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> Tachometer wiggle, Just started yesterday
BiG bOgGs
post Jan 17 2008, 05:56 AM
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The Bogus One
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Yesterday while on the way to and from work my tach needle started to wiggle upwards from its usual reading of about 3400 rpm. Until yesterday I had no problems at all.

On the way home I noticed that if I was under moderate acceleration or deceleration the tach read steady. When I was cruising at a constant speed is when the wiggling would start.

Any suggestions on how to track down the problem and fix it? (IMG:style_emoticons/default/poke.gif)


Jim
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Spoke
post Jan 17 2008, 03:04 PM
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Jerry
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Sorry, don't have any 2000uF caps. Just a few 3300uF ones but I would not use them again. Radio Shack has 2200uF caps. Voltage rating for the tach is low so a cap with greater than 10V is ok. Maybe Fry's or other electronic component shop.

Since caps this big are electrolytic and are polarized, you will have to test the tach with the face off to determine which side of the winding is positive. Maybe someone knows off-hand which side is pos and which is neg.

If you like a solid tach this little addition will knock your socks off and put a smile on your face.
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