Author Topic: questions on charging, Alt, Reg Etc  (Read 3755 times)

Offline dodj

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Re: questions on charging, Alt, Reg Etc
« Reply #15 on: December 09, 2011 - 08:51:21 PM »




What if this occurred? Would not a fuse at the battery be appropriate :clueless:
That would be the same as the stud on your starter relay coming loose. It's not fused either. It comes down to the length of wire from the battery. Is the extra 36" a risk? If you consider it a probable cause of a fault, fuse it. It's like the priest's holy water. Might not help, but it won't hurt. IMO, the wire to your starter is much more likely to be the source of a problem. It regularly carries VERY high current and comes close to your exhaust manifold/hedder, is unprotected, and large enough gauge wire to really carry some serious fault current.  :2cents:
Scott
1973 Challenger  440 4 spd 
2007.5 3500 6.7 Cummins Diesel, Anarchy tuned.
Good friends don't let friends do stupid things. ........alone.




Offline GoodysGotaCuda

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Re: questions on charging, Alt, Reg Etc
« Reply #16 on: December 10, 2011 - 07:29:53 AM »
So a fuse would simply protect that section of wire between the two sources?

 What if this occurred? Would not a fuse at the battery be appropriate :clueless:

I'll bet that aftermarket wire goes straight to the battery. If that stud shorted to the casing of the alternator, you'd have a fire on your hands pretty quickly..
Build Page: Goody's 'Cuda Build Page
1976 Dodge Warlock
1972 Barracuda - 5.7 Hemi + T56 Magnum

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Offline dodj

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Re: questions on charging, Alt, Reg Etc
« Reply #17 on: December 10, 2011 - 09:16:20 AM »
What if this occurred? Would not a fuse at the battery be appropriate :clueless:

I'm thinking the only way that could happen is if you are working in the engine compartment and accidentally hit the O/P stud with a ratchet. Pretty hard. Appears to be a staged photo to exhibit a highly unlikely scenario. Certainly didn't break from over tightening.  ::)
Scott
1973 Challenger  440 4 spd 
2007.5 3500 6.7 Cummins Diesel, Anarchy tuned.
Good friends don't let friends do stupid things. ........alone.

Offline GoodysGotaCuda

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Re: questions on charging, Alt, Reg Etc
« Reply #18 on: December 10, 2011 - 10:31:11 AM »
I'm thinking the only way that could happen is if you are working in the engine compartment and accidentally hit the O/P stud with a ratchet. Pretty hard. Appears to be a staged photo to exhibit a highly unlikely scenario. Certainly didn't break from over tightening.  ::)



...not staged


http://www.cuda-challenger.com/cc/index.php?topic=81406.msg815578#msg815578
Build Page: Goody's 'Cuda Build Page
1976 Dodge Warlock
1972 Barracuda - 5.7 Hemi + T56 Magnum

Wheel & Tire Specs:Link

Offline dodj

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Re: questions on charging, Alt, Reg Etc
« Reply #19 on: December 10, 2011 - 11:37:29 AM »

...not staged


http://www.cuda-challenger.com/cc/index.php?topic=81406.msg815578#msg815578

Then I change my opinion, I'm wrong. Fuse link it. Although for short circuit protection, I'm thinking two or three parallel #14 fuse links?
Scott
1973 Challenger  440 4 spd 
2007.5 3500 6.7 Cummins Diesel, Anarchy tuned.
Good friends don't let friends do stupid things. ........alone.

Offline GoodysGotaCuda

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Re: questions on charging, Alt, Reg Etc
« Reply #20 on: December 10, 2011 - 11:45:33 AM »
Then I change my opinion, I'm wrong. Fuse link it. Although for short circuit protection, I'm thinking two or three parallel #14 fuse links?


I use a 100a marine circuit breaker on mine.
Build Page: Goody's 'Cuda Build Page
1976 Dodge Warlock
1972 Barracuda - 5.7 Hemi + T56 Magnum

Wheel & Tire Specs:Link

Offline LAA66

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Re: questions on charging, Alt, Reg Etc
« Reply #21 on: December 10, 2011 - 02:14:26 PM »
 Would a fusable link section directly off the alternator be OK?

Offline GoodysGotaCuda

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Re: questions on charging, Alt, Reg Etc
« Reply #22 on: December 10, 2011 - 02:32:11 PM »
Would a fusable link section directly off the alternator be OK?

It's always suggested that the fuse/circuit protection goes as close to the power source (in that case the battery) as possible.
Build Page: Goody's 'Cuda Build Page
1976 Dodge Warlock
1972 Barracuda - 5.7 Hemi + T56 Magnum

Wheel & Tire Specs:Link

Offline LAA66

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Re: questions on charging, Alt, Reg Etc
« Reply #23 on: December 10, 2011 - 04:40:23 PM »
 Thanks, I have one coming off the relay which is as close as possible. Couldn't hurt to put one directly off the alternator for the charging feed also. :thumbsup:

Offline dodj

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Re: questions on charging, Alt, Reg Etc
« Reply #24 on: December 11, 2011 - 06:56:25 AM »
I use a 100a marine circuit breaker on mine.
Any chance you checked to see if a breaker that large would trip on arcing? I realize it's main purpose is short cct protection, but just wondering.
I was looking at this also. Opinions? I was thinking it would get rid of the multiple wires under one nut problem.
« Last Edit: December 11, 2011 - 09:23:05 AM by dodj »
Scott
1973 Challenger  440 4 spd 
2007.5 3500 6.7 Cummins Diesel, Anarchy tuned.
Good friends don't let friends do stupid things. ........alone.