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02-22-2009, 02:13 PM
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#1
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Moderator Emeritus
Join Date: Feb 2004
Location: minnesota
Posts: 13,228
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bike pedals
I have a bicycle that I want to switch pedals. The pedals that are on there have not been on long, they were put on by my bicycle mechanic. Anyway, I want to put the old ones back on but I can't get the new ones off.
I believe that I have the right tools. On one side goes a hex wrench. I have the proper size. The other side a number 15 metric wrench. But I can't turn either. Were they torqued down too hard? Am I missing something obvious? Am I a real woman or am I a wimp?
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02-22-2009, 02:16 PM
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#2
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Thinks s/he gets paid by the post
Join Date: Jun 2006
Location: Central, Ohio, USA
Posts: 2,635
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Left hand threads - you may be trying to turn them in the wrong direction. Once you figure which way just put the wrench on them, grit your teeth, and whack the wrench with a hammer. Watch out the wrench does not fly off - that is how the lady lost the wrench on the space station.
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Vietnam Veteran, CW4 USA, Retired 1979
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02-22-2009, 02:22 PM
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#3
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Moderator Emeritus
Join Date: Feb 2004
Location: minnesota
Posts: 13,228
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If I remember correctly, on bike pedals you always turn the wrench to the rear to loosen them. Am I right?
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No more lawyer stuff, no more political stuff, so no more CYA
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02-22-2009, 02:38 PM
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#4
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Thinks s/he gets paid by the post
Join Date: Jun 2006
Location: Central, Ohio, USA
Posts: 2,635
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Yes, besides you may be able to verify that by looking to see if a thread or two are showing inside of the sprocket side of the crank. Got any penetrating oil (think your mentioned you Dad used WD 40 or Kerosene)? If you do soak them overnight with a rag wrapped about them to keep the PO working.
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Vietnam Veteran, CW4 USA, Retired 1979
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02-22-2009, 02:46 PM
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#5
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Recycles dryer sheets
Join Date: Apr 2006
Location: Hardscrabble Texas
Posts: 372
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Quote:
Originally Posted by Martha
If I remember correctly, on bike pedals you always turn the wrench to the rear to loosen them. Am I right?
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Yes. Since the right pedal has a right hand thread and the left pedal has a left hand thread you are correct. The ends of the threaded studs are usually stamped with an "R" and "L" or "RH" and "LH".
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.....#.....
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02-22-2009, 03:06 PM
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#6
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Moderator Emeritus
Join Date: Feb 2004
Location: minnesota
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Ef. I just can't get them loose. Yeah, they are stamped "L" and "R."
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No more lawyer stuff, no more political stuff, so no more CYA
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02-22-2009, 03:08 PM
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#7
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
Join Date: May 2008
Posts: 6,506
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Have you tried a bigger hammer?
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There must be moderation in everything, including moderation.
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02-22-2009, 03:10 PM
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#8
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Moderator Emeritus
Join Date: Feb 2004
Location: minnesota
Posts: 13,228
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My sister just said that I have to swear at it and throw it across the room before I can get the pedals off.
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02-22-2009, 03:16 PM
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#9
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
Join Date: Jun 2006
Posts: 12,880
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This is a common problem. The trick is getting things stabilized so that you can apply a lot of pressure. It's best to have the wrench and crank oriented so you can squeeze them together, but that's not always possible. You might need a second person to put his/her foot on the opposite pedal to keep things from moving.
Here are some links ("LBS" = "Local Bike Shop"):
Pedals too tight to remove (help!) - Bike Forums
Cannot remove pedals - Bike Forums
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Al
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02-22-2009, 03:32 PM
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#10
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
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I'd try some penetrating oil on the threads - apply it from both sides and let it soak in over night. If that doesn't work a propane torch helps if you heat the crank around the pedal thread. (old paperboy)
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02-22-2009, 03:32 PM
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#11
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Moderator Emeritus
Join Date: Feb 2004
Location: minnesota
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Looks like a pedal wrench is going to be my new tool. I am a little afraid of the propane torch idea.
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No more lawyer stuff, no more political stuff, so no more CYA
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02-22-2009, 04:00 PM
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#12
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Dryer sheet aficionado
Join Date: Feb 2009
Location: close to BC
Posts: 27
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You can use a cigarette lighter ... but they get hot to your thumb really fast
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02-22-2009, 04:20 PM
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#13
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Full time employment: Posting here.
Join Date: Jan 2006
Posts: 899
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Quote:
Originally Posted by Martha
Looks like a pedal wrench is going to be my new tool. I am a little afraid of the propane torch idea.
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I have a pedal wrench but I still had trouble getting mine off once. (It's not just you!)
I took it to my LBS (local bike shop) and the mechanic brought out a really big pedal wrench and got them off. My experience is that the mechanic will usually do this sort of stuff for free.
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02-22-2009, 04:42 PM
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#14
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Moderator Emeritus
Join Date: Feb 2004
Location: minnesota
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I decided that I will go down to the bike shop tomorrow. It is two blocks away. I'll have the guy take off my pedals and I'll probably get the wrench unless it is too pricey.
I am glad to hear that it isn't just my wimpitudiness.
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No more lawyer stuff, no more political stuff, so no more CYA
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02-22-2009, 05:47 PM
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#15
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Thinks s/he gets paid by the post
Join Date: May 2005
Location: Portland
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LBS is your friend. Take some cookies. They like cookies
(I've done it)
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02-22-2009, 05:56 PM
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#16
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Thinks s/he gets paid by the post
Join Date: Nov 2005
Location: North of Montana
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Quote:
Originally Posted by travelover
If that doesn't work a propane torch helps if you heat the crank around the pedal thread. (old paperboy)
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Us old-car guys like oxy-acetylene, get it red hot.
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There are two kinds of people in the world: those who can extrapolate conclusions from insufficient data and ..
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02-22-2009, 07:07 PM
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#17
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
Join Date: Mar 2007
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Quote:
Originally Posted by kumquat
Us old-car guys like oxy-acetylene, get it red hot.
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True. I was thinking it might be a stretch for Martha to own a propane torch.
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02-22-2009, 07:12 PM
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#18
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
Join Date: Jun 2002
Location: Texas: No Country for Old Men
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Numbers is hard
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02-22-2009, 08:09 PM
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#19
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Moderator Emeritus
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No more lawyer stuff, no more political stuff, so no more CYA
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02-22-2009, 11:49 PM
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#20
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Thinks s/he gets paid by the post
Join Date: Jul 2005
Location: Los Angeles area
Posts: 1,708
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To remove a really stubborn pedal, get a 3-4' length of pipe that barely fits over the wrench handle, positioned somewhat above horizontal, put a big guy at the end of the pipe. If 1000 ft-lbs of torque do not loosen the connection, you will probably need to replace the whole crank arm.
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