Speedometer needle sticks at 50 mph
My speedometer seems to work fine up to around 45 mph but once I get to 50 or above it sticks. Once I slow down and touch the needle it will pop back to the correct lower speed. I can feel some resistance in the needle when I manually move it between 50 and 80. I have a new cable and the odometer is accurate. The needle is not touching the face of the gauge so the resistance is internal. I tried manually moving it back and forth several times but so far that has not loosened it up enough to bounce back freely. Is there some place I can put some oil or something to lubricate the needle without causing any problems with the gauge?
69 Camaro - 327 "461X" heads, Comp Cams 280H, Holly 600cfm with LT1 intake, MSD 6AL, M-21transmission, 10-bolt 3.73:1 Posi