Join Date: Mar 2017
Location: Manitou Springs, CO
Lower Speedo Cable Connection to O2 Sensor Counter
Among the handful of issues I encountered on my drive home with the '85 Veloce from Bozeman was an increasingly jumpy speedo needle with related noise from under the dash noticeable at low speeds. I disconnected the upper cable from the O2 sensor counter but was still hearing the 'flapping' noise due to the lower cable not turning smoothly.
Since I can't easily get the car up on stands right now (garage space is tight ), I wanted to try getting the cable out from the top first to lube it. But when I went to unscrew the threaded collar, I found it was being held in place by a zip tie wrapped in a figure-8 over the top of the counter. I initially thought this was an anti-tamper device, but after cutting it off discovered that it was holding the collar in place. I was able to pull the cable housing off the counter with a brass bushing still threaded into the collar.
Is that bushing supposed to be locked into the counter or is it meant to be part of the cable housing and held into the counter by a set screw or something? The lighting was poor, and I didn't have an inspection mirror handy so I couldn't get a good look at the bottom of the counter. I can replace the zip tie if necessary, but wanted to understand how it would have been secured originally.
I understand that a lot of owners replace the two-piece cable with a single cable, bypassing the counter for the O2 sensor. For the time being, I'd like to keep everything original, and not have to buy a cable if a little lubrication will fix it for the short term.
Last edited by BrundleFly; 09-10-2017 at 10:02 AM.