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Steering head bearing replacement: Difference between revisions

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====Installing the new bearings====
====Installing the new bearings====
'''>>>The following part is for installing the races on the steering head (the frame), correct?>>>'''


Take the larger bearing race (#99-3503 - the race is the part without the pins) and install it on the lower part of the steering head on the frame.  
Take the larger bearing race (#99-3503 - the race is the part without the pins) and install it on the lower part of the steering head on the frame.  
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'''<<<Can you use the old 'correct-sized socket' for this? Lots of people don't have access to different sizes of pipe.>>>'''
'''<<<Can you use the old 'correct-sized socket' for this? Lots of people don't have access to different sizes of pipe.>>>'''
'''<<<And pvc or metal pipe?>>>'''


Get a piece of pipe a teensy bit smaller on the outside diameter than the race but large enough so it cannot slip into the bearing surface of the race.  You want to apply pressure all around the edge of the race, without touching the inside of it.  
Get a piece of pipe a teensy bit smaller on the outside diameter than the race but large enough so it cannot slip into the bearing surface of the race.  You want to apply pressure all around the edge of the race, without touching the inside of it.  
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Be very careful to hit only the outside of the race. If you so much as lightly tap the punch on the inside of the race, it could ruin it. Install it in the bottom section of the frame.  
Be very careful to hit only the outside of the race. If you so much as lightly tap the punch on the inside of the race, it could ruin it. Install it in the bottom section of the frame.  
Install the top race(#99-3504) in the steering head in the same way.
Don't install the races upside down. This is impossible with oem parts and should be apparent with the tapered bearings. These diagrams show the taper of the bearing and race. The race fits into the stem (frame), and then the bearing fits into the race.
Top bearing/race orientation:
\ /    bearing
|\  /|  race
|    |  stem
Bottom bearing/race orientation:
|    |  stem
|/  \|  race
/ \  bearing




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'''<<< I don't understand this mess at all. >>>'''


'''<<<Is a race pounder necessary? What are the alternatives?>>>'''
, noting that the bottom race looks like this: |/ \| and the top like this: |\ /| when installed. Larger side towards the outside of the tube, which is down for the lower one, and up for the upper.


I use a race pounder as it's far easier and insures an equal install in its slot.


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[:>Bob He's saying the top install is identical to the bottom while adding a caution to




'''<<< I don't understand this mess at all. >>>'''
Hopefully that makes it clearer but I can't imagine anyone needing it clarified..... ]
 
Do the same for the top race(#99-3504), noting that the bottom race looks like this: |/ \| and the top like this: |\ /| when installed. Larger side towards the outside of the tube, which is down for the lower one, and up for the upper.  




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