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Clubroom => Tech Talk => Topic started by: Kenneth S (222) on March 05, 2011, 08:22:22 pm

Title: Bending an alloy gear shift lever without breaking it? What is the procedure?
Post by: Kenneth S (222) on March 05, 2011, 08:22:22 pm
Hi Tech Talkers,
My 79 CR 250 has a stock alloy gear shift lever and it is or has been bent in a bit too close to the casing to be comfortable for me. What is the correct process to bend it out a little without the risk of breaking it? Should I heat it up first or just put it in a vice and bend it cold?
Thanks,
Kenneth
Title: Re: Bending an alloy gear shift lever without breaking it? What is the procedure?
Post by: vandy010 on March 05, 2011, 08:48:38 pm
bend it cold.
clamp it in the vice and give it short sharp blows with the hammer of your choice.
avoid giving it really BIG whacks
Title: Re: Bending an alloy gear shift lever without breaking it? What is the procedure?
Post by: oldfart on March 05, 2011, 08:55:11 pm
NO  heat 
Title: Re: Bending an alloy gear shift lever without breaking it? What is the procedure?
Post by: Kenneth S (222) on March 05, 2011, 09:30:09 pm
Thanks
Title: Re: Bending an alloy gear shift lever without breaking it? What is the procedure?
Post by: matcho mick on March 05, 2011, 10:37:16 pm
how about sitting it on something flat/solid with the curve upward,then hit it with  lump hammer in the middle till it moves!,(i use a press),do it at warm room temperature,not bloody cold,not hot ::),good luck  :P
Title: Re: Bending an alloy gear shift lever without breaking it? What is the procedure?
Post by: Slakewell on March 07, 2011, 07:08:03 pm
Use a vice and a large shifter warm it with a hair dryer or heat gun till it's very warm to touch then use the handle end of the shifter with the hole place it over the shifter and bend.
Title: Re: Bending an alloy gear shift lever without breaking it? What is the procedure?
Post by: Swiss on March 08, 2011, 07:23:43 am
I do remember some comments made years ago on the possibilities of making bent levers straight again.  Seems that the concensus was that the Factory parts were more likely to survive the surgery/pounding than the aftermarket units.  Had to do with the malleability/toughness of the alloys used.  From experience I would agree with that idea and have straightened some factory aluminum units successfully but not had luck with the aftermarket parts.  Most alloys will also work harden from bending back and forth so there is a practical limit to how many times you can fix them without breaking them.

Swiss
Title: Re: Bending an alloy gear shift lever without breaking it? What is the procedure?
Post by: shorelinemc on March 08, 2011, 09:42:00 am
if you have an oxy /accetylene set lightly blacken the gearlever,then gently heat to remove black then straigten then quench