Battery terminal over heating. What could cause this?

[Dsm42oA]

I recently put a new motor in. And I put a used starter on also. Used same alternator and I have no idea how old my battery is but there's no corrosion on the terminals. Everything is hooked up properly. It's only my positive terminal that is becoming hot. And everything was working fine, and it started right up. But now I just noticed the over heating and I shut it off and now it won't start at all. But there's still power from the battery. Has anyone had this same problem or know or have an idea what would cause it?

 

[LeeSD1]

Did you blow any fuses? There might be a positive wire from the battery grounding out somewhere...

 

[dot45]

Check your grounds, 9 times out of 10 a bad ground wire is the issue.

 

[And_44]

Sounds like a bad ground. When you put the new motor in maybe didn't hook up all the grounds. Between the engine/tranny and firewall.

Well just thought of this after posting first part. But maybe your negative battery post is partially detached as well internally. Not allowing a full ground.

 

[DSM1G90]

Or.. the copper strands within the outside vinyl sheath of the cable have corroded (leakage of battery acid crawing into the copper strands causing the corrosion) causing a building up of massive resistance and heat is the results of resistance.

Seen that one before as well.

If you got solid ground connections from cable to chassis, I'd suspect the connector needs to be cut off and the weak part of the cable as well (like a cancer operation-remove the damage to heal) and a new connector replace and secured on very tight to the cable.

-DSM

 

[96' Eclipse GS]

(Starter) or (Ground).

 

[niddydsm]

Its either gonna be starter (had it happen to me) or u didnt place a ground. Check ## grounds first since its the easy if the two.

 

[Dsm42oA]

It only heats up when the headlights are turned on. And it's the wired that run from the fuse box to the battery heat up first. Could be a fuse or relay from the headlamp?

 

[Dsm42oA]

replaced positive battery wire today and stopped the heating.