 how to test alt, with this volt measuremometer ? |
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| jimkelly |
 Oct 4 2007, 09:34 AM
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#1
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Delaware USA  Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region  |
and how to i test battery?
my car barely turns over when i turn the key but it always starts - but just barely. is it my alternator, my battery, or my starter, or other ?? jim Attached image(s) 
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| SLITS |
Oct 4 2007, 02:11 PM
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"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None  |
If I am reading the scales correctly ... your battery voltage (not running) is 33 VDC and running it is 37 VDC .... so the alt is working.
However, I don't think your meter is set correctly. Does the indicator needle set on "0" when not connected to anything? If not, you have to zero the needle with the screw on the front face of the multimeter. It should read in the range of 12 VDC to 14 VDC (on the 50 scale) (assuming the voltage regulator is working correctly). EDIT: If you zeroed the meter using the right hand zero you need to zero the meter using the left hand zero. Reading from right to left the readings would be 17 VDC at rest and 14 VDC running, which would indicate the alternator is not functioning. To many problems here... the meter appears to be reading incorrectly ... I need an aspirin. |
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Posts in this topic
jimkelly how to test alt Oct 4 2007, 09:34 AM
ClayPerrine Using a volt meter (a digital one is easier to use... Oct 4 2007, 09:45 AM jimkelly do i have the dial on the right setting?
do i loo... Oct 4 2007, 09:55 AM ClayPerrine Yes... you have it set right. Now you have to fig... Oct 4 2007, 09:58 AM Cap'n Krusty "is it my alternator, my battery, or my start... Oct 4 2007, 10:07 AM
jimkelly cap'n - YOU FUNNY : )
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"is it my al... Oct 4 2007, 12:57 PM jimkelly my car is 1975 914 with 1973 2.0 engine
here is a... Oct 4 2007, 01:52 PM jimkelly i gotta get a me a good meter - this one is fine f... Oct 4 2007, 04:31 PM Dave_Darling Cheapie Rat Shack $20 digital multimeters are... Oct 4 2007, 10:33 PM Rand Even one of these $3 Harbor Freight specials ... Oct 4 2007, 10:50 PM |
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