Broken chain adjuster

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Re: Broken chain adjuster

Post by ogden » Tue Jun 09, 2015 9:18 pm

Magic Wand wrote:Also the procedure to drill holes in the swinging arm to let water drain out, I don´t like. Even though it´s a small hole, the total strength of the swinging arm will be decreased. Just some percent, but still.
By an infinitessimal amount.
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Re: Broken chain adjuster

Post by kevxtx » Tue Jun 09, 2015 9:34 pm

Welcome mate.

Some good tips, the drilling of the holes has been done on hundreds of 990's from the adventures, Super dukes across a whole lot of forums with no reported side affects over the years.

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Re: Broken chain adjuster

Post by budgesrsv » Wed Jun 10, 2015 12:35 am

I do agree with the aluminium anti sieze compound, great stuff I use for things like exhaust joints etc. Used it on my chain adjusters as a precautionary measure but haven't found any water in there yet. As for drilling the swinging arm I doubt a couple of 3mm holes could compromise the strength as everything is way over engineered on a production bike.

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Re: Broken chain adjuster

Post by Magic Wand » Wed Jun 10, 2015 10:34 am

ogden; Yes :-)
kevxtx; Oki, sounds great!
budgesrsv; Is it, really? Not many manufactures would use more "material" than necessary due to cost, right? But hopefully you are right :-) I´ll discuss it with some mechanics at the local KTM service center.

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Re: Broken chain adjuster

Post by Thirdway » Wed Jun 10, 2015 1:27 pm

Magic Wand wrote:Hi!

My first post at this great forum!
Bought a 2010 SMT a week ago (4:th of June 2015) with 16967 km (10542 miles, about) on the ODO.

I´v been reading some of the subjects at this forum and this one about chain adjuster screws and the aluminum swinging arm that corrodes in the threads, I would like to suggest following:
Some people argues copper paste on the threads/screw, but it's a bit wrong?
When it comes to aluminum threads with steel/stainless steel screws, I prefer aluminum paste.

Also the procedure to drill holes in the swinging arm to let water drain out, I don´t like. Even though it´s a small hole, the total strength of the swinging arm will be decreased. Just some percent, but still.
It depends where the hole is drilled of course, but it isn't at all true that a hole decreases the strength of a structure. As an example, a tube has an enormous hole down its centre and very little wall thickness at all. If you look at bridge sections and aircraft frames, you will see a multitude of holes punched into the structures. As long as the hole is circular, then the stresses just flow around it without any detriment to the structures strength. If you ever get the chance, grab the thinnest section of a bicycle frame made from lightweight steel. The seat stays on older bikes are good to try. Saw it free of the frame then attempt to bend it. It's phenomenally strong despite the tube wall being as thin as a few sheets of tin foil and the diameter of a chunky pencil.

However, that aside. If you look at the swing arm it is peppered with holes for various things to screw into. :)

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Re: Broken chain adjuster

Post by ogden » Wed Jun 10, 2015 1:30 pm

It's not like KTM are making the bikes out of bits of old De Havilland Comets.
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Re: Broken chain adjuster

Post by budgesrsv » Wed Jun 10, 2015 6:24 pm

ogden wrote:It's not like KTM are making the bikes out of bits of old De Havilland Comets.
Oh I don't know about that ? :lol:

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Re: Broken chain adjuster

Post by ogden » Wed Jun 10, 2015 6:27 pm

OK, maybe the subframes...
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Re: Broken chain adjuster

Post by Kernow » Wed Jun 10, 2015 6:36 pm

One of my chain adjuster bolts siezed solid before the bike was a year old despite greasing them when I first got the bike .
In my case it wasnt a corrosion issue , the guy who respire dut described it as thread galling , ie cut too tight and not cleanly cut .
The threads in both sides were cut very tight so the bolts could not be turned by hand , I ran a tap down the one that hadn't quite siezed and it's been find since . I think something was forgotten missing when it was made or the tooling was worn out .

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Re: Broken chain adjuster

Post by Thirdway » Wed Jun 10, 2015 7:38 pm

ogden wrote:It's not like KTM are making the bikes out of bits of old De Havilland Comets.
The bolts aren't that good. As resistant to moisture as breadcrumbs are to a Tsunami.

Anyway, what was so bad about the comet ? Well except the picture sash windows they fitted at one stage.

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Re: Broken chain adjuster

Post by ogden » Wed Jun 10, 2015 8:21 pm

Thirdway wrote:what was so bad about the comet ? Well except the picture sash windows they fitted at one stage.
In the context of putting holes in metal making it weaker...
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Re: Broken chain adjuster

Post by budgesrsv » Wed Jun 10, 2015 9:00 pm

ogden wrote:
Thirdway wrote:what was so bad about the comet ? Well except the picture sash windows they fitted at one stage.
In the context of putting holes in metal making it weaker...
Them was square holes int comet, should of been round :lol:

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Re: Broken chain adjuster

Post by ogden » Wed Jun 10, 2015 9:05 pm

budgesrsv wrote:Them was square holes int comet, should of been round :lol:
Well, yes, quite. That's the point I was making.
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Re: Broken chain adjuster

Post by Thirdway » Wed Jun 10, 2015 9:37 pm

ogden wrote:
Thirdway wrote:what was so bad about the comet ? Well except the picture sash windows they fitted at one stage.
In the context of putting holes in metal making it weaker...
this: sash windows.

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Re: Broken chain adjuster

Post by Thirdway » Wed Jun 10, 2015 9:38 pm

budgesrsv wrote:
ogden wrote:
Thirdway wrote:what was so bad about the comet ? Well except the picture sash windows they fitted at one stage.
In the context of putting holes in metal making it weaker...
Them was square holes int comet, should of been round :lol:
The song had it t'other ways about.

Round when it ought to be square.

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Re: Broken chain adjuster

Post by passiv » Sun May 15, 2016 8:28 am

hey guys, how about replacing the bolts with titanium ones? http://m.ebay.co.uk/itm/262045830793?ro ... mwBanner=1

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Re: Broken chain adjuster

Post by Kernow » Sun May 15, 2016 9:05 am

That's looks like a good idea , didn't know they were available . Nice one

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Re: Broken chain adjuster

Post by Magic Wand » Mon Aug 15, 2016 8:23 pm

Are the 2 nuts included as well?!
13,30 GBP for 2?
/M

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Re: Broken chain adjuster

Post by passiv » Wed Aug 17, 2016 2:15 pm

i have ordered 1 piece of that item and received 2bolts and 2nuts...but i paid £20,00 ...if it is now £6.65, even better for you :) i don't have them on yet though

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Re: Broken chain adjuster

Post by Magic Wand » Thu Aug 18, 2016 7:03 pm

"passiv"

I had a look at their homepage and found out that 2 bolts and 2 nuts cost 20 GBP.
Not 6,65... That price is for only 1 (one) piece of bolt.

I have no intentions of "save" a few grams, nor spend more than 20 GBP for something that already works on my bike.
(https://titanclassics.com/product/ktm-t ... 304040100/)

/M

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