sprocket change- can't get the big nut off!!! Help!!! - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 58 Old 03-29-2008, 03:08 PM Thread Starter
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sprocket change- can't get the big nut off!!! Help!!!

Swapping the 15t to a 16t. I've got the sprocket washer bent back away from the nut face, new Harbor Frieght 1/2 drive impact gun running is lefty-loosy mode, air pressure set at 90psi (max per gun, which claims to torque to 250 ft lbs), gun running in it's highest power setting (1-4, set on 4) and that darn nut will not even budge. Run and run and run and run...

Tranny is in neutral, but the wheel is held in place up off the ground (centerstand) by a block of of wood, so the tire isn't spinning at all.

Thoughts?

Tried the socket wrench version last night, not effective either.

Until I get some info, I'm heading for the lowering link install part of my day.

Thanks.

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post #2 of 58 Old 03-29-2008, 03:17 PM
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Hmmm. Got mine off with the same gun. Is it full on reverse mode? Sometimes if you don't get the lever all the way over, it won't get full power to the gun.

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post #3 of 58 Old 03-29-2008, 03:19 PM
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post #4 of 58 Old 03-29-2008, 05:02 PM Thread Starter
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Thanks guys, will recheck the gun direction lever (free spins counter clockwise) and will just set on center stand without the wood under the tire (between tire and floor). I'll report back.

Steve.
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post #5 of 58 Old 03-29-2008, 05:32 PM
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Red Loctite is applied. Get out the torch. You need to heat it and use the impact wrench while still hot.

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post #6 of 58 Old 03-29-2008, 07:59 PM
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Air tools is something it pays not to skimp on. I've had harbor freight air tools and the ones I've had are a joke.

My 1/2" drive Chicago Pneumatic impact took that nut off like nobody's business, red loctite or not. My harbor freight cut-off wheel stops turning if it even thinks it's close to the work surface.

I think I paid around $100 for my impact, well worth it.

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post #7 of 58 Old 03-29-2008, 08:15 PM Thread Starter
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Quote:
Originally Posted by greywolf View Post
Red Loctite is applied. Get out the torch. You need to heat it and use the impact wrench while still hot.
Quote:
Originally Posted by Bisbonian View Post
Air tools is something it pays not to skimp on. I've had harbor freight air tools and the ones I've had are a joke.

My 1/2" drive Chicago Pneumatic impact took that nut off like nobody's business, red loctite or not. My harbor freight cut-off wheel stops turning if it even thinks it's close to the work surface.

I think I paid around $100 for my impact, well worth it.
Heat- got it.

Well, my Chicago Pneumatic version cost me a whopping $19. Will try the heat tomorrow. If that doesn't do it, then I'll take it back and swap for another.

Steve.
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'18 DL650XT, previously '07 DL650 and others
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post #8 of 58 Old 03-29-2008, 08:22 PM
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SteveT, I used the cheapest Lowe's Kobalt 1/2" drive impact wrench, but it was rated at 350 ft lbs. Tranny was in neutral, bike on centerstand, rear wheel chocked with a long piece of round stock between the spokes and resting on the swingarm. Mine was Red Locktite'd on, but the countersprocket nut spun right off when I pulled the trigger.

I hope you don't need heat, but if you do, be precise and wrench it while it's hot.

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post #9 of 58 Old 03-29-2008, 08:56 PM
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I've never done this myself, but a couple of comments:

1) I'd be careful with putting heat to that part - the countershaft seal may not care for it.

2) If this is the factory sprocket, it may have some threadlocker on it, but just because it's red doesn't mean it's red Loc-tite. The factory uses a threadlocker which is red but comparable to Loc-tite's blue stuff. It can be broken loose without using heat. Permanent threadlocker is usually only used on crucial engine internals.

Have you tried a big 'ol freakin' breaker bar on it?
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post #10 of 58 Old 03-29-2008, 09:01 PM
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I agree, don't use the torch. Use a better impact gun with at least 125 psi. Mine came right off.

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