Russ F6 Member 641 Member For: 19y 7m 16d Gender: Male Location: Newcastle NSW Posted 15/12/08 06:39 AM Share Posted 15/12/08 06:39 AM Yeh I don't think you needed to run the black negative cable from engine bay. Just use a ground from the boot and keep your cable lenghts to a minimum. Link to comment Share on other sites More sharing options...
scar Donating Members 177 Member For: 17y 5m 18d Posted 15/12/08 06:52 AM Share Posted 15/12/08 06:52 AM Try a closer eath connection mate, that could be the problem. Link to comment Share on other sites More sharing options...
typhoon_freak Cryptic Clothing Company Donating Members 4,556 Member For: 16y 6m 19d Gender: Male Location: Brisvages, Capalaba Posted 15/12/08 07:41 AM Author Share Posted 15/12/08 07:41 AM yeah, otherwise the can runs fine when its running.. just twice now the speedo has stoped working.. would that be caused with this aswell? Link to comment Share on other sites More sharing options...
MaTTe Member 143 Member For: 16y 2m 28d Location: Perth Posted 15/12/08 09:07 AM Share Posted 15/12/08 09:07 AM yeah mate Rapid's explination sounds spot on.It does sound like you're getting some voltage drop, but also a bad earthing.You really want to have the earth as close to the battery as possible. Just sand some paint off (get the metal nice and shiney) then bolt the earth to the body, do the same in the engine bay. I'm guessing you don't have the spade bits on each end, but ideally you want one in the engine bay and one in the boot for your new eathing bolts to go thru, and preferably file the face or hit it with a wire brush for extra security.You may find that the battery needs a higher CCA rating, but I'd doubt it unless you have installed a new battery with a lower rating than standard.It's a pretty quick and easy fix to sort out the earths, you can leave the wire that runs front to back in while you test it. I'd say you'll be taking the cable out though.. Link to comment Share on other sites More sharing options...
dmosconi Member 97 Member For: 17y 5m 28d Gender: Male Location: Perth WA Posted 15/12/08 09:26 AM Share Posted 15/12/08 09:26 AM Hey typhoon_freak, I'm a sparky and autosparky, the problem is the earth length, the earth needs to be as short as possible so the return path does have far to travel, the longer the cable the more resistance the more problems you will create, the positive cable can be any length but the longer the run of cable the bigger it will have to be.Bolt the earth from original battery to the body and the new battery to the body and the problems should by rights go, unless you have nicked the new battery cable somewhere along the new run and that is going to earth.If you don't want to bolt the earth to the body, you will need to run a earth 3 times the size of positive from original battery to new battery, the earth return always carries more current than the positive, that is why is needs to be huge in size or as short as possible.Good luck mate. Link to comment Share on other sites More sharing options...
typhoon_freak Cryptic Clothing Company Donating Members 4,556 Member For: 16y 6m 19d Gender: Male Location: Brisvages, Capalaba Posted 15/12/08 09:58 AM Author Share Posted 15/12/08 09:58 AM (edited) SWEET! I shall do exactly that tomorro. thanx heaps for that guys.. owe u a beer or 2 at the pub Edited 15/12/08 10:00 AM by typhoon_freak Link to comment Share on other sites More sharing options...
Russ F6 Member 641 Member For: 19y 7m 16d Gender: Male Location: Newcastle NSW Posted 15/12/08 10:11 AM Share Posted 15/12/08 10:11 AM Im free from around 4pm tomorrow if that is any good. Link to comment Share on other sites More sharing options...
RAP1D Member Donating Members 3,739 Member For: 18y 8m 9d Gender: Male Location: Sydney NSW Posted 15/12/08 12:03 PM Share Posted 15/12/08 12:03 PM Yeah fix up the earth and you should be sweet mate. Link to comment Share on other sites More sharing options...
Dirty32 Legendary member!! Donating Members 1,739 Member For: 18y 7d Gender: Male Location: Dianella, West Oz Posted 15/12/08 01:35 PM Share Posted 15/12/08 01:35 PM Should of got the Airbox with Dry cell battery Link to comment Share on other sites More sharing options...
dmosconi Member 97 Member For: 17y 5m 28d Gender: Male Location: Perth WA Posted 16/12/08 06:58 AM Share Posted 16/12/08 06:58 AM That's the way I'll be going, moving the battery can cause problems later down the track. Still it's good if you what to upgrade the sound system, dont need much battery cable. Link to comment Share on other sites More sharing options...
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