Bikeguide.org - Bike maintenance for BMX'ers
The Street => The Bike Shop => Topic started by: Prodigal Son on September 30, 2016, 08:50:26 PM
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I just got new cranks. I have premium pedals in my old cranks which only have an Allen broach, no wrench flats. Making an obtuse triangle doesn't work as well as it does with a pedal wrench to stomp on and break the pedals loose. I sprayed some wd40 in the pedal bosses hoping to loosen them. What other technique might I employ to maintain my sedentary lifestyle?
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tried using something to extend the reach on the allen key like the ring end of a spanner or an old seatpost?
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Use a hammer. I've beaten wrenches with a rubber mallet a few times to loosen stuck bolts.
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Yea, I extended the leverage on it. The Allen wrench was already long and I had an extra peg near by I was using for the sake of that 6mm width straining against my palm. Still nothing.
Sorta hard to hit an Allen and direct the force entirely perpendicular to the threads.
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Try using an allen key on a socket wrench
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Get new cranks.
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Try using an allen key on a socket wrench
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(http://www.consolidatedtools.com/WebRoot/GroupNBT/Shops/s3zpvuf584b3/4F0D/B8DF/8603/7B22/3770/0A0C/05E8/642C/KOK3010M-62SE11.JPG)
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Get new cranks.
Haha I got new cranks, I want my premium pedals back from the old motherfuckers! In the interim, I've got Rubens on.
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You sure you're turning it the right way? Years ago this happened to me only to realize I was turning the reverse threaded Left side pedal the WRONG way!
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I made sure by placing it next to my new cranks with pedals in and observing the rotation.
Also, seems like there is too much play for the 6mm.
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As a last resort you could try and switch your crank arms over and ride the pedals backwards (switch over the pedal bodies too) for a while, might loosen up after a few sessions.
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allen key broaches in pedals are pretty shit. usually you cant get the leverage to shift a seized pedal without rounding something out. only really useful for tightening your pedal if it comes loose when out riding (cos noone ever carries a 15mm spanner and you cant get an adjustable spanner/shifter onto the flats on most pedals (except jcpcs cos theyre the best...and a few other pedals)).
only having a 6mm allen key broach on the axles is a pedal design fail
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Pedals don't need to be done that tight anyway. Just use some blue loctite on the threads and tighten it a reasonable amount with the 6mm allen. Should be good after that.
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Another old trick is to throw the crank arm in the freezer for a hour. Cold makes metal contract, which sometimes can assist loosening a tight bolt.
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I wish the market for bmx could sustain using torx. My Volvo has them all over the place and I love em.
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i've recently read about people heating up the contact area and dripping candle wax onto it - the idea is that the heat would suck the wax into the threads hence help lubricating it.
i haven't read extensively about it, and i haven't seen it work myself. it seems an inferior option vs. soaking in WD-40 overnight.
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Spit on it
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Last week my car got a flat tire. I went replace the wheel with the spare tire but apparently the lugs had been tightened by the Hulk. After a bottle of WD40 and a few hours I was finally able to loosen the lugs and change the tire. I guess my point is try WD40. I wasn't expecting it to work but it got the job done.
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I used both allen key and flat wrench if possible. worked all few times i tried. be careful with hands.