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char Jun 13th, 02, 2:58 PM My factory "knee knocker " sicks at 3000rpm,and stays there untill you flick the face plate. Any ideas on how to fix this ?. also I recieved an old "Sun " tach with no directions. Any clue as how to wire it. ?? thxs for your help. Charlie John_Muha Jun 13th, 02, 6:54 PM Belive the Sun tach wiring is: Red: Switched 12 volts Black: Ground Green: Tach Lead White: Dash Light Not sure why your other tach is sticking. Hard for me to recommend something besides a repair shop. Maybe someone else has a better idea. char Jun 14th, 02, 11:28 AM John, thxs for your help, Should the tach lead go to the + or - side of the coil ? John_Muha Jun 14th, 02, 1:55 PM Tach wire goes to the negative (-) side of the coil. DaleM Jun 15th, 02, 9:19 PM I thought the 66's had the knee knocker tachs (bottom right of dash) while the 67's had them on the top instrument panel on the left side. http://www.chevelles.com/forum/confused.gif ------------------ TC Gold #92/ACES #1709 67 SS & 67 Elky GR8PMKN (http://www.dalesplace.com/images/chevelle/more_pics/p001182.jpg) Dale's Place (http://www.dalesplace.com) Team 67 (http://www.team67.com) Midwest Chevelle Regional Governing Council (http://www.midwestchevelles.com) Integrity: If you have it, it doesn't matter - If you don't have it, it doesn't matter. char Jun 17th, 02, 8:53 AM Dale , you are correct, my 67 has the small faced tach mounted in the upper left corner, I thought it was the same as they used in 66 with a new location, thus keeping the name. John, no luck with the "Sun Tach " working, I ran the hot directly to the positive side of the battery, just to make I had power and still no luck !!Someone told me some of the old ones needed a sending unit of some sorts. sound correct ???thxs for your help [/B][/QUOTE] Steve S Jun 17th, 02, 11:41 AM One reason for a tach needle to stick is debree in the movement. Inside the tach is a large magnet that attracts anything metallic. If you feel comfortable dissembling the tach you may be able to move the needle by hand and see where it is binding. Be careful the needle movement is very delicate and can easily be damaged. Do not use compressed air to dislodge the debree. Use tweezers or other delicate tools. ------------------ Steve Strasemeier (70SS 396, Fathom Blue/White Stripes) My 70SS (http://www.members.home.com/txss/sshome.htm) | ||