Anyone elses overhead compas wrong?
06-03-2013, 07:38 PM
#1
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Location: Yuma, AZ....yes the 3:10 came here
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Year: 1998
Model: Cherokee
Engine: 4.0
Anyone elses overhead compas wrong?
I'm heading almost due west and it says I'm gong North west. I'm fact I'm MUCH closer to going south west.
06-03-2013, 07:46 PM
#3
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Year: 1995
Model: Cherokee
Engine: 4.0 HO
Have you tried setting the variance (holding down ((or in this case.. UP)) both the metric and comp/temp buttons for 10 seconds)? Then going through calibration?
06-03-2013, 08:19 PM
#4
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Any magnetic compass will almost never read true "geographic" north. The field is distorted by your local geology. Each area has it's "declination", (like topo lines on a map). And it changes! Here it was 19- 1/2 *, (forget east or west), in 1980. IIRC now it's 16 something. It drifts, at least here! You can google that for your area.
Anyway I know nothing about a Jeep compass. Calibration, (as mentioned makes sense). I guess on boats they need to that. Metal and electric fields change the reading.
Anyway I know nothing about a Jeep compass. Calibration, (as mentioned makes sense). I guess on boats they need to that. Metal and electric fields change the reading.
06-03-2013, 09:29 PM
#5
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Year: 1999
Model: Cherokee
Engine: 4.0
There is a procedure to recalibrate the compass in the owners manual. There is also a chart/map with a number to enter to identify where in the world you are to adjust the geodetic north variations.
Unfortunately I no longer have an owners manual to provide the details.
Unfortunately I no longer have an owners manual to provide the details.
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