My 1981 InLine 6 is making a scrubbing scraping noise that is intermittant. It starts very slowly with speed and gets to be constant as speed increases. Also, no noise at idle. It is not wheels scraping and does not appear to be tied to the rotation of the tires or belts as it would do this at idle. What I need to know is..... Could it be the speedo cable? If so, can you lubricated it? And How? Any suggestions welcome!
81ChevyChenne