Not sure why. It's fine up to 30 mph, after that it makes all kinds of noise and the needle bounces back and forth. I'm using the stock '93 Mustang speedo cable. It fit really well. Only a couple of inches too long (which I compensated for under the car) and the inner part that spins and mates to the speedo is the same size and shape (square) as the speedo. It's inserted well into the speedo too. The outer metal sleeve fits snugly on the speedo but I used a 1/2" FI clamp to secure it firmly. It's not loose. Does the speedo/odometer need to be lubed? If so, with what and how do I go about doing that? Just trying to address all the little issues that pop up after a full restoration.
Maybe a dumb question, but did you lube the length of the inner cable before you inserted it in the outer cable?
Speedo is Not hard to dis***emble, but need to be removed from dash. One thing of caution,. When installing the plastic face back on the housing, the 2 screws at the bottom will crack the plastic if tightened to tight. Ask me how i know. Took 3 speedos to get everything right. Good luck Oh ya you can turn the odometer back to ) if u want at the same time
As pointed out, taking the speedo apart to lube it can be tricky and can result in damage to it. I would try first removing the inner cable from the housing clean it well (as it sounds like you are using a used cable), lube the entire length of the inner cable as shown in Rev's video, ***emble the cable, hook it back up and see if that solved the problem.
Well, I disconnected the cable from the speedo and tied it to the front of the dash so I could observe it while driving. The inner cable spun freely and it was completely silent. I really think the noise is coming from the gears inside the speedo when it's turning. Sure wish there was some kind of way to lube 'em.
Most Ford speedos have a small oil hole at the top. If you can get to it, apply a SMALL amount of a light oil, like 3 in 1 oil.. Otherwise, remove it and oil.
Get in touch with Rusty @e1956v at Speedometer Service in Colorado. He can get it sorted for you. He sold me a NOS unit for my '54 Ranch Wagon and made up the cable to connect it to an AOD. Also repaired the SW unit in my '39 p/u. Speedometer, Generator And Alternator Repair In Colorado Springs (speedoservice.com)
Thanks you guys! I'll try Paul2748's method first and if that doesn't work I'll take 51504bat's suggestion and get in touch with Speedometer Service in Colorado.
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