NR RD setup woes :(
08-15-11 | 02:57 PM
#26
Fat Guy on a Little Bike
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From: Philadelphia, PA
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Inside every Fuji fan is a Miyata enthusiast waiting for his chance!
08-15-11 | 03:07 PM
#28
The RD spring is whipped.
Keith, with NO chain installed does the cage 'snap back' when its rotated? It should take a fair amount of effort to rotate the cage by hand and it should easily, if not somewhat forcefully, spring back so that the cage stop is firmly against the derailleur body.
Keith, with NO chain installed does the cage 'snap back' when its rotated? It should take a fair amount of effort to rotate the cage by hand and it should easily, if not somewhat forcefully, spring back so that the cage stop is firmly against the derailleur body.
08-15-11 | 03:11 PM
#29
Old fart
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Here's a closeup of the RD/crank cropped out of the full-size pic above. Does this help any? Honestly, I forget what length of chain I have in here in this pics...links were a'flying last night.
And yes, that is a makeshift RD housing until I get a real one...I just wanted to try to get chain length set
And yes, that is a makeshift RD housing until I get a real one...I just wanted to try to get chain length set
Last edited by JohnDThompson; 08-15-11 at 03:21 PM.
08-15-11 | 04:30 PM
#32
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If it's a pulley cage tension problem, it should be an easy fix. Just remove the stopper bar (I think theres a slot on the tip to use a screw driver on) on the knurled barrel next to the pulley cage that keeps the cage from spinning back and wind in some tension by spinning the pulley cage assembly counter clockwise. reinstall the stop when there is enough tension again. Unless the lower pivot tension spring is broken, this should fix your tension problems.
Chombi
Chombi
They work great
08-15-11 | 05:05 PM
#34
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Do you have room to move the wheel back in the dropout? That has the effect of taking up chain slack, about a half a link total. I'd also suggest showing a picture in the big-big position, I'd like to see if the cage rotation looks right. Finally, it's possible the cage pivot was disassembled and reassembled in the wrong position, or the rotation stop is wrong somehow (a long shot).
I think your idler and jockey wheels look great.
Edit, I think it should have been small-small, like in post 8.
I think your idler and jockey wheels look great.
Edit, I think it should have been small-small, like in post 8.
Last edited by Road Fan; 08-15-11 at 05:23 PM.
08-15-11 | 05:13 PM
#36
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From: Ann Arbor, MI
Bikes: 1980 Masi, 1984 Mondonico, 1984 Trek 610, 1980 Woodrup Giro, 2005 Mondonico Futura Leggera ELOS, 1967 PX10E, 1971 Peugeot UO-8
I wish I had more experience with older Campy stuff. I have found that on some frames the Campy RD will affix to the drop out solid & not movable. Other frames the Campy RD will hang loose or movable.
Am I assuming that a correctly mounted RD should hang free to move for & aft. The cage spring pulls the chain & RD to the correct position. This requires a pretty strong spring.
Someone correct me if that is incorrect.
Am I assuming that a correctly mounted RD should hang free to move for & aft. The cage spring pulls the chain & RD to the correct position. This requires a pretty strong spring.
Someone correct me if that is incorrect.
08-15-11 | 05:33 PM
#39
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Well, I didn't have the heart to hang Shimano or Suntour on the Italvega...and before I really bash Campy for real I suppose I'd better ride it some 
If I don't like it there may be a VERY nice Italvega Super Speciale in the for sale forum!
If I don't like it there may be a VERY nice Italvega Super Speciale in the for sale forum!
08-15-11 | 05:34 PM
#40
Death fork? Naaaah!!
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From: The other Maine, north of RT 2
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You know it's going to be a good day when the stem and seatpost come right out.
(looking for a picture and not seeing it? Thank the Photobucket fiasco.PM me and I'll link it up.)
You know it's going to be a good day when the stem and seatpost come right out.
(looking for a picture and not seeing it? Thank the Photobucket fiasco.PM me and I'll link it up.)
08-15-11 | 05:52 PM
#42
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From: Ann Arbor, MI
Bikes: 1980 Masi, 1984 Mondonico, 1984 Trek 610, 1980 Woodrup Giro, 2005 Mondonico Futura Leggera ELOS, 1967 PX10E, 1971 Peugeot UO-8
Sheesh. You should just go to the I-Hate-Campy subforum.
08-15-11 | 06:09 PM
#43
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From: Woodbury, MN
BTW, I couldn't find that subforum, have a link?
08-15-11 | 07:43 PM
#44
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Well, it wasn't the spring. Here's a video of the RD to demonstrate the spring tension:
I replaced the chain with an SRAM PC830 just for grins after working on the length a little more...much better now, both in terms of length and shifting.
I really wanted to use that KMC chain...the RD just must not have liked it...no wear at all according to the gauge.
I replaced the chain with an SRAM PC830 just for grins after working on the length a little more...much better now, both in terms of length and shifting.
I really wanted to use that KMC chain...the RD just must not have liked it...no wear at all according to the gauge.
08-16-11 | 12:23 AM
#45
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From: Minneapolis
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Just looking things over through your photos it seems you needed still a couple more links taken out of the chain. I've found older derailleurs seem to want to run with quite a bit more tension in the system than the modern units do. I certainly get crisper shifting when I have more tension in the system, anyway; and if you're getting good results with SRAM chains, that's nothing but good news for the rest of us.
08-16-11 | 12:35 AM
#46
Tyrannosaurus Rexitis
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I use the least amount of chain I can get away with in small/small to have the RD cage not drag on the chain. That always works (disclaimer: I don't own any wide range freewheels, or triples. Just narrow range doubles like the OP's.)
Not sure why it wouldn't like the chain. My patent '74 NR RD shifts anything, even a 10s Shimano 6701 chain.
Not sure why it wouldn't like the chain. My patent '74 NR RD shifts anything, even a 10s Shimano 6701 chain.
08-16-11 | 05:08 AM
#48
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From: Ann Arbor, MI
Bikes: 1980 Masi, 1984 Mondonico, 1984 Trek 610, 1980 Woodrup Giro, 2005 Mondonico Futura Leggera ELOS, 1967 PX10E, 1971 Peugeot UO-8
Well, it wasn't the spring. Here's a video of the RD to demonstrate the spring tension:
I replaced the chain with an SRAM PC830 just for grins after working on the length a little more...much better now, both in terms of length and shifting.
I really wanted to use that KMC chain...the RD just must not have liked it...no wear at all according to the gauge.
I replaced the chain with an SRAM PC830 just for grins after working on the length a little more...much better now, both in terms of length and shifting.
I really wanted to use that KMC chain...the RD just must not have liked it...no wear at all according to the gauge.
08-16-11 | 07:11 AM
#49
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Those derailleurs were made to work with a wide, stiff, chain, the old Reginas. They will shift better with a freewheel with a modern tooth, like a Sachs or Shimano, but that 6-speed chain should be what it was made for. Length is the issue, not chain type. A narrower chain should require more overshift, anyway.
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