Do I need to worry about galled threads? - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 12 Old 07-28-2019, 12:42 PM Thread Starter
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Do I need to worry about galled threads?

2009 Vstrom 650, the nut on the rear axle is NOT a castle nut. But it's really tight, so I was hesitant to try to use a longer rachet or wrench.

Is it just likely overtightened and should be fine to use extra force to loosen so I can adjust the chain?

22k miles, chain is basically at the edge or just past tolerance levels.

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post #2 of 12 Old 07-28-2019, 01:51 PM
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Factory spec is 72 ft lbs for the rear axle nut. Use a breaker bar to loosen. If galling has occurred, the usual symptom is that the axle nut starts to loosen, then tightens up like a gnat's a** in a windstorm!

The legendary Greywolf advised applying anti-seize to axle threads and torquing to 58 ft lbs to allow for lubricity.

How loose is the chain? If it is only a bit loose, may be better to leave it alone. The Stroms seem to favor a slightly looser chain and reward the rider with longer chain life.
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post #3 of 12 Old 07-28-2019, 02:45 PM
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Better to have the chain a little looser than spec. I do the 58 foot pound torque and anti-seize thing as well.


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post #4 of 12 Old 07-28-2019, 03:05 PM
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Quote:
Originally Posted by sfalexi View Post
2009 Vstrom 650, the nut on the rear axle is NOT a castle nut. But it's really tight, so I was hesitant to try to use a longer rachet or wrench.

Is it just likely overtightened and should be fine to use extra force to loosen so I can adjust the chain?
Alexi
So your main question is _ Do you Dare crank on it with a 10 foot pipe ....

I'd say
A: do it under conditions that if you F-it up you aren't stranded.
B: If there is no reason not to, get the new chain & sprockets so as to to do it once.

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post #5 of 12 Old 07-28-2019, 06:50 PM
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Is it a stainless steel nut. A regular steel nut shouldn't gall but might be rusted in there. The newer nuts are not castle nuts with a cotter pin. They have metal bands that lock the nut in place. If it is badly galled you will have a damaged axle and /or nut. You could try working in penetrating fluid with a gentle application of heat. When the treads start to move having some lube in there might limit the amount of damage. Be prepared to order new and gasp at the price.
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post #6 of 12 Old 07-28-2019, 08:26 PM
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Put a request for an axle bolt in at the wanted section of the forum. Don't know how it happens. My 04 with 100K still goes on and off like new. It's a castellated nut that uses a cotter pin.
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post #7 of 12 Old 07-28-2019, 09:51 PM Thread Starter
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Thanks for the tips. This will be next weekends little project. It's a little looser than spec (BARELY). Chain looks good, and sprockets look good. But I'll try it out just in case. And I'll be ready to order some stuff off of ebay or something in case the axle needs to be replaced. I'll keep the fingers crossed.

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post #8 of 12 Old 07-29-2019, 08:26 AM
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Quote:
Originally Posted by sfalexi View Post
Thanks for the tips. This will be next weekends little project. It's a little looser than spec (BARELY). Chain looks good, and sprockets look good. But I'll try it out just in case. And I'll be ready to order some stuff off of ebay or something in case the axle needs to be replaced. I'll keep the fingers crossed.

Alexi
When you say BARELY out of spec, are you talking about 1 1/2" to 1 3/4" of slack? If so, I would run it until you are ready for new chain and sprockets. If chain has any frozen links or rear sprocket is worn, would be time to change anyways.

The chance of galling is increased with faster RPM tightening of the fastener...so if your shop loves the sound of a compressed air impact wrench spinning at high speeds, be ready for the possibility!

BTW, I am in W'burg

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post #9 of 12 Old 07-30-2019, 11:10 PM Thread Starter
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Quote:

When you say BARELY out of spec, are you talking about 1 1/2" to 1 3/4" of slack? If so, I would run it until you are ready for new chain and sprockets. If chain has any frozen links or rear sprocket is worn, would be time to change anyways.

The chance of galling is increased with faster RPM tightening of the fastener...so if your shop loves the sound of a compressed air impact wrench spinning at high speeds, be ready for the possibility!

BTW, I am in W'burg

Yeah. BARELY out of spec. Sprocket looks good and no frozen links.

And let me know if you every want to meet up and ride. I'm making an effort to do a lot more riding again, to include ik planning my first all motorcycle vacation this summer (two weeks going from VA to Maine and back again)

Alexi
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post #10 of 12 Old 07-30-2019, 11:22 PM
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Just loosen the nut to see what you have. If it comes of as it should, apply anti seize, adjust the chain a little (slack measured on the sidestand, not the centerstand, and re-tighten.

If the nut just does not want to come off even after the initial resistance is overcome, it's probably toast. However the non castellated nuts have a lesser tendency to gall because they have a much larger thread contact area, I bet you will be just fine.

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