Autometer Tach calibaration
07-19-2004, 10:08 AM
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Autometer Tach calibaration
Hi there i just purchused a 92 power ram 250 cummins 5 speed and installed an autometer diesel tach and was wondering how to go about calibrating it thanks any help would be great,
07-19-2004, 10:55 AM
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it says to calibrate it at highway speeds. you need to have a small flat head screw driver(eye glass repair style) and ther eis a hole on teh back side of the tach.
i just started the truck after having it checked at my local shop real quick, they told me is was at 750. so i set it there.
another way is to get it close to what you think is idle. go for a cruise and floor it, should max at 2500 rpms if itis stock. stop bump it up if needed etc...
jiMMy
i just started the truck after having it checked at my local shop real quick, they told me is was at 750. so i set it there.
another way is to get it close to what you think is idle. go for a cruise and floor it, should max at 2500 rpms if itis stock. stop bump it up if needed etc...
jiMMy
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