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Colnago Master Olympic time capsule

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Colnago Master Olympic time capsule

Old 11-13-18, 07:16 PM
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Kars
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Colnago Master Olympic time capsule





The brown rust bloom


I bought the Master Olympic not long ago. This bike was not used or ridden for about 20 yrs and hung in somebodies garage. I think it is a í93 but others in the Forum may know better. Anyway this bike looks like it was hardly ridden at all and the paint and components are in fabulous condition and really looks in many ways like it was in a time capsule. There is only one small spot under the top tube that needs some touch up but other than that the paint is in great shape. The components also are in great shape and all Shimano 600 series. Weighs 21.3 lbs without pedals. However the chrome is where I really need help and advice. It looks great and shiny from a distance but when you look close it has bloomed light rust like specs that you donít feel on the surface but you can see in the light at a certain angle. I tried capturing this in the pictures but the rust specs look white in the light which they are not. The specs are light brown/coppery in color and NOT white. They turned white when I shined the flashlight on the surface to try and photograph the problem. I have tried simichrome, Aluminum foil+water, Aluminum foil+coke, 0000 steel wool and WD40 and none of these things did anything at all to take this off. I also tried Evaporust on the fork tip for several hours to see if that would do anything but I did not see any difference although I did not soak it overnight. Do I need a more aggressive rubbing compound or something else to get this off ? Should I just live with it and forget it or paint over the chrome ? Has anyone seen this problem before ? I have seen rust on chrome but this is different from what I have seen in the past on other bikes. I am frustrated because the bike is so darn perfect in every other aspect except this brown/yellowy specs on the chrome surface. Any advice is greatly appreciated and thanks in advance
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Old 11-13-18, 07:52 PM
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Might there be a clearcoat paint over the chrome??
If there is, you might be able to remove the clearcoat just at the chromed areas affected and then be able to polish out that "bloom".....
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Old 11-14-18, 06:25 AM
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Colnago

Originally Posted by Chombi1 View Post
Might there be a clearcoat paint over the chrome??
If there is, you might be able to remove the clearcoat just at the chromed areas affected and then be able to polish out that "bloom".....
nago
I don't think there is a clear coat over it. Not sure how to tell.
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Old 11-14-18, 06:30 AM
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Nice Master. You may also test rubbing an area with Barkeepers Friend to see if that helps - it has oxalic acid and a mild abrasive. I use it on parts that have some crust that other methods have a little trouble getting under, and I've used it on chrome with no problems. I've had some cases of freckled chrome but so far have always been able to deal with it.
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Old 11-14-18, 06:43 AM
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I watched that one on the bay for a long time. Glad someone here bought it. I was tempted several times, but the Shimano 600 stuff on a Colnago really didn't do it for me.
Have any more pics of the (what looks to be a) Wilton bullet vise?
Regarding the spotting/rust: you might not be able to eliminate it. Perhaps something to consider would be to eliminate any rust (evaporust, aluminum foil, like you mentioned you tried), and then clearcoating just that area so it doesn't get any worse.

Last edited by hazetguy; 11-14-18 at 06:50 AM.
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Old 11-14-18, 05:15 PM
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Originally Posted by PilotFishBob View Post
Nice Master. You may also test rubbing an area with Barkeepers Friend to see if that helps - it has oxalic acid and a mild abrasive. I use it on parts that have some crust that other methods have a little trouble getting under, and I've used it on chrome with no problems. I've had some cases of freckled chrome but so far have always been able to deal with it.
thanks pilotfishbob, I will try the barkeepers friend as you suggested. Supposed to snow tomorrow but will try and pick it up at lowes . I will post after I try it to let you know if it worked.
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Old 11-14-18, 05:32 PM
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Originally Posted by Kars View Post
thanks pilotfishbob, I will try the barkeepers friend as you suggested. Supposed to snow tomorrow but will try and pick it up at lowes . I will post after I try it to let you know if it worked.
Hope it helps - Use a wet cloth and pour some on, it's pretty safe to rub in hard but test a small area first. On pits I sometimes use it with a toothbrush to get in there. Of course, everyone has a secret sauce for corrosion. I also use aluminum foil, soaking in oxalic acid or EvapoRust as my other methods depending on the part and what and how bad the issue is. Barkeepers is also great to clean up old steel rims and remove the oxide from alloy rims prior to polishing with Autosol (best polish ever - IMO)

We got sleet and snow here in Memphis today, more on the way tonight. Great weather for hanging out in front of the fireplace and drinking.
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Old 11-14-18, 06:25 PM
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Originally Posted by hazetguy View Post
I watched that one on the bay for a long time. Glad someone here bought it. I was tempted several times, but the Shimano 600 stuff on a Colnago really didn't do it for me.
Have any more pics of the (what looks to be a) Wilton bullet vise?
Regarding the spotting/rust: you might not be able to eliminate it. Perhaps something to consider would be to eliminate any rust (evaporust, aluminum foil, like you mentioned you tried), and then clearcoating just that area so it doesn't get any worse.
Clear coating will be a last resort if nothing else works. I prefer to polish it out.
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Old 11-14-18, 06:49 PM
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Originally Posted by PilotFishBob View Post
Hope it helps - Use a wet cloth and pour some on, it's pretty safe to rub in hard but test a small area first. On pits I sometimes use it with a toothbrush to get in there. Of course, everyone has a secret sauce for corrosion. I also use aluminum foil, soaking in oxalic acid or EvapoRust as my other methods depending on the part and what and how bad the issue is. Barkeepers is also great to clean up old steel rims and remove the oxide from alloy rims prior to polishing with Autosol (best polish ever - IMO)

We got sleet and snow here in Memphis today, more on the way tonight. Great weather for hanging out in front of the fireplace and drinking.
thanks for the advice and information. Unfortunately the aluminum foil did not work and so I will be trying the bartenders friend you suggested.
Hopefully I can bring this Colnago chrome back. It will be worth it.
Sound s like the same snow storm we will get here in PA tomorrow mornin at some point.
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Old 11-14-18, 07:02 PM
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Good old fashioned Turtle Wax chrome cleaner can't be beat. If that doesn't take off the speckling. Live with it. Using more aggressive treatments will just scratch the chrome and make it look foggy.
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