CAMPYBOB said:
Here's another one for your dumb ass to dodge...
"AND, I further reckon that if the BB shell is blueprinted"
How the **** does one "blueprint" a BB shell you dipshit. It is what is, in terms of width. Re-face it, line bore it or do whatever you want to it, but you be eliminating material and it is a known that UT cranksets can and do click with a BB that is on high limit.
Eliminating the wave washer ADDS more clearance, the source of the noise. You can cure the noise with or without the wave washer in place as long as your shim(s) remove the excess endplay/axial clearance that causes the noise. Eliminating the drive side wire bearing retainer does exactly **** ****. All my bikes are quiet with the retainer in place or removed. The ONLY thing the retainer wire does is to hold the right side crank in place.
And guess what, moonbat? What C60 and I both accomplished was through "blueprinting" the assembly, not the BB shell...which is pretty much an impossibility as far as resolving the noise issue.
"Blueprinting" the requires the addition of material to remove the endplay. We call that material...SHIMS you douche nozzle. SHIMS. You damned right it's expedient and is the method that has been used by mechanics, machinists, engineers and...bicycle repairmen since the first loose bearing assembly was detected.
OK, Alf...tell us all exactly how you "blueprinted" your BB shell and eliminated parts
CAMPYBOB said:
C'mon, Alf. Let's see your blueprint. What is it you do to your BB that no one else does that builds a bike from the fame up...aside from verifying the Q-Factor. Frankly, I've never know a pro wrench or garage shop amateur to measure his Q-Factor.
In the mean time...even the Park Tool website agrees that shims/spacers may be needed in the Camptastic UT design...
http://www.parktool.com/blog/repair-help/external-bearing-crank-systems-hollowtech-ii-megaexo-giga-x-pipe-x-type-campagnolo-ultra-torque
"There is a "wavy washer" in the left side cup (Figure 4). This washer is used to account for variations in frame shell widths. For the common "English" or BSC shell the width acceptable width is from 67.2 to 68.8mm. The wavy washer is in effect the "bearing adjustment." If a bottom bracket shell measures too wide, it will need to be machined until it is with the tolerance range.
If the shell is too narrow, spacers may be added."
Amazing...the Rogue Mechanic pictured sticking a boat load of shims under the off-drive side cup. Just like I did several years before him!
http://roguemechanic.typepad.com/roguemechanic/2009/10/wavywasherectomy-the-ultratorque-fix.html
Well, I'll be the light in the darkness and report that even the widest 'in spec' BB shell width can still click and tick. Frankly, using only the wave washer as a pre-load control is insanity.
Alf, you best get your ass over to RM's blog and tell him his 'air gap' in the Hirth Joint is all ****ed up and ****. I'm sure you'll soon have him measuring Q-Factors and throwing away retainer clips.
OMG, OMG, OMG!!!
It IS sad that
MY error is BOTH
not realizing that your self-imposed ignorance means that you do not understand how the term
blueprinting has been used for decades outside of your apparently parochial environment AND possibly my thinking that you were smarter than you are ...
BECAUSE, it is very sad to see YOU, in particular, wallowing in your ignorance ...
FYI. In addition to the simplistic interpretation which you are apparently conflating with the alternate denotation, the term
blueprinting has been used for decades (
probably, more than a century!) to refer to bringing an internal combustion engine EITHER up to spec OR to within a preferred parameter ...
BUT, one can certainly use the term
blueprinting to suggest ensuring the physical execution of a design is at spec ...
Regardless, EITHER the draftsman OR the "mechanic" can render the engineer's design & values.
So, to
blueprint a BB shell is to ensure that it is not only properly faced (
if a threaded BB shell), but that it's width is AS SPECIFIED (
spec'd, if you will allow) ...
So, an English threaded BB shell is
68.00mm wide.
NOT
68.10mm ...
NOT
67.90mm ...
NOT EVEN "slightly over" at
68.01mm ...
OR
67.98mm.
A
blueprinted English threaded BB shell is just
68.00mm because THAT is the specification!
Similarly, a
blueprinted Italian threaded BB shell is just
70.00mm.
A Press Fit BB shell's specs can be
reverse-engineered (
if necessary) by installing the UT spindles (with bearings) without the superfluous Wavy Washer, etc. BECAUSE (
thanks to SIMPLE ARITHMETIC), the "ideal" width of the assembly when the Hirth Coupling's halves are snugly joined to one another is known.
Is it possible to measure the width of an Ultra Torque crankset when the two halves are properly joined?
Why, yes it is!!
Do you want to guess what that measurement is at various points along the two crankarms?
WHERE do you think the easiest place would be to make a measurement?
Let's see ...
Oh, you could measure the overall width at the spindle ...
THAT measurement would need to be done two times ...
1. installed with the miscellaneous Wavy Washer/etc.
2. with the crankset outside the frame so that a "raw" measurement
can be taken when the Hirth Coupling is properly joined together
Or, you could certainly measure the overall width at an arbitrary distance from the spindle ...
Or, if a person wanted to, they could simply measure it at the pedal holes and then not need to measure the installed width. THAT figure is a known ... a given ... in some cases, it exceeds the prescribed numerical value emblazoned near the end of every Campagnolo Ultra Torque crank arm when it leaves the factory.
The use of the Q-FACTOR as a measurement is-and-was a simple expedient label which was-and-may-still-be too complicated for you to wrap your head around.
Are you still with me, or is that too complicated for you?!
So, to
blueprint a BB shell is NOT to render a drawing but to ensure that it is as close to
68.00mm by whatever means possible ...
Got it?
AGAIN, it does NOT just mean rendering a design on paper ...
OR, do YOU insist on continuing to wallow in your ignorance in what the term
blueprinting means outside of your parochial experience?!?
BTW.
Regarding the Troll's opening post in this Thread wherein he tried to ensure that we understood he was a serious cyclist (after all, he has a Colnago C60 which is outfitted with Campagnolo Super Record components) and he supposedly worked as an engineer at "Mercedes" & therefore he should be considered to be a serious commentator on the topic, if he was as smart as he wants us to think that he is, then would he have bought an Ultra Torque crankset [due to the known "clicking" problem and NOT knowing about the "Rouge (
sic) Mechanic's"
kluge to "fix" the "clicking" problem]
OR once he, himself, experienced the "clicking" problem then he probably would have come up with a better solution than using the comparatively unstable silicon compound to dampen the "clicking" sound.
Of course,
I was critical of the UT design almost as soon as I became aware of it (
mostly because of the Wavy Washer & what it implied); but, I had-and-have fallback cranksets & BBs which I am more than willing to mix-and-match with my various Campagnolo shifters/derailleurs ...
Regardless, wouldn't it have been wrong for ME to continue to heck
le the UT design if I did not try to better ascertain the underlying design & its subsequent production implementation?
A few minutes taking the single measurement when the Hirth Coupling is actually connected properly & comparing it with the "standard" installation + known
kluges AND the fact that the original specs were apparently maintained in the manufacturing of the spindle & BB cups were all it took to appreciate the probable, original design + the problems of possible lateral play + the supplied solution + the correct installation if everything is as it was on the original plans.
BTW. The connecting bolt on all of MY Ultra Torque cranksets have right hand threads. MY observation is that it has the same threading as the "crank" bolt which can be used to secure an Octalink-or-ISIS crank arm to its BB respective spindle.
Makes one wonder what else YOU might have gotten wrong!!!
I won't do the arithmetic for you, again, since that seems to confuse the you (
the "collective" you); but, I will if you want me to do it for you.
Anyone-and-everyone else can complicate the installation of their UT cranksets as they choose; but, knowing what
I know AND while things may change in the future, for the time being
I prefer not to complicate the installation & maintenance of my UT cranksets because I think that it easier (
for me!) to ensure that the BB shell's dimensions are properly spec'd.
FWIW. Here is a UT crankset
sans the unnecessary Wavy Washer or superfluous Wire Clip which
I installed in an English threaded BB shell which has been physically
blueprinted which you can compare (
visually) with your installations ...

I'll let YOU guess what the Q-FACTOR is!!!
