Save the Frame
01-10-15, 09:56 PM
#1
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Save the Frame
I’m restoring an older Cannondale 3.0 series aluminum frame. I know that with steel frames you want to use Frame Saver or the like on the inside tubes. Does one do anything similar to an aluminum frame? When I pulled the bottom bracket on the Cannondale, there was significant galvanic corrosion that I’d like to avoid the next time around…perhaps just a liberal coating of grease?
01-10-15, 10:41 PM
#2
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Yes, clean and grease maybe chase the threads if it's real bad but grease is good.
01-10-15, 11:44 PM
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Figure out what the corrosion is, and remove it, then Zinc-Chromate primer.
01-11-15, 09:10 AM
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We have a good following of Cannondale Crit lovers here that would like to see your project as it develops. Post up when you can.
01-11-15, 12:52 PM
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Here's a pic of the bb AFTER scraping out most of the corrosion and soaking for a couple of hours in vinegar. My guess is water got into the BB shell and it and the BB reacted. Removing the BB, I broke the tool because it was so frozen in there. On the plus side I was able to source a replacement for the missing derailleur drop out.
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