Redline 401 crank arms and a vinegar bath? 
#1 2012-12-13 1:11pm
- Eddie11
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Redline 401 crank arms and a vinegar bath?
I just got a set of crank arms with surface rust and the chrome is dull. Would a vinegar bath work on the arms? I hate to ruin the arms. I plan on soaking tonight.
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#2 2012-12-13 2:12pm
- MEFISTO
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Re: Redline 401 crank arms and a vinegar bath?
you can clean them with 0000 steel wool
or vinegar bath for 6hs
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#3 2012-12-13 2:31pm
- Quetzal
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Re: Redline 401 crank arms and a vinegar bath?
MEFISTO wrote:
you can clean them with 0000 steel wool
or vinegar bath for 6hs
Careful - READ as many diy threads as possible before attempting the vinegar bath. Not saying it doesn't work, but if done incorrectly you can really frank up those cranks. Good luck.
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#4 2012-12-13 2:48pm
- Eddie11
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Re: Redline 401 crank arms and a vinegar bath?
I read a lot about vinegar but it gets confusing with everyone's different input
Should I add a lil baking soda. I read this helps or I could be wrong
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#5 2012-12-13 3:16pm
- Eric DeCastro
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Re: Redline 401 crank arms and a vinegar bath?
i use OA bath
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#6 2012-12-13 4:43pm
- Eddie11
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Re: Redline 401 crank arms and a vinegar bath?
I removed it from the vinegar. Don't want to screw them up.
Oh well, it's going on a rider anyways.
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#7 2012-12-13 5:00pm
- NR1
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Re: Redline 401 crank arms and a vinegar bath?
I just did the flights in this pic last week in an OA bath.
They had light surface rust. This is the after pic.
I was very happy with the results.
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#8 2012-12-13 5:05pm
- crsteen
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Re: Redline 401 crank arms and a vinegar bath?
CLR and water.. Mix about 50/50 or you can even go 25% CLR and 75% water.. works great! will not find much on here about CLR but I promise it works. Oh and maybe 4-10 hrs. just keep checking with a scrub brush.
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#9 2012-12-13 5:29pm
- sithlord3
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Re: Redline 401 crank arms and a vinegar bath?
OA bath.
I can't understand why anyone would want an old, scratched up, dirty, dusty bike, when you could go and buy a brand new shiny one.
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#10 2012-12-13 6:27pm
- NOPOSERS
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Re: Redline 401 crank arms and a vinegar bath?
crsteen wrote:
CLR and water.. Mix about 50/50 or you can even go 25% CLR and 75% water.. works great! will not find much on here about CLR but I promise it works. Oh and maybe 4-10 hrs. just keep checking with a scrub brush.
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#11 2012-12-13 10:23pm
- MEFISTO
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Re: Redline 401 crank arms and a vinegar bath?
Eddie11 wrote:
I read a lot about vinegar but it gets confusing with everyone's different input
Should I add a lil baking soda. I read this helps or I could be wrong
the problem is when some ppl leaves 24hs a small piece of metal inside Vinegar
Metal is going DARK, loses the Chrome, it dies.
Frame/Fork/handlebars (BIG PIECES WITH A LOT OF RUST).. u can leave 24hs Bath
frame or fork standers/cranks/seatpost ... with 6hs you are done
small pieces like.. chain/screws/etc... with 1 or 2hours is enough!
NO MORE
anyway..
u can take the part off the vinegar and see if Rust is easy to clean
if not.. u can leave on bath a little more
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#12 2012-12-14 6:50pm
- Johnnny
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Re: Redline 401 crank arms and a vinegar bath?
I have yet to try the OA bath but do plan on it...
Vinegar works quite well for small or completely submerged items. I have found that if you leave a part half way in the area above the surface can get a cloudy appearance from the fumes.
Remember one thing. All of these rust eating methods will eat metal as well so it's important not to leave it for too long.
Baking soda was mentioned above, the reason it will slow down the reaction is because it (and ammonia) neutralize acid.
Lastly, when the parts come out you will want to neutralize the acid. I suggest ammonian and water (about 1 cup a to a gallon of water) let sit for 10 minutes and then spray WD-40 or whatever you like into the holes on the tubes for protection.
Merry Christmas 
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