my Peugeot if falling apart!
08-22-04, 07:32 PM
#1
feros ferio
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Bikes: 1959 Capo Modell Campagnolo; 1960 Capo Sieger (2); 1962 Carlton Franco Suisse; 1970 Peugeot UO-8; 1982 Bianchi Campione d'Italia; 1988 Schwinn Project KOM-10;
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my Peugeot if falling apart!
On the oldroads.com / vintage lightweights forum, I posted a tip for salvaging a crank with a worn spindle eye: grind a couple of mm off the back surface, around the spindle eye, to restore clearance with the BB cup. That was last week's problem with my PKN-10. This morning, when I got to my destination and started to lock up the bike, I noticed some torn cords in the rear tyre sidewall, and the first hints of a telltale bulge. The tyre is a 700Cx28 Specialized Armadillo Turbo, probably close to 4 years old. Not wanting to take any chances, this afternoon I bought a new Continental Ultra 2000 for the front, and moved the front tyre, also a Specialized Armadillo, to the rear. I also found the source of my annoying and disturbing drivetrain click and pop sound: one of the rollers on my chain had either worn or broken off, so that the inward protrusions of the inside link plates were contacting the chainring and cog teeth. This is the first time I have ever encountered this problem, and I am trying to figure out the failure mechanism. My best guess is that this particular roller seized (or perhaps never did turn freely) and gradually wore down, until it broke, but this sounds a bit unlikely. I have been using White Lightning or RaceDay; is the lubrication inadequate?
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"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
08-23-04, 05:23 PM
#4
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Originally Posted by John E
On the oldroads.com / vintage lightweights forum, I posted a tip for salvaging a crank with a worn spindle eye: grind a couple of mm off the back surface, around the spindle eye, to restore clearance with the BB cup.
For the uninformed: Do not try this at home!...or in a shop!... as it weakens the crank. Install your crank with a torque wrench (that you can buy for less than the cost of a replacement crank) and your arms should last a loooong time.
08-23-04, 09:08 PM
#5
feros ferio
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Originally Posted by don d.
I had wondered why you experienced so many crank failures as you have cited in your past posts. Now I know.
For the uninformed: Do not try this at home!...or in a shop!... as it weakens the crank. Install your crank with a torque wrench (that you can buy for less than the cost of a replacement crank) and your arms should last a loooong time.
For the uninformed: Do not try this at home!...or in a shop!... as it weakens the crank. Install your crank with a torque wrench (that you can buy for less than the cost of a replacement crank) and your arms should last a loooong time.
The only reason I had to do this was that the original owner had evidently ridden with the crank too loose. I agree with your advice -- protect your cranks by using a torque wrench.
__________________
"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
