The Masi's dropout hanger is askew
09-22-19, 09:45 AM
#27
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Well, early Saturday I went on a group ride that started and ended at the LBS; left the RD on the 4th cog, chattering away back there, and did the whole ride in 4th/inner and 4th/outer, and kept up (I usually ride alone, so it felt a bit strange). After the ride, the LBS was open for business, and they adjusted the hanger but I have not tested the results yet but it looks right.
I need to do this, one of my other bikes might need this adjustment some day. One more reason I must buy a drill press, even if it's a small one; this alone, plus I was following the topic on polishing hub cones, would justify the expense.
This would have been tempting! Only, however, with a "sacrificial" derailleur; otherwise, with my luck, I'd bend the Nuovo Record, and that's unacceptable.
RJ the bike hack shows you how to make a homemade tool.
https://youtu.be/sWdO4dnu18g
https://youtu.be/sWdO4dnu18g
But using the Allen wrench method is only easy after the hanger has been adjusted carefully with an appropriately sized Crescent wrench closed on the hanger. Then, the long handle of the Allen displays any additional adjustment needed in SIX directions! After all, this is rocket medicine. ;-]
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Larry:1958 Drysdale, 1961 Gitane Gran Sport, 1974 Zeus track, 1988 Masi Gran Corsa, 1974 Falcon, 1980 Palo Alto, 1973 Raleigh Gran Sport, 1974 Legnano. Susan: 1976 Windsor Profesional.
Larry:1958 Drysdale, 1961 Gitane Gran Sport, 1974 Zeus track, 1988 Masi Gran Corsa, 1974 Falcon, 1980 Palo Alto, 1973 Raleigh Gran Sport, 1974 Legnano. Susan: 1976 Windsor Profesional.
09-22-19, 10:01 AM
#28
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Based on the photo in post #3 , you were way out of spec. The fact that you are using a Nuovo Record friction rear derailleur means that by having the bike shop use their “DAG” (derailleur alignment gauge) tool, the clattering should now be silenced.
Where you would really appreciate the proper alignment if you decided to run a 7 speed indexed rear freewheel or cassette.
It it was very satisfying to me when I got my old Saint Tropez (1980’s Japanese 126mm steel frameset, think Centurion Dave Scott Ironman) aligned. I was able to run my rear Dura Ace 7400 seven speed Uniglide cassette wheel in super reliable index mode in my 3x7 conguration.
Where you would really appreciate the proper alignment if you decided to run a 7 speed indexed rear freewheel or cassette.
It it was very satisfying to me when I got my old Saint Tropez (1980’s Japanese 126mm steel frameset, think Centurion Dave Scott Ironman) aligned. I was able to run my rear Dura Ace 7400 seven speed Uniglide cassette wheel in super reliable index mode in my 3x7 conguration.
09-22-19, 10:03 AM
#29
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I hadn't ridden one of my bikes for quite a while and decided to ride it on Friday. It became obvious that the hanger needed to be adjusted, so yesterday I adjusted it. Wouldn't shift into the biggest cog. I came to the conclusion is that the hanger was out of alignment the last time I adjusted the derailleur. The other interesting thing was that by eye, it sure looked like the hanger was bent in at the bottom. But when I measured it, it was actually bent in at the front and it was okay top to bottom. So much for doing this by eye without a gauge.
09-22-19, 11:39 AM
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Mehh.... Don't overthink this one. Just put in a wheel, clamp down the skewer nice and tight to keep the dropout faces aligned and bend out the hanger as needed with a well padded (with electrical tape on the jaw faces), big enough adjustable wrench......
The steel the dropouts are made from is ductile enough to take the very little bit bending it looks like you need to do without cracking/breaking.....
The steel the dropouts are made from is ductile enough to take the very little bit bending it looks like you need to do without cracking/breaking.....
09-22-19, 01:06 PM
#31
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Using a crescent wrench is probably OK for small adjustments and you can eyeball it, lay a straightedge across the derailleur mounting flat. Close enough is good enough in most cases. I recommend against using an allen wrench in the derailleur bolt, you might bend the bolt.
you are only looking for an adjustment of a couple degrees, so go easy and check frequently. remember you're looking for parallelism in both the vertical and horizontal plane.
Mark Petry
Bainbridge Island, WA USA
you are only looking for an adjustment of a couple degrees, so go easy and check frequently. remember you're looking for parallelism in both the vertical and horizontal plane.
Mark Petry
Bainbridge Island, WA USA
