Re: 69 Camaro Volt Gauge
Check gauge by itself as Scott & others suggested across battery or an external battery charger. Voltmeter will either work or not.
Harbor Freight sells a 2" voltmeter for less than $10 and nice tool to have.
As far as connecting voltmeter, hook it to the ACC spade on the fuse panel and dash ground, this way power is to the gauge when ign key is in ACC, START, or IGN.
The OE designed ammeter is actually a millivoltmeter and shows the polarity of voltage (discharge/charge) and the amount of difference of voltage between two points.
These two points are horn relay buss bar and the battery junction block on the radiator support - the red #10 AWG wire is the subject of the measurement. OE wire harness uses 16 AWG wire.
Aftermarket ammeters are shunt meters and yes, current flows through it thus needing the big gauge, 10 AWG and smaller, ie, #8, #6, etc. harbor Freight sells 50-0-50 ammeter and a good place to install is on a copper strip, 1/8 inch thick, at the battery junction block. Remove cable pigtail, install ammeter on strip, attach cable pigtail onto gauge, done. Turn on lights, ammeter should show discharge. If not, reverse gauge hookup. Ammeters function since time, measures battery charge/discharge only. Best device in checking battery function.
Give a man a rescued dog for the health of both their souls. May 2017 ROTM Winner - Thank you!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
CUBS - 2016 World Series Champions - Thank you, Joe Madden … enjoy your next chapter.