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hot battery
https://www.slantsix.org/forum/viewtopic.php?t=36106		 Page 1 of 2
Author:  bud18007 [ Fri Jul 03, 2009 7:24 pm ]
Post subject:  hot battery
I just had my slant rebuilt and been putting it together, and have ran into a few problems but got them all fix. But I have a new one, when I turn the engine over and it starts up the battery get really hot. At one point it started to smoke. It only does it when it runs, also the the enigine ground wire gets really hot. Any Ideas. Its a 1982 Dodge D-150
Author:  Aggressive Ted [ Fri Jul 03, 2009 8:15 pm ]
Post subject: 
There is a short some where or your alternator is over charging.
What does the amp gauge show?
Author:  Joshie225 [ Fri Jul 03, 2009 9:00 pm ]
Post subject: 
It's very possible your starter is bad and is drawing excessive current. Best way to diagnose this is take the truck to a starter/alternator/battery shop and have them check the starter current draw. I'm convinced enough that this is the trouble that I would swap the starter if one were handy.
Author:  bud18007 [ Fri Jul 03, 2009 9:22 pm ]
Post subject: 
The starter is so hot that you can't touch it without burning your finger.
Author:  Aggressive Ted [ Fri Jul 03, 2009 10:36 pm ]
Post subject: 
Sounds like its time for new brushes and maybe a new armature. Take it to your local electrical "Rebuilder" repair shop. They just do alternators and starters.
Author:  Joshie225 [ Fri Jul 03, 2009 11:01 pm ]
Post subject: 
Quote:
The starter is so hot that you can't touch it without burning your finger.
Yikes! If you don't mind the starter sounding Japanese the mini starter as used on just about everything rear drive from 1989 onward is the way to go. I've bought several from wrecking yards over the years and had great luck with them.
Author:  bud18007 [ Fri Jul 03, 2009 11:58 pm ]
Post subject: 
Thanks for the info, I think my strarter is still under its t one year warrenty.
Author:  66aCUDA [ Sat Jul 04, 2009 5:56 am ]
Post subject: 
Bud
A word to the wise. Replace your Battery cables. Esp your ground cable. Clean the area where it bolt onto as well. When it smoked it oxidized. I have had this happen a number of times and change the cable out and voila good as new.
Frank
Author:  wjajr [ Sat Jul 04, 2009 5:57 am ]
Post subject: 
bud18007,

While you are at it, remake the ground connection from battery to block and make sure it is fastened directly with a bolt that threads into the block, not to a bracket. Clean to bare metal, or place a stared lock washer between the cable and block to make a good electrical connection. This can be a point of high resistance if the connection is not made properly. Remember; Resistance = Heat in Electronville.
Author:  SlantSixDan [ Sat Jul 04, 2009 6:26 am ]
Post subject: 
Quote:
Thanks for the info, I think my strarter is still under its t one year warrenty.
Ah. Now you see firsthand why I keep saying that "remanufactured" parts like this are trash, not worth messing with.

You can get a brand-new Chrysler starter from Old Car Parts Northwest or you can get a Japanese-made mini starter that'll bolt right on from an '89-'01 Dodge truck or van with 3.9, 5.2, or 5.9 engine.
Author:  bud18007 [ Sat Jul 04, 2009 10:33 am ]
Post subject: 
Still doing it. I have replaced the alternator, the starter, and the ground cable, nothing seems to be working. The only thing left to do is the battery its self.
Author:  Rob64GT [ Sat Jul 04, 2009 12:05 pm ]
Post subject: 
I would check your voltage regulator. I would start by making sure there is a good ground between the case of the voltage regulator and the sheet metal of the body. I would also check the voltage at the battery and the alternator, with the car running and off. My guess is that your battery is getting overcharged, with your car at idle (might have to rev up engine to really see what is happening) you should be between 13.6 and 14.3 volts with your car turned off you should be between about 12.5 and 12.8 volts.
Keep in mind these numbers are not absolutes but is should help you figure out what is going on.
Author:  bud18007 [ Sat Jul 04, 2009 12:37 pm ]
Post subject: 
where would my voltage regulator be located.
Author:  THOR [ Sat Jul 04, 2009 1:14 pm ]
Post subject: 
Depends on the car, and where Chrysler wanted to put it. If it's an early A 66-down, they are usually located on the drivers side of the firewall, in the same area as the master cylinder. Later cars with the solid-state regulators can be anywhere on the firewall. Most of them that I have seen are mounted on the passenger side of the engine compartment, on the firewall, and they are typically a silver colored box with a green, and blue wire coming out of the front.

You do not need to know where the regulator is mounted unless you find voltages outside of the ones specified. 13.8-14.5 is a general use range when the car is running, and battery voltage with the car off should be right around 12.6.

Check these with a DVOM (Multimeter) not a test light. 8)

~THOR~
Author:  86slantram [ Sat Jul 04, 2009 8:53 pm ]
Post subject: 
My 86 was doing the same thing about 2 months ago. Replace the Voltage Reg and now everything is fine. Stand in the middle of the grill and look straight back, should be mounted on the firewall directly above you valve cover.

Good luck
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