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Goldline Caliper Pinch bolts - torque setting?

Started by junior varsity, February 14, 2011, 12:02:35 PM

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junior varsity

February 14, 2011, 12:02:35 PM
The 4 bolts that hold the two piece calipers together - what is the appropriate torque value for this?   (Not the one in the owners manual that describes the caliper mounting bolts that attach caliper to fork bottom).

I've seen 29NM dry, 30-35nm with loctite, and 40NM when searching online. I had at one time found a definitive answer for this but cannot locate the bookmark.

junior varsity

#1
February 14, 2011, 12:24:43 PM
I talking about the 4 bolts seen along the top edge of the caliper, shown here:


http://tinyurl.com/4ehhvgl

(because i want 'em too look this good on the other 900 too)

ducatiz

#2
February 14, 2011, 12:32:17 PM
No loctite.

I torque mine (goldline and otherwise) to 25 ft lbs which is about 35 nm.  If you MUST use loctite, do not use Red, use the thread seal or blue.  I've built dozens with this, no problems.
Check out my oil filter forensics thread!                     Offended? Click here
"Yelling out of cars, turning your speakers out the window to blast your music onto the street, setting off M-80 firecrackers, firing automatic weapons into the airâ€"these are all well and good. But none of them create a merry atmosphere of insouciance and bonhomie quite like a revving motorcycle.

junior varsity

#3
February 14, 2011, 12:41:44 PM
why no loctite on what seems like critical area?


next questiooooon. ti bolts. i have always used antiseize. would antiseize be unwise in this application?

ducpainter

#4
February 14, 2011, 02:05:14 PM
I'd use something on the threads to keep them from seizing.

Grease or anti-seize I'd think.

You might want to up the torque a few pounds to compensate for the lubed threads.
"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."


junior varsity

#5
February 14, 2011, 02:35:55 PM
good news. just got word back from Allen @  TPO (they make the Ti through-bolts or pinch bolts) and he said

QuoteI have always used 35 NM with loctite and never had a problem

That's two of you and that seems quite alright with me.

ducpainter

#6
February 14, 2011, 02:43:55 PM
Quote from: a m on February 14, 2011, 02:35:55 PM
good news. just got word back from Allen @  TPO (they make the Ti through-bolts or pinch bolts) and he said

That's two of you and that seems quite alright with me.
Did he say what color loctite?

I agree with 'Tiz about no red.
"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."


junior varsity

#7
February 14, 2011, 02:55:33 PM
he did not.

and if you are thinking no red, then i shall use blue.

ducatiz

#8
February 14, 2011, 02:58:56 PM
I would use Green 29000 or Blue.  29000 is yet a weaker form of loctite. 

The screws are torque and there is no lateral stress to loosen them.  Unlike some materials, the caliper bodies do not expand much. 

Blue or Green 29000.  (there are two types of green)
Check out my oil filter forensics thread!                     Offended? Click here
"Yelling out of cars, turning your speakers out the window to blast your music onto the street, setting off M-80 firecrackers, firing automatic weapons into the airâ€"these are all well and good. But none of them create a merry atmosphere of insouciance and bonhomie quite like a revving motorcycle.

ducpainter

#9
February 14, 2011, 03:06:45 PM
It's settled then. ;D

Don't use the green sleeve retainer. You'll never get them out. [laugh]
"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."


junior varsity

#10
February 14, 2011, 03:07:53 PM
These are going on a set of the billet 2-piece calipers, so "goldline" is misleading, except that everything seems to be identical so far when taking them part.

ducpainter

#11
February 14, 2011, 03:11:14 PM
Quote from: a m on February 14, 2011, 03:07:53 PM
These are going on a set of the billet 2-piece calipers, so "goldline" is misleading, except that everything seems to be identical so far when taking them part.
It's still a caliper.

Don't confuse yourself with over thinking. ;)
"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."


ducatiz

#12
February 14, 2011, 03:50:23 PM
Quote from: ducpainter on February 14, 2011, 03:06:45 PM
It's settled then. ;D

Don't use the green sleeve retainer. You'll never get them out. [laugh]

yeah, that's the other Green Loctite.  Not for threads.
Check out my oil filter forensics thread!                     Offended? Click here
"Yelling out of cars, turning your speakers out the window to blast your music onto the street, setting off M-80 firecrackers, firing automatic weapons into the airâ€"these are all well and good. But none of them create a merry atmosphere of insouciance and bonhomie quite like a revving motorcycle.

junior varsity

#13
February 14, 2011, 03:54:39 PM
The only thing I still need is 1 o-ring that seals the two caliper halves together.   I've got one good one, now I just need a source for the other.

junior varsity

#14
February 14, 2011, 04:50:54 PM
Apparently that will prove more difficult than most other tasks, as the parts fiche don't break down far enough to give me a part number for that o-ring, and apparently Brembo doesn't do 'spares' for regular machines.

Any thoughts on how to find replacement seals / o-rings for the Brembo calipers? They are the 30/34's. I can "kind of" measure the one O-ring I have (approx. 1.5mm thick, 10mm OD, 6mm ID), but then when it comes to material for use in brakes, it seems difficult (does Aflas take the #1 spot? Can't find a perfect match on McMaster-Carr)
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