Bolt thread size

[Vegard]

Last night I tried adjusting the tension of the chain. What happened was that the fooking bolt sheared. It's the one on the back of the swinging arm.

It's approx 10mm or 3/8" but I'm not sure. Does anyone know which diameter it is?? Or which treads are on it?

I'm thinking of welding a nut on the ramains and try again.

Anyone else experienced this?

 

[FC501EAST]

Hi, vegard....
One of your posts indicate you have an '04 fs450.
#1 - Does it have an adjuster on both sides?? Can you use the one on the unbroken side as a reference?
#2 - Did you try checking the parts manual in the www.husaberg.se former downloads section? Info - parts #, size, threads - is on page 41 of the '04 parts manual!!!

 

[Vegard]

Yes, I've got the other one as a reference. I was trying my luck before going the hard way, with measuring etc
I could use the nut as a guide as well. I just hoped someone knew it off-hand

Thanks anyway!

 

[gruntunberg]

twisted nuts

vegard

i think it should be 10 mm ill have a look tomorow 04 501 and let you know first thing i did was take them out and put copperslip on them hpe it helps

regards steve

 

[BundyBear]

Guarantee it will be metric. 3/8" sounds like something that would come from the other side of the ocean! Pretty sure mine are M8.

 

[Vegard]

Oh, and it's a 04 btw.

The bolt is 10mm 1,25 pitch.

And, it's stainless. Stainless bolt and aluminium swinging arm. Are they morons at KTM??

First of all, nothing sticks like stainless in aluminium, secondly it's brittle like hell.

I'll try to weld a nut on it...

 

[Vegard]

Nope. Welding nuts on didn't help. I had to take the swing arm off, and put it in a CNC machine. I did however get the two bolts out. I'll get some pictures of them. I have now helicoils in there, which should work much better than the rubbish stainless/aluminium from the factory.

But, is this something that should be claimed from the dealer/manufacturer? I mean, the bike is seven months ole, and had been use for seven hours. I cannot be blamed for this...

 

[benk]

tensioner adjusters

comment: with every new bike or new purchase, i remove axle stops and clean threads then replace along with anti-sieze on the threads such as Never-sieze or Loctite anti-siezing compound.

 

[Vegard]

I would have thought that the factory would do this. I've now smeared everything with copaslip!