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  #1  
Old April 16th, 2008, 16:53
T3hk1w1 T3hk1w1 is offline
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BAttery clamps troubles

I've got kind of an odd issue here. I am replacing my battery cables, and the new clamps I got are too large for the posts on the battery. When fully tightened there is not enough contact to allow the engine to start. I had to shove some stripped 12 gauge wire between the post and the clamp just to get the engine to start. Any suggestions? The clamps are military-style from O'reillys, and the battery is a cheapo from Walmart that came with the Jeep. Replacing the battery is not currently an option...
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Old April 16th, 2008, 17:33
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Ramsey Ramsey is offline
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Re: BAttery clamps troubles

Well if two things don't fit together, and you know you're not gonna replace one, pretty clear you gotta replace the other. You could always just leave it 'rigged up, but why would you?
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Old April 16th, 2008, 18:02
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Starboard D Starboard D is offline
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Re: BAttery clamps troubles

I have seen steel wood screws used between the post and where the bolt goes through the clamp, but it is very ghetto... who knows how long that will hold...
next time, measure....

good luck
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Old April 16th, 2008, 18:07
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85xjproject 85xjproject is offline
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Re: BAttery clamps troubles

maybe they sold you the wrong wires? did you compare them to the old ones before installing them?
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Old April 16th, 2008, 18:54
T3hk1w1 T3hk1w1 is offline
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Re: BAttery clamps troubles

:P They are brand-new clamps... at $6 each I really hate to just toss them...
The wires aren't at fault, I just finished making them
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Old April 16th, 2008, 18:56
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90Blue_XJ 90Blue_XJ is offline
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Re: BAttery clamps troubles

Take your new clamps off and contour them with a hammer for now then replace them on your next trip to the parts house (O'Reilly's) or just place a strip of aluminum over the battery post and tap the new clamps down over that forming a sort of bushing until the proper size can be found.
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Old April 16th, 2008, 19:00
T3hk1w1 T3hk1w1 is offline
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Re: BAttery clamps troubles

Hmm...I've been trying to figure out where I might find a strip of copper for just that purpose, aluminum might work though. I may just get a cheap set of clamps and put these back on when I upgrade to a decent battery. Going to the store again tommorow anyway...
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Old April 16th, 2008, 19:03
WB9YZU WB9YZU is offline
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Re: BAttery clamps troubles

I don't know what "Military Type" Battery clamps are, but the local farm implement store sells two kinds of clamps, the lead ones with a clamp for the cable, and steel ones with a post and spade lugs to attach your copper cables. Over the years, I have found the lead ones suck badly, so I went with the steel ones. Very nice. The local truck equipment store also sells solder on brass clamps which are very nice also.

If you won't replace the battery to fit the $6 clamps, then you best replace the $6 clamps to fit the battery.

Ron
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Old April 16th, 2008, 19:08
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90Blue_XJ 90Blue_XJ is offline
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Re: BAttery clamps troubles

Quote:
Originally Posted by Zuki-Ron
I don't know what "Military Type" Battery clamps are, but the local farm implement store sells two kinds of clamps, the lead ones with a clamp for the cable, and steel ones with a post and spade lugs to attach your copper cables. Over the years, I have found the lead ones suck badly, so I went with the steel ones. Very nice. The local truck equipment store also sells solder on brass clamps which are very nice also.

If you won't replace the battery to fit the $6 clamps, then you best replace the $6 clamps to fit the battery.

Ron
Ron the military type refers to the type with a bolt that you can attach multiple cable ends to. Like the posts on marine batteries with the butterfly nuts for quck attachment/detachment points.
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Old April 16th, 2008, 19:56
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magimerlin magimerlin is offline
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Re: BAttery clamps troubles

Are you using the clamps that we spoke about. The ones I posted in this thread... http://www.naxja.org/forum/showthrea...hlight=battery Your battery posts might be worn out if the old terminals have been on and off and overtightened a bunch of times. We(O'Reilly's Auto) have battery post shims. They fit over the battery post then you put on the terminal on like you would normally. I might be safer then sticking pieces of wire in the to tighten it up. Here is a pic of the military style terminals on my install.
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Old April 17th, 2008, 14:05
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89Daytona 89Daytona is offline
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Re: BAttery clamps troubles

Quote:
Originally Posted by magimerlin
. We(O'Reilly's Auto) have battery post shims. They fit over the battery post then you put on the terminal on like you would normally. I might be safer then sticking pieces of wire in the to tighten it up.
I've used those before (they worked well), they are way better than using a screw jammed between the clamp and post. They are basically a cap that covers the entire post making larger.

Putting a new end on the cable would probably be the best solution although the caps are probably only a dollar or two cheaper.
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  #12  
Old April 17th, 2008, 15:42
T3hk1w1 T3hk1w1 is offline
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Re: BAttery clamps troubles

Yeah that's the clamp I was using. I just went back to o'reiilys and got a set of brass marine-style terminals, now it starts up fine but is idling rough, and at 450-500 RPM instead of it's normal 800RPM

By the way, can anyone tell me if an AMG fuse (150amp) marked "32v" can be used in a 12 volt system?
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