If DeLo speedometer is like others of its vintage: -Odometers are mechanical, driven by gears interfaced to the cable (worm gear) -Speedometer is electrical, driven by a magnet attached directly to the cable Was very common in the 1970's to make speedometer gears from plastic. Are subject to break, especially if dirt or debris gets lodged in them. Age and lack of lubrication can cause them to break their own teeth. Anything that interferes with magnet rotation will cause the needle to fluctuate. I suspect your odometer gears have broken, and are now interfering with the speedometer magnet. Bill Robertson #5939 >--- In dmcnews@xxxxxxxxxxxxxxx, "jmt1970amc" <jmt1970amc@xxxx> wrote: > Hey all, my last posting hasn't seem to have gone through, so I'm > gonna try again, sorry if you're seeing this twice. > > Thanks to all those who have sent me suggestions so far. I've > checked over the whole speedo assembly and everything looks good - > dustcap, AD, lower cable, upper cable. I was spinning the wheel with > the entire assembly connected together except for the upper cable to > the actual speedometer, and it seemed to rotate freely. It did skip > a few times while turning, but that was only like twice over the > course of turning the wheel for a whole minute. And even if it was > skipping and that was what was causing the speedo needle to > oscillate, the odometer and tripometer should still be turning > right? With the dash removed, if I take the speedometer out, is > there some way that I would be able to fix it myself, or would I be > forced into just having to buy a new one? > > Thanks again everyone, and keep the help coming! :) > James To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/