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Old 07-11-14, 06:12 AM   #1
randomguyy
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Order of bearings in Peugeot PSN-10 Headset/Fork?

Hi,

Rookie here. Was taking apart a 1985 PSN-10 bike to clean parts and lost order of bearings/pieces between handlebar and fork. I've put it back together and it appears to be ok (and I even rode for a few miles) but I'd prefer not to kill myself or ruin the parts over time due to bad installation. Anyone know where I can find an exploded view or some sort of instructions detailing the order in which I should connect the parts?

Thanks.
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Old 07-11-14, 06:22 AM   #2
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This is pretty much the standard order for any quill-type stem. The most common mistake is installing the bearing retainer upside down. ( I think most people prefer loose balls to the bearing retainers though. )

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Old 07-11-14, 07:16 AM   #3
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This is pretty much the standard order for any quill-type stem. The most common mistake is installing the bearing retainer upside down. ( I think most people prefer loose balls to the bearing retainers though. )

Whoa thanks. So one of the differences is i seem to have 4-5 of those seal pieces. Half are large half are medium. A couple are near crown and I ended up stacking 3 together under the headtube race
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Old 07-11-14, 08:44 AM   #4
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You don't have roller bearings, do you?
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Old 07-11-14, 08:52 AM   #5
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You don't have roller bearings, do you?
I have these 2 things which I ended up stacking on each other separated by a washer on the fork side... which I'm now thinking is incorrect. I don't see any actual balls as shown in the image above.

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Old 07-11-14, 09:05 AM   #6
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Did you even try google or Velo Orange???

http://velo-orange.blogspot.com/2009/12/threaded-headset-basics.html


Park Tool Co. ParkTool Blog Threaded Headset Service
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Old 07-11-14, 09:15 AM   #7
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Yup. In fact, used both of your suggestions (on top of other websites) last night when putting it back together but they're more of a general overview versus exactly what my bike has Thanks for the response.
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Old 07-11-14, 09:27 AM   #8
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MYSTERY SOLVED, I hope this helps someone someday:

The Retrogrouch: Roller "Needle" Bearing Headsets - Shows an exploded view of the Stronglight A9 headset. The PSN-10 came with a Stronglight B10 (which apparently is just the composite version of the A9 anyway!).

VeloBase.com - Component: Stronglight B10 Bernard Hinault (Stronglight B-Hinault on locknut) - Additional detail

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Old 07-11-14, 10:31 AM   #9
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You answered your own question. Nice work!
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Old 07-11-14, 10:42 AM   #10
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Roller bearings. The single best improvement in head set design in the last 50 years, IMO. Too bad more sets didn't have them.
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