Posted by TJV on June 09, 2012 at 20:07:11 from (67.230.241.17):
In Reply to: Tach 986 posted by Help! on June 08, 2012 at 21:29:14:
If it has the digital electrical tach there is a switch that supplies it power to the tach after the tractor gets oil pressure. I have had these switches go bad. the switch is screwed into the oil gallery on the block just to the rear of the oil filters. I replaced one on our 186 about 3 weeks ago and found a switch at napa for about $8.50 and Case IH wanted about $60 for it. the napa # is OP6624 or OP6616. I like the first one it is physically shorter in size but either one will fit they and work the same.
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Today's Featured Article - Identifying Tractor Noises - by Curtis Von Fange. Listening To Your Tractor : Part 3 - In this series we are continuing to learn the fine art of listening to our tractor in hopes of keeping it running longer. One particularly important facet is to hear and identify the particular noises that our
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