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Old 03-09-2005, 12:03 PM   #1
Drif10 OP
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Goddamn bearing help

So I'm changing out the LC4 mainshaft bearing. Much head banging, I finally get it out. Put in the new bearing, and now the shaft is very hard to turn. According to the KTMTalk thread, one guy had this problem, used the basket as a slide hammer back against the nut, and it spun free.

Wanna guess what isn't working for me? I wish this was JM, I need to SCREAM!!!

Any ideas guys?
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Old 03-09-2005, 02:09 PM   #2
Happe
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Quote:
Originally Posted by Drif10
So I'm changing out the LC4 mainshaft bearing. Much head banging, I finally get it out. Put in the new bearing, and now the shaft is very hard to turn. According to the KTMTalk thread, one guy had this problem, used the basket as a slide hammer back against the nut, and it spun free.

Wanna guess what isn't working for me? I wish this was JM, I need to SCREAM!!!

Any ideas guys?

Hi Drif,

After installing the new bearing, you have to give the schaft a good blow with a plastic hammer.
I was told to do that by two different KTM Dealerships, so I did and "tara" works perfectly.
Did it now on two engines
Go for it kick it

extreme bearing make over

cheers

Stefan
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Old 03-09-2005, 02:23 PM   #3
GODSPEED
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Drif, I am not looking forward to this. I going to do mine in the next few months. Sounds like your about there. Have a beer, take a deep breath and count to 53.


Happe, Looked at your pic. What did you use as a bearing puller? Thanks.
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Old 03-09-2005, 02:27 PM   #4
meat popsicle
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why can't anyone get a bearing shop to do this? i had an old fashioned shop do the bearings on the steering column of the 65 ford f100 i used to ride and it was CHEAP. plus i didnt have to get the ford part (if it was even available anymore.

just a thought; might be hard with it being on the bike but who knows?
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Old 03-09-2005, 02:39 PM   #5
Drif10 OP
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Quote:
Originally Posted by Happe
Hi Drif,

After installing the new bearing, you have to give the schaft a good blow with a plastic hammer.
I was told to do that by two different KTM Dealerships, so I did and "tara" works perfectly.
Did it now on two engines
Go for it kick it

extreme bearing make over

cheers

Stefan
Cool, I'll try it. Thx.
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Old 03-09-2005, 06:10 PM   #6
dagwood
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remember...the first tool was a Hammer. so when in doubt reach for the first tool. when in real dought get a bigger hammer.


I hope your documenting this as I'm gonna have to do it sometime soon also
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Old 03-09-2005, 08:14 PM   #7
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Hammer didn't work. phucke!

Next idea?
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Old 03-10-2005, 01:37 AM   #8
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Quote:
Originally Posted by Drif10
Hammer didn't work. phucke!

Next idea?
Hi Drif,

just to get this straight.
You have pulled out the old ball bearing, put in the new roller bearing.
first the washer than the bearing than the inner ring. Now the bearing is flush with the engine chassis?
Now you tried to turn the shaft and it is going very sturdy?
While you put the new bearing in place the mainschaft may have moved a bit. Normally after a good blow on the shaft it will run free again. And I mean a good blow
If not try something in the other direction, but I wouldn't use the clutch parts.

Edit: is the engine in gear?

cheers

Stefan
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Old 03-10-2005, 01:44 AM   #9
Happe
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Quote:
Originally Posted by GOD
Happe, Looked at your pic. What did you use as a bearing puller? Thanks.
Dear Mr. God,

I used this one from RS Components UK, 513-720
Twin Pull Ball Bearing Puller Kit


And can you make me dick a bit longer?

cheers

Stefan
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Old 03-10-2005, 03:48 AM   #10
Drif10 OP
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Quote:
Originally Posted by Happe
Hi Drif,

just to get this straight.
You have pulled out the old ball bearing, put in the new roller bearing.
first the washer than the bearing than the inner ring. Now the bearing is flush with the engine chassis?
Now you tried to turn the shaft and it is going very sturdy?
While you put the new bearing in place the mainschaft may have moved a bit. Normally after a good blow on the shaft it will run free again. And I mean a good blow
If not try something in the other direction, but I wouldn't use the clutch parts.

Edit: is the engine in gear?

cheers

Stefan

Correct on all. Tried it in and out of gear. I was wacking it pretty hard, I'll try hitting it harder, just hard to hit it flat without smacking my knuckles on something.
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Old 03-10-2005, 05:27 AM   #11
meat popsicle
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Quote:
Originally Posted by Drif10
Correct on all. Tried it in and out of gear. I was wacking it pretty hard, I'll try hitting it harder, just hard to hit it flat without smacking my knuckles on something.
do you have something suitable (material) to use as a punch? maybe an oak dowel or even a 2x4 if it will transfer yer mortal blow to the shaft. just a thought - hope it lets go...

Quote:
Originally Posted by Happe
Hi Drif,

is the engine in gear?

cheers

Stefan



i don't think i could'a posted that even if i'd thought of it! that would get a laugh outa drif10 4sho.
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Old 03-10-2005, 05:28 AM   #12
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That didn't work.

How hard is it to get to the other end of the shaft? Can't see how I can pull that bearing back out now, puller won't fit.

For the longest time, I thought KTM stood for Kan't Take Motorcycle. Tempermental to start, finicky about fuel, no where near as reliable as a Honda, constant repairs, now faulty bearings and water pumps.

The more I own this bike, the less I like it. It's qualities are being outweighed by it's difficulties.
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Old 03-10-2005, 05:36 AM   #13
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primadonnas look good in the playground, but once you get out on a date they can really piss ya off!
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Old 03-10-2005, 07:05 AM   #14
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Quote:
Originally Posted by Drif10
That didn't work.

How hard is it to get to the other end of the shaft? Can't see how I can pull that bearing back out now, puller won't fit.

For the longest time, I thought KTM stood for Kan't Take Motorcycle. Tempermental to start, finicky about fuel, no where near as reliable as a Honda, constant repairs, now faulty bearings and water pumps.

The more I own this bike, the less I like it. It's qualities are being outweighed by it's difficulties.
For others who will try this, the last few mm's of tapping it in is when you should be checking for play and only tap it in til you get the right amount.
If you go too far, it may be time to split the cases. If you are truly fed up I'll give you $500 for the remaining junk that works.
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Old 03-10-2005, 07:09 AM   #15
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is the bearing loaded up from pressing it in? my bet is yes. if you pushed on the outer race to get it in give the inner race a bump with a brass drift and hammer. whack the outer if you used the inner to push.
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