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rear hub / clutch problems

 
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rear hub / clutch problems
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tjupille



Joined: 20 Jun 2008
Posts: 3

Post rear hub / clutch problems Reply with quote
2005 Chetak; 7300 miles; I' m the second owner (since about 5,000 miles); Bike has been trouble-free up 'til now.

Problem: clutch refuses to disengage; cables are fine and adjusted properly (I've checked and double-checked!). The symptoms are consistent with the "loose clutch nut" problem.

So:

I've removed the back wheel, but for the life of me, I cannot get the rear hub nut to come off. I've used an air-driven impact wrench (450 ft-lbs torque), soaked in in PB Blaster for hours, and heated the nut with a propane torch and applied an ice cube to the hub. All to no avail.

That nut has a reputation for coming loose, and I suspect the PO (or his mechanic, since I'm pretty sure he didn't do his own wrenching) either tightened the living daylights out of the nut or used red locktite on it.

Possible courses of action from here:
- cut the nut off with a dremel wheel (but that risks damaging the axle) ?
- truck the scooter in to the shop (SF Scooter Centre) and let them
figure it out ?

Any other suggestions (or advice)?

Thanks in advance.

-- Tom Jupille
2005 Chetak
2005 Royal Enfield Bullet
2007 Genuine Buddy
Mon Aug 04, 2008 2:51 am View user's profile Send private message
rufusswan



Joined: 29 Sep 2007
Posts: 1786
Location: Taneyville, Missouri

Post Reply with quote
Sounds like you've tried everything within reason, or at least "at hand". I had the same issue with my scoot. I'd put on the nut with my 8" wrench then just a bit more with a 2 foot cheater. My el cheepo impact could not get it off. The local tire store had 200+ lbs. of air at the gun and spun it off instantly.

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Mon Aug 04, 2008 1:39 pm View user's profile Send private message Send e-mail MSN Messenger
matty_x



Joined: 06 Apr 2007
Posts: 1065

Post Reply with quote
If you can't get it off with all that effort, I'd also recommend bringing in the big guns... or taking the bike to them. Either way, it sounds like you need more oomph to get that sucker off.

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Mon Aug 04, 2008 2:33 pm View user's profile Send private message
tjupille



Joined: 20 Jun 2008
Posts: 3

Post Reply with quote
Thanks, guys. Not what I wanted to hear, but what I needed to know. Crying or Very sad It'll get trucked to the shop tomorrow.

-- Tom
Mon Aug 04, 2008 6:07 pm View user's profile Send private message
Owsley9



Joined: 05 Mar 2008
Posts: 214
Location: Birmingham, AL

Post Reply with quote
tjupille wrote:
Thanks, guys. Not what I wanted to hear, but what I needed to know. Crying or Very sad It'll get trucked to the shop tomorrow.

-- Tom


I would think any local garage would be able to zip that thing off. It's not scooter specific...

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Mon Aug 04, 2008 11:39 pm View user's profile Send private message Visit poster's website
tjupille



Joined: 20 Jun 2008
Posts: 3

Post Reply with quote
"If, at first, you don't succeed, hit it with a bigger hammer . . .
. . . repeatedly!

After having allowed the PB Blaster to soak in overnight, I decided to give it one last try when I got home from work.

Heated the nut just short of red-hot with the propane torch and wailed away at it with the impact wrench with 120 psi in the tank. Took two tanks of air, but it finally came off Very Happy

The clutch cover gasket got torn (naturally!), but hopefully the red RTV will take care of that problem.

The clutch nut *was* loose. Blue locktite and light impact wrench should hold it. Everything is back together. Shifting is crisper than it has been in weeks, so I suspect the nut has been gradually loosening up.

-- Tom
Tue Aug 05, 2008 5:53 am View user's profile Send private message
matty_x



Joined: 06 Apr 2007
Posts: 1065

Post Reply with quote
Hells yes. Nice work.

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Tue Aug 05, 2008 1:59 pm View user's profile Send private message
chaiguy



Joined: 10 Sep 2013
Posts: 10

Post Reply with quote
Someone please help me locate this rear hub nut...I have a 3 wheeler Bajaj and experiencing the same clutch issues...yes all my cables are fine so it must be this hub nut thing but I cannot find it. Sorry for my ignorance!
Sun Dec 08, 2013 12:50 pm View user's profile Send private message
scootermike



Joined: 25 Mar 2007
Posts: 525
Location: portland,oregon

Post Reply with quote
the first time i took off the hub nut i ended up using a wrench a fence pole as a cheater, it worked if worse comes to worse replace the nut and use a nut cracker to get the old one off sold in most hardware stores by the way the fence pole was from a chain link fence.
Sun Dec 15, 2013 9:15 pm View user's profile Send private message Visit poster's website
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