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Classic, Vintage & Veteran For Coventry and Meriden Models. Anything pre-Hinckley goes.

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Old 02-27-2011, 02:28 PM   #1 (permalink)
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T140 Steering Head Bearings

Just finished rebuilding the front forks, now onto the triple tree with new bearings. I hope I got all the necessary parts:



The spacer on the upper and lower has me confused as there were none on the bike, but it did have a lot of play in the steering head. Any tips or suggestions on doing this job?
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Last edited by gaillarry; 02-27-2011 at 02:56 PM.
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Old 02-27-2011, 09:16 PM   #2 (permalink)
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The spacers go in first, then the outer races. Check to be sure the old ones aren still inside. I knock the new races in as far as I can with a brass mallet then stack an old race on the new race, oriented like I was installing it. I drive the new race home by tapping the old race. Once the new race is bottomed, I put a long drift on the edge of the old race and with a few light taps, it falls out. The seal on your upper race looks like the hole in it where the stem nut tightens against the inner race is too small. I think it should be the same size as the hole in the dust cover.
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Old 02-28-2011, 12:03 AM   #3 (permalink)
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Originally Posted by jimmy bush View Post
The spacers go in first, then the outer races. Check to be sure the old ones aren still inside. I knock the new races in as far as I can with a brass mallet then stack an old race on the new race, oriented like I was installing it. I drive the new race home by tapping the old race. Once the new race is bottomed, I put a long drift on the edge of the old race and with a few light taps, it falls out. The seal on your upper race looks like the hole in it where the stem nut tightens against the inner race is too small. I think it should be the same size as the hole in the dust cover.
I do the same, but I put the old races on the grinder around the perimeter just to take a few thousandths off so as they don't get seated too. Learned that from this board!
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Old 11-03-2012, 05:54 PM   #4 (permalink)
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hi all , bearings in my T140 seemed to be tapered am i missing somthing , as i am in the stage of replacing them , tad confused , does the tapered female thats inside the frame top and bottom come out ?? ta koo
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Old 11-05-2012, 07:02 PM   #5 (permalink)
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hi all , bearings in my T140 seemed to be tapered am i missing somthing , as i am in the stage of replacing them , tad confused , does the tapered female thats inside the frame top and bottom come out ?? ta koo
Yes,the outer race in the frame needs to be changed.If the bearings are damaged and need replacing,you will normally find damage on inner and outer races.

The inner and outer have just been fitted together in the photos.
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