Bike Forums - View Single Post - Dura ace brifter weak return

07-15-13 | 07:48 PM

#4

gaucho777

Senior Member

Joined: Aug 2009

Posts: 7,721

Likes: 4,147

From: Berkeley, CA

Bikes: 72 Cilo Pacer, 72 Gitane GT, 72 Peugeot PX10, 73 Speedwell Ti,l, 75 Peugeot PR-10L, 80 Colnago Super, 81 Zinn, 85 ALAN Cross, 85 De Rosa Pro, 86 Look 753, 86 Look KG86, 89 Parkpre Team, 90 Parkpre Team MTB, 90 Merlin

I have had very little experience with brifters. That said, I had success with a Shimano 600 lever that didn't want to return/downshift. First, I removed the lever from the body. Then I flushed the lever with WD-40 while working over a small plastic tray to collect the extra WD-40. When I had enough run-off WD-40 to submerge the top portion of the lever in the corner of the tray, I left the lever submerged in WD-40 for a few hours, or maybe overnight. Then I let it drip dry, and soaked it in Mobile 1 synthetic oil for a few more hours, dripped dry again and wiped clean, then reassembled.

Here's a nice photo driven how-to (may be slightly different for a Dura-Ace brifter):

http://imgur.com/a/0tPBK

I thought I was going to need to try a full service, but all I needed was to get rid of the old gummed-up grease (soaking in WD-40) and add fresh oil. Worked like a charm.

__________________
-Randy

'72 Cilo Pacer (x2) • '72 Peugeot PX10 • ‘72 Gitane Gran Tourisme • '73 Speedwell Ti • '74 Motobecane Grand Jubile • '74 Peugeot UE-8 • ‘80 Colnago Super • ‘81 Univega Super Special • ‘82 Zinn • ‘84ish Mystery Custom • '85 A.L.A.N Cyclocross • '85 De Rosa Pro • '86 Look Equipe 753 • '86 Look KG86 • '89 Parkpre Team Road • '90 Parkpre Team MTB • '90 Merlin Ti

Avatar photo courtesy of jeffveloart.com, contact: contact: jeffnil8 (at) gmail.com.

Reply

0