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TC88 inner bearing fail

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Old Feb 7, 2019 | 03:11 PM
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Default TC88 inner bearing fail

I was in the process of doing the cam chain tensioner upgrade kit for TC88. Apparently I didn't have the bearing puller tool in very well and when pulling the inner cam bearing out the bearing fell apart inside the cam chest. There was a clump of a few of the needles in the bearing hole i pulled out with a magnet. I have found 20 of the needles so far, but I think there should be a couple more. I'm not sure just how many there should be. I made a little magnet tool to try and reach down the bearing hole but it's too tight. I can't seem to get anything in that hole to fish out any more of the pieces out. I'm pretty terrified of what ya'll are going to say to do next. Any clever ideas to retrieve the remaining pieces??
 
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Old Feb 7, 2019 | 03:32 PM
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No real terror in splitting the crankcase.
You will know at that point, and be able to sleep easy.
Scott
 
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Old Feb 7, 2019 | 06:14 PM
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Because you are hitting the flywheel. I believe INA had 23 bearings. Only way to look down into the case to see is to pull a cylinder or split the case.
 

Last edited by Ed Ramberger; Feb 7, 2019 at 06:15 PM.
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Old Feb 7, 2019 | 08:03 PM
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Originally Posted by Hillsidecycle.com
No real terror in splitting the crankcase.
You will know at that point, and be able to sleep easy.
Scott
i definetly want to be sleeping easy. The added expense is the scary part.
 
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Old Feb 7, 2019 | 08:06 PM
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Originally Posted by Ed Ramberger
Because you are hitting the flywheel. I believe INA had 23 bearings. Only way to look down into the case to see is to pull a cylinder or split the case.
Thanks for the number count on the bearings. I’ll probably split the case. Better safe than sorry
 
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Old Feb 7, 2019 | 08:09 PM
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Originally Posted by jenius308


Thanks for the number count on the bearings. I’ll probably split the case. Better safe than sorry



To 100% verify just get someone here to count or get a junk one from the dealer. You have to remove the jugs to split cases so I would look down in at that point and compare all parts retrieved to an assembled bearing. I don't have any laying around or I would count for you. Gaskets are cheap - don't worry. Also, I have several sets so we can get you the good guy deal - we will get you through this.
 

Last edited by Ed Ramberger; Feb 7, 2019 at 08:18 PM.
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Old Feb 8, 2019 | 05:21 AM
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if all rollers cant be found,drain the lower end end & flush it with some kerosene.that should get the rollers by the drain
 
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Old Feb 8, 2019 | 06:40 AM
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pull the crankcase drain plug and use a strong magnet on the outside of the case to work any possible remaining pieces towards the drain hole.

worth a shot as opposed to splitting the cases.
 
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Old Feb 8, 2019 | 08:58 AM
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Good options y’all. Thanks a ton! I’ll give it all a go and see what turns up.
 
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Old Nov 20, 2021 | 03:41 AM
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Originally Posted by Mattbastard
pull the crankcase drain plug and use a strong magnet on the outside of the case to work any possible remaining pieces towards the drain hole.

worth a shot as opposed to splitting the cases.
Great Idea
 
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