Thread: OM617A Tach Amp
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  #14  
Old 04-20-2008, 11:53 PM
Manfred Manfred is offline
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Join Date: Jan 2008
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Quote:
Originally Posted by pawoSD View Post
I also did a millivolts test while I was at it (did every test the meter can do) and all resulted in a "No Reading"/ 0 on the display....so I'm going to call it dead.
I had the same problem with my 300D. Sometimes it would work but mostly not. When testing it I would get the right ohm readings but apparently it was bad enough so that it didn't work with the vibrations from the engine while running. After getting a new amp from Bob It worked better but I still had problems with wild mood swings of the tach needle. After replacing the sensor which, after getting it out, turned out to be kind of messed up at the tip. With the new sensor the tach works great. I especially like that test swing. Lets me know right away that at least the amp and tach are good to go. Thanks Bob.


Manfred
63 E type coupe
73 IH 125C
83 300D
84 BMW R100
91 Chevy G20 w/6.5 NA
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