repechage

These look the part:

https://www.ebay.it/itm/134714598558...Bk9SR7rX_IiPYw

these are probably later production, I think ignore the packaging, the strap is laminated like an Extra which did not arrive to the USA till late 1974.
those Extras were only in bone white.
the rollers were brass.
these straps have a plastic roller.
The stampings are pretty accurate, a seller out of the UK has examples with the more traditional color, but the foil stamping is odd.
way back the logo was just embossed, no foil.

ACHiPo 

Robert,
What about something like this for finding the 4th ball?
https://www.harborfreight.com/heavy-...hoCBZQQAvD_BwE

ollo_ollo

Nice payoff for those years of patience. Looking forward to finish the build and a ride report. Don

Robvolz 

I like your thinking but didn't pursue that route for the following:

The cookie-making/ball-losing good-time happened after 8pm, after the harbor freight closed.

If the ball rolled off the porch, its in the front lawn somewhere, or in one of the potted plants along the stairs. Or under firewood. That's a lot of area to cover.

Merziac taught me to never use a magnet to keep your BBs from flying about because once magnetized, they pick up metal shards and the races don't last as long.

My bike frame-building friend Bob laughed at me when I retold the story. "What, are there little '<c>s' stamped on them?" and "don't you think BB technology has improved since 1974?"

PS: Sweetie's wheel is still short one.

ACHiPo 

Good points. I’m with Bob—I strongly suspect any good quality ball bearing of the right diameter will work.

tgot 

Forgive my ignorance, but is Sheldon's advice to always use balls from the same batch no longer relevant with modern manufacturing?
​​​​https://www.sheldonbrown.com/tooltips/hubs.html

repechage

reasonable advice. Basically how dedicated or thrifty are you?
on some boxes of Campagnolo headsets and bottom brackets there was an add on stamping declaring the ultra precision of the bearings used, sometimes with SKF logo.

buy bearings from a reputable source.

merziac

This too, and also mainly the balls will stick to each other, the races, fail to rotate properly and wear unevenly along with the cups/races.

I would quickly get a full set of new higher precision from McGuire bearing or maybe CK and save the old ones for posterity.

Also while Bob's right, ball bearing tech has gone backwards with worldwide mass production but the lubrication and application tech has improved greatly so as to negate some of it.

Several years ago NASA commissioned Chris King to see about the feasibility of making very high precision ball bearings that had gone away and could find no one that would even try as most all suppliers had gone to lower standards.

CK got it done but it was too expensive so NASA figured something else out.

merziac

Yes and no, this so they will all be the same as they can but, maybe no as the standards have gone down since Sheldon has weighed in.

Slippery slope and may not matter that much at the end of the day but I wouldn't want to take a chance with nice Campy hubs.

merziac

And while we're at it, NEVER use WD-40 to clean or lube any bearings, ever, period.

Unless you thoroughly clean them again with thinner, brake or carb clean, acetone, etc, etc.

It can prevent grease from doing its job at the micro level.

repechage

way back if a hub or pedal was smooth but a repack was sensible, rain exposure, etc, the old mechanics tale was to keep the bearings on the same side as upon disassembly.

merziac

But what if you put them back in backwards or upside down?

repechage

‘the rear hub was easy enough, the front needed to be tagged to keep the space time, dimensional continuum in order.

merziac

And another thing, the balls should be greased again immediately after stripping to thwart corrosion, also at the micro level.

I usually massage them with a dab of grease after any thorough cleaning.

TenGrainBread 

This reminded me of a pic from Norris Lockley's (RIP) flickr account:
Old 50s French handmade bicycle he bought.

repechage

The when and if any of that accumulation will be offered for sale?

TenGrainBread 

If an estate sale is ever announced, perhaps the C&V forum can collectively rent a flat in London for easier access...

Robvolz 

Me: hey guys, can I sit here?

Them: get outta here. You can’t eat with us at the “cool kids” table with those brake pad holders.

I want to sit at the cool kids lunch table sooooo bad.

At the co-op, in comes a craptastic department store frame with stamped steel side-pull brakes and pre-1978 campy pad holders.

the pads themselves were shot. But our own Corvallis based “Thin man” had a set of NOS pads for sale.

after an over night soak in the vinegar, the holders cleaned up sparkly.


Wrong wrong wrong



I never noticed the change in nut design before.

Yes!!

Can I sit here now??

repechage

Stainless steel nuts and washers were very late production.

the pads need to be driven / pressed home fully.

repechage

so many, not all are of the size he could ride, pretty common, my guess there will be a metering out of the inventory.

AdventureManCO 

What's sad/funny about this is after I saw that picture, I thought of quoting the post and just saying something like 'wrong brake nuts.' just as a joke and some lighthearted ribbing, being completely clueless as to their accuracy, given the back and forth about timelines and years and dates and period correctness and such in this thread. So I'm currently finding this way funnier that just about everyone else. I was right! But nobody knew, me included

Maybe I'm developing a honed sense of good Campy intuition!

Robvolz 

Just confirming, I have the proper period but/washer on the older pre 1978 brakes pad holders.?

repechage

the front brake showing is a mishmash.
LH holder is late and probably from a subordinate group, no branding on the top, or the tire guide, no plastic. The chrome plated nut and chamfered washer is correct for the era of bike though.
‘the RH side holder- the stainless steel washer and nut is basically 80s Colbalto era, used haphazardly on the Record calipers.
‘the identification stamping on the tire guides started to drop off after the CPSC plastic covered versions. Many did not know unless they removed the plastic. When? Probably when the tool got dull.
by 1987 the Departing groups still had a demand, but Campagnolo was just moving the parts out to make whole assemblies. Probably much to Campagnolo’s dismay.

repechage

Confirm there is the correct washer at the 13mm nut- the kneeling should be facing out.
very very late the washer was smooth both sides but still thicker than the intra-arm washers. If your washer is smooth both sides it is one of the thinner washers or Colbalto.

repechage

note the plain front washer, still thicker than the others.