Hot starts sometimes struggle on the 63 Avanti as if battery is weak; but it's OK. Friend says that cable size, condition and overheated starter could be factor but they are new and clean. Perhaps cables are under size but can not find size reference in manuals. What size size should they be? Ken, Deltaville, Va
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Nice cables are available from Tractor Supply. cheers jimmijimsigpicAnything worth doing deserves your best shot. Do it right the first time. When you're done you will know it. { I'm just the guy who thinks he knows everything, my buddy is the guy who knows everything.} cheers jimmijim*****SDC***** member
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Only one actual answer...
Some of the size depends on the actual cable, the length, the compression ratio, ignition timing. Age..? Older cables can have corrosion within seemingly fine insulation that will mess with the power transmission
As Raoul said, in most cases where the cable is no more than 2ft. long, 02 is fine for the positive and an 01 for the ground.
The ground should go from the battery to engine, and back to the frame on a plastic car. Five or more grounds on any fiberglass car is a good thing. Grounding is more important thAn many realize. Things working and things working properly are two different things.
The longer the cable run, the larger the cable needs to be.
Clean, tight, no corrosion...
Mike
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For 12 volt a #4 will work, or a bigger #2 would be better.
Factory was probably a #6. Big enough, barely. Factory always used the smallest size to do the job.
For 6 volt a #1/0 [0] will be good.
#2/0 [00] is bigger and better.Last edited by 55 56 PREZ 4D; 05-24-2014, 11:21 PM.South Lompoc Studebaker
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Originally posted by 55 56 PREZ 4D View PostFor 12 volt a #4 will work, or a bigger #2 would be better.
Factory was probably a #6. Big enough, barely. Factory always used the smallest size to do the job.
For 6 volt a #1/0 [0] will be good.
#2/0 [00] is bigger and better.Chip
'63 Cruiser
'57 Packard wagon
'61 Lark Regal 4 dr wagon
'50 Commander 4 dr sedan
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As alluded to, length x diameter is what matters. If the battery is in the original location, the recommended gauges will work fine.
All my Studes have the battery in the rear and thus a new 00 cable running forward. Last one I made for my pickup project, I found a great deal at a welding supply house. They make custom welding leads and had an area for leftover random lengths. The cost was less than half of regular retail. The per-foot retail price for good cable is guaranteed to cause apoplexy in CASOs. The aforementioned Anchor 2/0 is about $12 a foot.
jack vinesPackardV8
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I submit that a voltage drop test while cranking will clearly show which of the existing cables AND connections are adequate,and which need atttention and also would reveal any of the hidden defects described by others when cables of "proper" size are invisibly compromized by internal corrosion or physical damage, and the necessity and effect of adding secondary ground straps. Also, it will determine with certainty if the quality of a new freshly installed cable is suspect (which most new parts these days are).
Not bad for 4 minutes work with a $10 multimeter and a helper.
reards,
Dan T
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