Colnago Master X-Light build - let it shine....

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Re: Colnago Master X-Light build - let it shine....

Postby singlespeedscott » Tue Aug 20, 2013 10:07 pm

Dan wrote:Hey, I agree on all points. You've more patience than me, that's for sure.

Now, I promise I'm not being picky, but what's the gap between the crown race and the lower headset cup? Just a test fit?

You haven't put the bearing race in upside down have you?
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by BNA » Tue Aug 20, 2013 10:21 pm

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Re: Colnago Master X-Light build - let it shine....

Postby open roader » Tue Aug 20, 2013 10:21 pm

singlespeedscott wrote:
Dan wrote:Hey, I agree on all points. You've more patience than me, that's for sure.

Now, I promise I'm not being picky, but what's the gap between the crown race and the lower headset cup? Just a test fit?

You haven't put the bearing race in upside down have you?


Dunno - now you all have me worried :shock: I have the instruction sheet in front of me now from the headset box and it matches the PDF sequence I actually used to press the set in place......... so no surprises there.

My partner will allow me to assemble the bike inside the house but when the grease tub/ oil rags come out I'm told to go to the shed :lol:........
....... so I'll have to harden up and brave the current antarctic blast tomorrow and pack the bearings up and see what gives........ this was my first headset fit completely solo (with borrowed tools) so chances are............
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Re: Colnago Master X-Light build - let it shine....

Postby singlespeedscott » Tue Aug 20, 2013 10:28 pm

open roader wrote:
singlespeedscott wrote:
Dan wrote:Hey, I agree on all points. You've more patience than me, that's for sure.

Now, I promise I'm not being picky, but what's the gap between the crown race and the lower headset cup? Just a test fit?


You haven't put the bearing race in upside down have you?


Dunno - now you all have me worried :shock: I have the instruction sheet in front of me now from the headset box and it matches the PDF sequence I actually used to press the set in place......... so no surprises there.

My partner will allow me to assemble the bike inside the house but when the grease tub/ oil rags come out I'm told to go to the shed :lol:........
....... so I'll have to harden up and brave the current antarctic blast tomorrow and pack the bearings up and see what gives........ this was my first headset fit completely solo (with borrowed tools) so chances are............


Don't forget when your putting it back together that the lower bearings are a little larger than the top ones. I've done that one in the past too.
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Re: Colnago Master X-Light build - let it shine....

Postby Dan » Tue Aug 20, 2013 10:29 pm

As have I.
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Re: Colnago Master X-Light build - let it shine....

Postby grantw » Tue Aug 20, 2013 10:46 pm

Amen to that
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Re: Colnago Master X-Light build - let it shine....

Postby vaeske » Tue Aug 20, 2013 11:03 pm

grantw wrote:Amen to that


we're all doing the right thing.....phew....:D
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Re: Colnago Master X-Light build - let it shine....

Postby dayne » Wed Aug 21, 2013 6:55 am

Also don't go over board with the grease and make sure it's a nice thin grease not a thick industrial or lanolin type,
And I also put mine in syringes to help keep it all clean and easy to apply.
Nice work on the build, as far as nitto v cinelli I usually build nitto on shimano groups and Cinelli on campy groups but like you say, The nitto stuff is far superior to any thing Cinelli has ever produced.

The clear coat over the frame is a great call,
Just when cabling it get an off cut of cable inner and use this under the bottom bracket, it does two things,
Helps the cable run without friction and will stop it citing into your bb,
But this frame may have a plastic guide?
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Re: Colnago Master X-Light build - let it shine....

Postby Dan » Wed Aug 21, 2013 7:33 am

+1 to everything Dayne said.
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Re: Colnago Master X-Light build - let it shine....

Postby open roader » Thu Aug 22, 2013 4:56 pm

OK, I'm stuck with a gap between the bottom bearing race and the bottom cup. I've spent enough hours trying to suss it out and really need help......

Things I do know :-

The frame head tube is squared off correctly, the tube was lightly reamed out and the cups are pressed in nice and flush to the head tube faces.

The fitment sequence is spot on, everything is placed in order and the larger size bearings are in the bottom cup / smaller bearings are in the top cup

The headset was purchased new, was factory sealed and by the looks of the neat packaging all the parts were present and correct to type.

I followed the Campag. PDF diagram (exactly the same as what appears on the paper intruction sheet supplied with the headset)

When I installed the cups etc and had my bike mechanic looking over my shoulder (I was borrowing his press and sleeves etc) my mech. did not assist me as I wanted to fit this one for myself but did offer verbal instructions and had no issues with what I did.......


Last night I spent over 90 min. flipping bearings, ring orientations etc - tighteded the whole set just up to the point of steering siezing then let it back off to smooth operation without fork stem slippage in the hope this would seat everything into place ...... but to no avail. - same gap of approx 1.8mm still exists

Any help would be most appreciated....... :oops:

Let's start from the bottom and work up - bottom race ring tapped on in correct orientation?
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Re: Colnago Master X-Light build - let it shine....

Postby open roader » Thu Aug 22, 2013 5:40 pm

Houston, we have a problem.........

Now I reckon this is the wrong way up..........
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Re: Colnago Master X-Light build - let it shine....

Postby Dan » Thu Aug 22, 2013 5:47 pm

open roader wrote:Houston, we have a problem.........

Now I reckon this is the wrong way up..........


crown race is on correctly.
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Re: Colnago Master X-Light build - let it shine....

Postby open roader » Thu Aug 22, 2013 5:54 pm

Dan wrote:crown race is on correctly.


Well that's a relief.

Then the next flat rubber O ring sits up with the tapered bit pointing up at the centre to match the profile of the crown race underneath?

I've tried fitting it both ways - makes no difference to the fit......

Rubberised O ring taper pointing up
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Re: Colnago Master X-Light build - let it shine....

Postby open roader » Thu Aug 22, 2013 6:20 pm

Bearing orientation - I figure the bearing retainer must be set with the base ring face down so the balls sit slightly up to engage the cup races...........

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Re: Colnago Master X-Light build - let it shine....

Postby toolonglegs » Thu Aug 22, 2013 6:27 pm

Other way up I would have thought...
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Re: Colnago Master X-Light build - let it shine....

Postby singlespeedscott » Thu Aug 22, 2013 6:31 pm

Yeap. You have the bearings "upside down Miss Jane".
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Re: Colnago Master X-Light build - let it shine....

Postby Dan » Thu Aug 22, 2013 6:33 pm

singlespeedscott wrote:Yeap. You have the bearings "upside down Miss Jane".


Correct, Blackboard.


'Bearing face goes on the race' works for me, if you're in to 'emimnemonics' ;)

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Re: Colnago Master X-Light build - let it shine....

Postby open roader » Thu Aug 22, 2013 6:39 pm

Dan wrote:
singlespeedscott wrote:Yeap. You have the bearings "upside down Miss Jane".


correct Blackboard.


Ok well I had tried with both ways but no difference in fit.

I just stumbled upon this........

Inside the bottom cup - the ball race is not as far into the cup as it can go. Compared to the top cut it's approx. 1.8mm left to go before it hits home...........

DUH

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Re: Colnago Master X-Light build - let it shine....

Postby open roader » Thu Aug 22, 2013 6:46 pm

In the absence of a press tool, do I attempt using a socket and hammer with a block of wood in between?
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Colnago Master X-Light build - let it shine....

Postby Dan » Thu Aug 22, 2013 6:51 pm

You could try that. You could also just tighten the locknut and pull it all together using the thread.

Proper way would be to use the tool, of course.

I'd be happy pulling it together, but that's me, and this is your build.
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Re: Colnago Master X-Light build - let it shine....

Postby dayne » Thu Aug 22, 2013 6:56 pm

No hitting any thing,
If you dont have a headset press i have seen a long bolt with a block of timber top and bottom,
But i would just go to the lbs and borrow one to nip it up, Hitting a soft ally headset can bend it.

I must applaud you for being up front and asking before jumping in and breaking stuff,
Admitting we dont know everything is a mans biggest down fall and i can be guilty at times.
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Colnago Master X-Light build - let it shine....

Postby Dan » Thu Aug 22, 2013 6:58 pm

Socket into top and bottom cups, booker rod and large flat washers is the cup press I've used on every build.
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Re: Colnago Master X-Light build - let it shine....

Postby open roader » Thu Aug 22, 2013 7:11 pm

I have some good clean 3/8 all thread rod....... might make myself a press using wood blocker well washered one end and a 1/2 " drive socket that fits into the race evenly with a tensioning nut on the other end........

I agree, knocking and banging even if the races are steel is problematic and I can be a klutz with heavy tooling....... :oops:
Last edited by open roader on Thu Aug 22, 2013 7:12 pm, edited 1 time in total.
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Colnago Master X-Light build - let it shine....

Postby singlespeedscott » Thu Aug 22, 2013 7:12 pm

open roader wrote:
I just stumbled upon this........

Inside the bottom cup - the ball race is not as far into the cup as it can go. Compared to the top cut it's approx. 1.8mm left to go before it hits home...........

DUH

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That bearing cup certainly doesn't look like its pressed into the alloy outer properly.
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Re: Colnago Master X-Light build - let it shine....

Postby Velo13 » Thu Aug 22, 2013 7:21 pm

If this is a new headset, I find this very unusual. However ...

Find a socket that will fit inside the alloy outer cup, but rest on the top of the steel inner race. Use a headset press to then compress the socket and steel race into the alloy lower cup (in a similar fashion to how you put the cups in initially).

Good luck!
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Re: Colnago Master X-Light build - let it shine....

Postby Velo13 » Thu Aug 22, 2013 7:22 pm

Also, I am loving this build, and I think the stem looks great!
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