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Fixerupper 05-26-2012 04:50:14 100.42.82.164 Report to Moderator	I was about to mention the pressure switch but you found it. If you want to, you can put a jumper in the plug that plugs into the pressure switch to bypass the switch. Then search around and find where the power wire gets it's power and move it to a switched location instead of steady hot. That way the tach comes on whenever you turn on the ignition switch. It's been so long ago that I did that to my 1086 I've forgotten which wire it is but it's not too hard to do. If I remember right, you do it by the fuse panel. Jim [Reply]   [No Email]
Jon Hagen 05-26-2012 19:25:42 69.26.17.61 Report to Moderator	Re: 1086 IH Digital Tach will not work in reply to Fixerupper, 05-26-2012 04:50:14   Thanks guys, I did not realize that the tach was powered from an oil pressure switch on a 1066. Anyone know why that was done instead of powering it from the ignition switch ?? I ran into that on later 14 series IH combines where the electro hydraulic valves were powered from an engine oil pressure switch so the reel or header drop hydraulic functions would not work if the engine was not running. [Reply]  [No Email]