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Author Topic: striped crankshaft?  (Read 2208 times)

customx22

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striped crankshaft?
« on: February 08, 2010, 06:15:23 AM »
what can i do if i striped my crank shaft?
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wordslinger

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Re: striped crankshaft?
« Reply #1 on: February 08, 2010, 11:37:35 AM »
..buy a new one.. ;D
« Last Edit: February 08, 2010, 06:04:46 PM by wordslinger »
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zombie

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Re: striped crankshaft?
« Reply #2 on: February 08, 2010, 03:59:49 PM »
What exactly is striped? I have run a die over the crank ends in the past w/ very good results.
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customx22

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Re: striped crankshaft?
« Reply #3 on: February 09, 2010, 01:54:34 AM »
ok i ran the die over with a snap-on die 12mm 1.25 and it worked great.im never using an impact gun on that crank again.i use all hand tools now.
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zombie

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Re: striped crankshaft?
« Reply #4 on: February 09, 2010, 02:42:04 AM »
The nuts on both ends of the crank are supposed to be "capture" nuts, meaning they have a slight deformity in their shape. Although you cannot thread a new nut on by hand, an impact should not be used. ( as you pointed out). Glad you got it sorted out though. In a pinch if a new nut is not available a little dab of blue lok tite should be used.
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"They have nothing in their whole imperial arsenal that can break the spirit of one Irishman who doesn't want to be broken."   Bobby Sands...

wordslinger

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Re: striped crankshaft?
« Reply #5 on: February 09, 2010, 05:46:33 PM »
..i've always been afraid of using impact wrenches on my scoot...i've seen the damage they can do in other applications when not used correctly..


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customx22

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Re: striped crankshaft?
« Reply #6 on: February 17, 2010, 09:17:30 AM »
wordslinger how do you torque down you crankshaft nut? what do you use to hold it in place?
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wordslinger

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Re: striped crankshaft?
« Reply #7 on: February 17, 2010, 11:37:41 AM »
...I use a pair of vise-clamps...they spread apart just far enough, with the adjusting screw backed out...clamp them aroung the teeth of the flywheel, and just prop them against a piece of 2 X 4 on th floor...use a 1/2" drive 17mm socket and ratchet on the nut...it's all I had handy the first time I ever opened the cvt, but it works ok...and it was FREE!!..

..I'm a maintenance supervisor...I've seen soo much damage done to stuff by impact wrenches used improperly...Don't like the idea of all that pounding force being introduced into my engine either..
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customx22

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Re: striped crankshaft?
« Reply #8 on: February 17, 2010, 09:09:56 PM »
do you use a torque wrench to torque down? what do you torque them too?
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wordslinger

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Re: striped crankshaft?
« Reply #9 on: February 18, 2010, 11:42:36 AM »
...i have a torque-o-matic elbow... ;D :D :o ;D
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Shaka

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Re: striped crankshaft?
« Reply #10 on: February 19, 2010, 11:50:33 PM »
The manual calls for 5.5-6.5 kgf/m which equals about 40-47 lbs/ft.  I use a cordless impact gun on mine.  It is relatively weak at a rated 85 lbs/ft.  I just use this to re-install the nut.  I don't sit there and drive the crap out of it, but I get it on there pretty good!  I have never had any problems with the threads even coming close stripping, I did strip one of the nuts trying to get it off the first time though!  It was obviously on tighter than that before!
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blue

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Re: striped crankshaft?
« Reply #11 on: February 21, 2010, 03:09:02 AM »
ya its ok to use impact to take off but use the old elbow to put back on. you can make tools for this
 or get theam at your  motorcycle shop.
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