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chain adjuster bolts: size, length and pitch?

Started by Rudemouthsky, May 03, 2014, 09:22:23 PM

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Rudemouthsky

May 03, 2014, 09:22:23 PM
Anyone know? And is there any reason I shouldn't use stainless cap screws to replace them?

Cheers
"while there is a lower class, I am in it, and while there is a criminal element, I am of it, and while there is a soul in prison, I am not free." -Debs

DarkMonster620

#1
May 04, 2014, 04:53:42 AM
Carlos
I said I was smart, never that I had my shit together
Quote from: ducatiz on March 27, 2014, 08:34:34 AMDucati is the pretty girl that can't walk in heels without stumbling. I still love her.
"When you have eliminated all which is impossible, then whatever remains, however improbable, must be the truth."

cayman s

#2
May 04, 2014, 10:33:10 AM Last Edit: May 04, 2014, 04:39:17 PM by cayman s
Don't know about yours, but, unless my memory is wrong, the inboard ends of the OEM chain adjuster bolts on my aluminum swingarmed '97 M900 each have a small machine screw threaded into them that's pointed toward the rear of the swingarm.  

https://www.dropbox.com/s/wmbsk826q3uqv3u/m900%20swingarm.wpd


SS bolts, and the ones from Motowheels, do not make provisions for the two machine screws and their associated hardware.

Speeddog

#3
May 04, 2014, 10:47:09 AM
They're M8x1.25, but they're both fully threaded *and* quite long, which will present a bit of difficulty in getting off-the-shelf replacements.

As Cayman said, they're internally threaded for a safety retainer washer and bolt on the inside end.
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Reseda, CA
(951) 640-8908

~~~ "We've rearranged the deck chairs, refilled the champagne glasses, and the band sounds great. This is fine." - Alberto Puig ~~~

Rudemouthsky

#4
May 04, 2014, 11:35:40 AM Last Edit: May 04, 2014, 11:53:06 AM by Buck Naked
Thanks all.

Thanks Carlos, I'm familiar with the MW bolts. Just didn't wanna pay $15 for what seems like plain ol', nothin' special bolts.

Nick, about how long is "very long"? it appears they only need to pass through the sliding shoe.
"while there is a lower class, I am in it, and while there is a criminal element, I am of it, and while there is a soul in prison, I am not free." -Debs

Rudemouthsky

#5
May 04, 2014, 12:37:11 PM
I bet they're 100mm...
"while there is a lower class, I am in it, and while there is a criminal element, I am of it, and while there is a soul in prison, I am not free." -Debs

DarkMonster620

#6
May 04, 2014, 02:46:12 PM
Carlos
I said I was smart, never that I had my shit together
Quote from: ducatiz on March 27, 2014, 08:34:34 AMDucati is the pretty girl that can't walk in heels without stumbling. I still love her.
"When you have eliminated all which is impossible, then whatever remains, however improbable, must be the truth."

Rudemouthsky

#7
May 04, 2014, 03:01:37 PM
Ahh now I feel silly. Says M8X90 right on the description when you punch in the part number. Should've checked...Ducati usually reveals the sizes of their hardware in the item description when you punch it in.

"while there is a lower class, I am in it, and while there is a criminal element, I am of it, and while there is a soul in prison, I am not free." -Debs

DarkMonster620

#8
May 04, 2014, 03:07:29 PM
Quote from: Buck Naked on May 04, 2014, 03:01:37 PM
Ahh now I feel silly. Says M8X90 right on the description when you punch in the part number. Should've checked...Ducati usually reveals the sizes of their hardware in the item description when you punch it in.


the ones I have on a plastic pouch do measure 100mm . . . ???
Carlos
I said I was smart, never that I had my shit together
Quote from: ducatiz on March 27, 2014, 08:34:34 AMDucati is the pretty girl that can't walk in heels without stumbling. I still love her.
"When you have eliminated all which is impossible, then whatever remains, however improbable, must be the truth."

Rudemouthsky

#9
May 04, 2014, 03:43:58 PM
Item #77910242A?

For anyone else's future reference:

Fully threaded 316L stainless bolts, M8X1.25X90 or 100 rated at 100,000psi can be found at McMaster Carr for $2.40 each. I'm kinda tempted by these....http://www.oppracing.com/product_display/9725-lightech-titanium-hex-flange-screw-m8x100-125/


"while there is a lower class, I am in it, and while there is a criminal element, I am of it, and while there is a soul in prison, I am not free." -Debs

ducpainter

#10
May 04, 2014, 04:03:33 PM
Quote from: Buck Naked on May 04, 2014, 03:43:58 PM
Item #77910242A?

For anyone else's future reference:

Fully threaded 316L stainless bolts, M8X1.25X90 or 100 rated at 100,000psi can be found at McMaster Carr for $2.40 each. I'm kinda tempted by these....http://www.oppracing.com/product_display/9725-lightech-titanium-hex-flange-screw-m8x100-125/



How are you going to deal with the internal thread?
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Speeddog

#11
May 04, 2014, 04:26:22 PM
Quote from: ducpainter on May 04, 2014, 04:03:33 PM
How are you going to deal with the internal thread?

316?

I'd ask Kevin to do it.
- - - - - Valley Desmo Service - - - - -
Reseda, CA
(951) 640-8908

~~~ "We've rearranged the deck chairs, refilled the champagne glasses, and the band sounds great. This is fine." - Alberto Puig ~~~

koko64

#12
May 04, 2014, 04:38:10 PM
Get the Ti ones. $25 each. [evil] No, don't. A mate of mine went nuts and spent over $500 on gold coloured Ti bolts for his bike.
Cap end might look better though on the end of the swingarm I reckon. If you go stainless, you can buy two of each and see how it looks.
2015 Scrambler 800

ducpainter

#13
May 04, 2014, 04:50:44 PM
Quote from: Speeddog on May 04, 2014, 04:26:22 PM
316?

I'd ask Kevin to do it.
So would I...

but that would increase the price from $2.40 ea. ;)
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


memper

#14
May 04, 2014, 05:00:57 PM
Quote from: ducpainter on May 04, 2014, 04:03:33 PM
How are you going to deal with the internal thread?
It's not an integral feature, just a safety back up right? Why not drill the head and safety wire it? Just a good and looks cooler too.
"Calling a bikini fairing on a monster a fairing is like calliing a girl in an actual bikini proper work attire....unless shes a stripper." -He Man

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