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i *LOVE* Eye-Talian quality-control...

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i *LOVE* Eye-Talian quality-control...

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Old 02-11-10, 03:18 PM
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wallymann
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i *LOVE* Eye-Talian quality-control...

...NOT!!!

thankfully the front of the fork-crown isnt really under any stress when braking, so grinding to correct this shouldnt be a problem.



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Old 02-11-10, 03:23 PM
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JunkYardBike
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Wassa matter for you?
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Old 02-11-10, 03:34 PM
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Quality control problem?
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Old 02-11-10, 03:52 PM
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Seems like they drilled it downwards. I'd ask if there's anyways you can mount it backwards on the fork, but that doesn't work too well with sidepulls, nor does it look very nice.
-Gene-
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Old 02-11-10, 04:29 PM
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helicomatic
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Could be somewhat exacerbated by an overenthusiastic crown race seat milling, in addition to being drilled crooked.
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Old 02-11-10, 04:41 PM
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Rethinking my plans for a somec/gipiemme project.
Ill stick to french bikes.
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Old 02-11-10, 04:53 PM
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Wassa madda you? The hole she's a straight. It's a da fork crown that was tilted.

Send it back to the maker for repair/replacement.

I would NOT grind the crown race to fix that.

If you are going to take off material anywhere, grind tops of the washers until they slip under the race.
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Old 02-11-10, 04:59 PM
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My CLB-2 brakeset features a washer with a flatted section to clear such headsets. Avoidable, yes, but not unfixable.

-Kurt
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Old 02-11-10, 05:19 PM
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Originally Posted by cudak888 View Post
to clear such headsets. Avoidable, yes, but not unfixable.
it's not a biggie, i'll grind some star washers and stack 'em.

but the problem is not the headset. it's the drilling. look at the hole centerlines (the lower horizontal lines), they are not equidistant from the crown race!!!

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Old 02-11-10, 05:25 PM
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Originally Posted by wallymann View Post
but the problem is not the headset. it's the drilling. look at the hole centerlines (the lower horizontal lines), they are not equidistant from the crown race!!!
Yes, yes, I see it. Still, it isn't absolutely terminal - it can be worked around.

-Kurt
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Old 02-11-10, 07:00 PM
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Originally Posted by cudak888 View Post
My CLB-2 brakeset features a washer with a flatted section to clear such headsets. Avoidable, yes, but not unfixable.

-Kurt
oh yeah, it's already bolted up. i split the difference, took ~1mm out of the south-end of the hole and ~1mm off the north end of the stacked star washers. i also knocked a little off the hex-bolt on the back of the caliper.

voila! just one of those funny "artisan" effects that makes each bike unique. :-)

here's a pic, post-fix...it's snug!


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Old 02-11-10, 07:16 PM
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More importantly, what the hell is that thing? I want to stay away from them.

-Kurt
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Old 02-11-10, 07:41 PM
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Originally Posted by wallymann View Post
oh yeah, it's already bolted up. i split the difference, took ~1mm out of the south-end of the hole and ~1mm off the north end of the stacked star washers. voila!

just one of those funny "artisan" effects that makes each bike unique!
Problem solving 101. You haven't lived till you've worked on a Fiat! Can't wait to see her built up. I keep coming back and taking a look at your original thread, and I think I'd like to ride one of these for a summer or two. Have you found any other "little" quirks?
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Old 02-11-10, 07:53 PM
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Uhmmm....drop bolt time??!!

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Old 02-11-10, 09:02 PM
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Originally Posted by Chombi View Post
Uhmmm....drop bolt time??!!
nah. drop-bolts are designed for BIG off-sets, not a few mm due to poor QC.

Originally Posted by gomango View Post
Have you found any other "little" quirks?
the rear brake bridge is neat -- it's not a single cast piece, but hand-made from a cast center and cut/notched/bent arms and "lugs" on the chainstays all brazed in place.

nice touch, no expensive tooling necessary!


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Old 02-11-10, 09:56 PM
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What is that thing?

-Kurt
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Old 02-11-10, 10:00 PM
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Somec, right? It says on fork crown.
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Old 02-11-10, 10:41 PM
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Originally Posted by jan nikolajsen View Post
Somec, right? It says on fork crown.
Whoops, missed that gold amongst all the chrome.

-Kurt
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Old 02-12-10, 01:52 AM
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I posted it first. :-)

You're welcome.

How about filling the misdrilled hole with heavily metal-filled epoxy and then redrilling it correctly? You could conceivably epoxy-bond a steel rod into that sad hole using epoxy to add some metal back into the affected area before redrilling.

You don't want to weld or silver solder as it will hurt the chrome and paint.
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Old 02-12-10, 02:42 AM
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I wouldn't mess around with a defective fork crown too much.
Somec doesn't build that many bikes per year, do they? I'm surprised something like this got by them. Where did you get the fork from? Makes me wonder if someone's flogging factory seconds off on overseaers.
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Old 02-12-10, 06:05 AM
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yep!
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Old 02-12-10, 06:28 AM
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Originally Posted by Mike Mills View Post
I posted it first. :-)

You're welcome.

How about filling the misdrilled hole with heavily metal-filled epoxy and then redrilling it correctly? You could conceivably epoxy-bond a steel rod into that sad hole using epoxy to add some metal back into the affected area before redrilling.

You don't want to weld or silver solder as it will hurt the chrome and paint.
Please don't consider doing this to the bike. It doesn't deserve it.

Again, your washer solution is fine. Go forth with vigor on your build.
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Old 02-12-10, 06:31 AM
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Originally Posted by rumrunn6 View Post
yep!
Very nice addition to the thread. Clearly, this will give Wallymann any energy he may need to keep building. Or it will be a huge distraction.
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Old 02-12-10, 07:00 AM
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this issue is done, i filed ~1mm from the bottom of the mis-aligned hole then ~1mm from the tops of the star-washers...that gave me enough room for stuff to fit snugly

the front of the fork crown doesnt see much stress, as the brake caliper tends to be pulled *away* from the fork when applying brakes. no need for filler or welding or anything.

Originally Posted by Torchy McFlux View Post
I wouldn't mess around with a defective fork crown too much.
Somec doesn't build that many bikes per year, do they? I'm surprised something like this got by them. Where did you get the fork from? Makes me wonder if someone's flogging factory seconds off on overseaers.
this bike is from 1984 and i bought it from the 1st private owner after spending most of it's life in a shop window or store-room. back then, customers werent so discerning.

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Old 02-12-10, 12:28 PM
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Lots of advice here, some good, some questionable.. but clearly wallyman knows what he's doing, despite having only 48 posts. Sometimes in our close knit community we forget that newcomers can have as much or more experience than the resident experts.

BTW nice photo presentation of the now solved issue.
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