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  #1  
Old 05-01-12, 20:43
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cletrac (RIP) cletrac (RIP) is offline
David Pope
 
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The battery cables should be about as big around as your little finger. What's that in metric?
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  #2  
Old 05-01-12, 21:08
Lauren Child Lauren Child is offline
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Thanks chaps, She is indeed still 6 Volt.

Little finger size is maybe a bit bigger than what she has, depending on who's pinky you are looking at
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  #3  
Old 06-01-12, 00:31
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Ken Hughes Ken Hughes is offline
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Hi Lauren,run a new heavy battery cable from the earth end of the battery earth chassis mount,to your bell housing near as possible to the starter motor.
I had advice from Alex Blair on this site,and it works a treat!!,just like 12v.
Do that first before anything else as that will eliminate any earthing problem.
My F30 was having the same trouble as you are having and this fixed it.
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  #4  
Old 06-01-12, 02:09
Lynn Eades Lynn Eades is offline
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Default Buying cable

If you can, buy cable with lots of fine strands, rather than a cable with a few heavy strands. Welding cable is good because it employs many fine strands. It remains flexible, and with its good cross section, a great current conducter.
I suggest you follow closely what Kenny has suggested. It is well known that many Jeeps(amongst others) have suffered this same problem.
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  #5  
Old 06-01-12, 17:23
Phil Waterman Phil Waterman is offline
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Default Cable Clamps and Protect the Cable

Hi

Lynn and Ken's point about the welding cable are on the mark. Adding a ground cable from the battery ground to the chassis to the engine will cure a lot of problems. I've gone over to generally making my own cables using heavy welding cable or heavy fine wire cable from electrical supplier. While your at it get the lug ends from them I like to crimp the lugs on to the cable and while they are nice and clean solder them as well for the best electrical conductivity.

Be sure though that when running your power side of the cable that you use cable clamps to keep the cable in place. Check your routing to be sure of any points were it rubs against anything. One problem with the welding cable that I have encountered is that the insulation is little softer than I'd like and is prone to wearing through. I had a cable fire because of this on a new installation, my own fault didn't have enough cable clamps.

When I replaced the cable after the fire I slid a section of hose over it at the wear point.

Cheers Phil
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  #6  
Old 06-01-12, 18:00
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Ken Hughes Ken Hughes is offline
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Clamping and insulating the cable is a good point Phil.
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  #7  
Old 06-01-12, 19:32
Lauren Child Lauren Child is offline
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Thanks folks!

I had spotted the welding cable and wasn't sure, but I'll give it a go with some conduit in the important places

Any ideas for the best way to get at the switch and starter motor? The switch in particular looks like it's in a particularly awkward spot.

TTFN
Lauren
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