ground idea

[taintedplay 10+ year member]

ok, i have a bolt going through my cargo area for ground. but, its a hard ass spot to get from the bottom if i want to change it. can i bolt it in with a nut like normal, then have the ring terminals, then anohter nut? so i leave the bottom nut in always and just move the top nut. would that give it enough surface area?

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[Gebrochen 10+ year member]

yeah, just sand any paint or coatings off the nuts and both sides of the surface you are bolting it too.

 

[taintedplay 10+ year member]

oh, and i read it somewhere but forgot where, how do i test if its a good ground with a dmm?

 

[smoka 10+ year member]

oh, and i read it somewhere but forgot where, how do i test if its a good ground with a dmm?

Get a good meter and set it to ohms. Touch both leads together and note the resistance (should be 0 or near 0). Then touch one lead to your batt - and the other lead to your ground spot. The reading should be near 0 ohms if it is a good ground.

You could always just make a new ground. Just grind off some paint and use one of these self-tapping screws. Just be careful of your gas tank.

 

[taintedplay 10+ year member]

ugh, i only have my front batt at the moment and my grounds in the back. cant reach :/

 

[Gebrochen 10+ year member]

Set your meter to volts. Touch one lead of the meter to the ring terminal and the other to a metal spot a few millimeters from the bolt. Crank your system up high and see if you read any voltage. Any voltage means you're getting a voltage drop across that spot. There is always going to be *some* voltage drop. As long as it's on the order of hundreths of a volt, I wouldn't worry.

This will only work under high load.

 

[Sudden_Impulse 10+ year member]

You could always just make a new ground. Just grind off some paint and use one of these self-tapping screws. Just be careful of your gas tank.

Self tapping screws for grounds = gay

 

[Gebrochen 10+ year member]

Get a good meter and set it to ohms. Touch both leads together and note the resistance (should be 0 or near 0). Then touch one lead to your batt - and the other lead to your ground spot. The reading should be near 0 ohms if it is a good ground.

This method wouldn't work. If you have a poor connection somewhere, you'll still read near 0 ohms even if only the very edge of your terminal is making a connection. Once you put that small area of connection under load, then your problems will appear.