collapses
Or a dermal with a carbide bit till your almost through then hammer it toward the center till it collapses enough to get it out.... Brutal lol
If you run into the bearing surface of the casting a little "Who's going to know" the new bearing will still have plenty of seat.

When your dealing with 70's stuff already "Hacked" I have had to fit Stainless shim stock in and around the original hole !!!!



wfoyz250
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410
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1/19/2011
Location
Spring, TX, USA
3/11/2016 6:33am Edited Date/Time 3/11/2016 6:42am
.....put the whole thing in the freezer for a while. The little the metal(s) contract from temperature, will make it easy to pull out with the blind puller.
The freezer trick works with pressing bearings in too.
Oldschool
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1650
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8/29/2006
Location
USA
3/11/2016 7:17am
+1 on the freezer and socket Slightly smaller then the case dia.
I put leader pins in the freezer at work before I
Pound them into molds and dies.

Or...keave the cage in the case if its not to pitted and just putvthe new needles etc. back in

Hack !

The Shop

mark_swart
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2527
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11/2/2011
Location
Chapin, SC, USA
3/11/2016 3:49pm
You can get the bearing puller or a slide hammer as a "tool loan" from Autozone so you don't have to actually buy one.
Oldschool
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1650
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8/29/2006
Location
USA
3/11/2016 7:47pm
"Liquid Wrench" !!
g0rd057
Posts
354
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1/17/2011
Location
Central, FL, USA
3/11/2016 8:08pm Edited Date/Time 3/11/2016 8:11pm
Use heat to help loosen it. (Thermal Expansion of the case)
Aluminum expands at a greater rate than steel.
MaxPower
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Location
USA
3/12/2016 8:26am
Thanks for your help. I knew you all would have an answer
fookyoo
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88
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8/26/2015
Location
Dallas, TX, USA
3/12/2016 11:40am
OTC bearing pullers work great
or a dremmel with a carbide bit



MaxPower
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2703
Joined
8/15/2006
Location
USA
3/12/2016 6:14pm
I started with the Dremel and after 5 minutes i asked myself what was i doing?
Drove 2 miles to Autozone and got the Blind Bearing puller. It was out in 20 seconds.
it came out so quickly i had time to play around with the slide hammer and give myself the biggest blood blister ever.

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