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Late 70s Peugeot PX10 Find

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Late 70s Peugeot PX10 Find

Old 05-15-19, 12:03 PM
  #26  
SB_Greg 
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Originally Posted by vintagerando View Post
Doesn't the steel wool remove the finish?
This method is only for nonanodized aluminum parts.
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Old 05-15-19, 12:26 PM
  #27  
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Stronglight 49, 93 & 99 Polished Cranks

Originally Posted by vintagerando View Post
@verktyg In the above photo of the Mod 93 cranks, you mentioned they are "polished". How do you get them to look this good? What do you use?
Those model 49, 93 and 99 Stronglight cranks came that way new from the factory.

Because they were not anodized, the surface of the aluminum can corrode fairly deep which makes polishing a lot of work.

In cranks or any other bike component with an uneven gray corroded surface, it's probably easiest to start with some "wet or dry" silicon carbide sanding paper like that used in auto body shops. For really bad corrosion, start with 120 or 240 grit and then go up to finer grits from there. Use with water for faster cutting action.

Once you get under the corrosion you can switch to maroon or light gray Scotch Brite, steel wool or what have you then follow up with metal polish. I like SemiChrome for this.

You can polish the parts on a buffing wheel but you can easily remove too much material.

BTW, steel wool is about 38 to 48 Rockwell C hardness. The chrome on a plated surface is about 80 Rockwell C. The surface of anodized aluminum is over 93 Rockwell hardness (usually at a depth of .001" to .005").

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Last edited by verktyg; 05-15-19 at 05:16 PM.
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Old 05-15-19, 12:33 PM
  #28  
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thanks for the knowledge @verktyg
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Old 05-18-19, 05:23 PM
  #29  
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The cartridge bottom bracket arrived today so reassembly began.






Last edited by SB_Greg; 05-19-19 at 09:55 PM.
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Old 05-18-19, 06:30 PM
  #30  
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Originally Posted by SB_Greg View Post
Yesterday I drove about an hour north and purchased a hard luck case 1977-1979 (based on headbadge--the serial number plate has been removed) Peugeot PX10. The bad news is the right chrome fork has rust damage and the frame has been resprayed black (originally white). The good news is it is my size and it came with a number of perks including a Simplex seat post (anyone know what kind this is?), a drillium version of a Stronglight 49D crankset, Zeus pedals, gold anodized Mafac brake calipers, and a few other tidbits of interest. I also got it for $50.00. I will soak the frame and a few other parts in a rust bath. I tried to use nail polish to remove some of the spray paint to no effect. I have some stronger acetone at work I will try and if that doesn't work I will have to come up with some other plan for the finish. It could be I will turn this into some kind of a commuter.


As purchased


disassembled


1977-1979 headbadge


I bought the bike for this crankset and it will shine up nicely.


I love these!


Anyone know what kind of Simplex seat post this is?


You know you are in for it when the freewheel looks like this!
Do we have the same model?? https://imgur.com/gallery/D2FRFFq
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Old 05-18-19, 06:52 PM
  #31  
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I think yours in newer.
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Old 05-19-19, 07:09 AM
  #32  
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Very impressive restoration so far!

I just picked up an example of Chas.'s admonition, "A fully painted frame that should have chrome plating, especially on the 'socks' - the lower parts of the forks and stays - is frequently an indicator that the chrome was rusted." This was an N+1 frameset/project I didn't really need (second Capo Sieger), but I low-balled the seller, and he surprised me by accepting my offer. This originally had half-chrome forks and stays and chromed head lugs. Since the repaint is pretty decent, I plan simply to add decals and have my wife (a talented artist) paint the small head lug cutouts red to match the rest of the head tube, per the original. I debated painting the originally chromed areas silver, but that often looks tacky, so I think I'll pass. My other Sieger has its chrome and original components, so this one will be a resto-mod, anyway, with 1980 Stronglight cranks, cartridge BB, 1970s SunTour barcons, 1973 Brooks Pro saddle, aluminum (Campag.?) seatpost, rest TBD.
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Old 05-19-19, 02:48 PM
  #33  
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Cool frame!
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