Author Topic: Swing arm bolt  (Read 2107 times)

Sherman

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Swing arm bolt
« on: September 21, 2015, 07:14:30 AM »
Swing arm bolt, the small “washer” that holds the bolt on the right hand side did come loose, I do always tight with torque wrench and per the book shall it be 100 Newton Meter.

Any solution to this? It would be bonkers to start to weld on a brand new OEM bolt.

A new was dear to, 100 USD!!!
'15 250 SEF-R

Göteborg/Gothenborg
Sweden

Nitsuga

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Re: Swing arm bolt
« Reply #1 on: September 21, 2015, 09:19:56 AM »
Wow, I didn't think it could come off. What did the dealer say?
Sherco 300 Sef-R 2017
Sherco 300 Sef-R 2015 (going)
Sherco 300 Sef-R 2014 (Gone)
several orange bikes before seeing the light

Temuco, CHILE

Sherman

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Re: Swing arm bolt
« Reply #2 on: September 21, 2015, 10:30:08 PM »
Nor did I, my dealer did not say so much but he had one in stock?
Great that he did have one but why do a small dealer has an odd part like this in stock?
I have never changed the swing arm bolt on any of my previous 4xOB and 5x Japs, the bearing etc. yes but never the bolt.

The Sherco’s is popular in Sweden and I have heard more guys that have had the same issue, a weak spot?
'15 250 SEF-R

Göteborg/Gothenborg
Sweden

Sherconator

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Re: Swing arm bolt
« Reply #3 on: September 21, 2015, 10:48:47 PM »
Hey there Sherman, is that end piece a press fit, threaded or is it spot welded to the swing arm bolt, I didn't take much notice of mine when I had it out. Will keep an eye on it though. Cheers Richard
2015 Sherco 450 sef-r Factory
Ashley, South Island, New Zealand

Sherman

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Re: Swing arm bolt
« Reply #4 on: September 21, 2015, 10:52:45 PM »
It seems like it is fine treaded on the bolt and “washer” and that the treads has given up, my bike has only 41 hours now and I have always used the torque wrench so be careful.
'15 250 SEF-R

Göteborg/Gothenborg
Sweden

erdat

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Re: Swing arm bolt
« Reply #5 on: October 24, 2021, 09:00:41 AM »
My swing arm had a little side to side movement. After I took of the frame cover plastics I discovered that the swing arm bolt's "washer" was loose. The parts book shows this bolt as one piece - parts number 0451.
As Sherman reported, the threat was stripped too.
I too torque my bolts and nuts to specs.
The bike is a SE250R, lightly ridden mostly on single track. No major or huge jumps.
Besides ordering a new part, what would be possible fixes? For example welding the "washer".

-Erdat
« Last Edit: October 24, 2021, 11:10:40 PM by erdat »
'15 SE-R 250
Ankara, Turkey

erdat

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Re: Swing arm bolt
« Reply #6 on: October 24, 2021, 11:16:59 PM »
Follow up: The Sherco dealer does not have the part (0451). It will at least take one month to get it.
After doing some research, it seems that the swingarm bolt is made of 304SS. So I might get one done. One friend suggested to go with a 5/8 imperial thread, he told me that it would have wider "teeth".

-erdat
'15 SE-R 250
Ankara, Turkey

Northeast

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Re: Swing arm bolt
« Reply #7 on: October 26, 2021, 03:49:20 AM »
You can have someone good weld that .
Just tell him it is 304 stainless.

You can always replace it in a month if you want.