Register or Log In To remove these advertisements. |
|
|
|
Thread Tools | Display Modes |
08-29-2023, 07:25 PM | #1 |
Registered User
Join Date: Mar 2021
Location: Hershey Pennsylvania
Posts: 339
|
Alternator getting hot
Was farting around rebuilding the carb on my 66 c10 today and I have 2 questions. One, did these 250s come with an alternator or generator? If originally a generator then the PO switched it to an alternator. My second question would be after a cold start and running for barely 5 minutes, should it get hot enough it's just past the point where it's too hot to touch? One other thing I might add is the battery was half dead for this so maybe it was just working hard? Idk
|
08-29-2023, 08:27 PM | #2 |
Registered User
Join Date: Sep 2006
Location: San Francisco
Posts: 4,782
|
Re: Alternator getting hot
yeah I had that problem when I had an electric fan and amps for the stereo on my truck. Actually burned up an alternator and had to replace in on the road. I upgraded to a one wire 100 amp Alt and all was fine after.
__________________
"A man and his truck, what a beautiful thing" 65 Short Fleetside BBC 65 Long Fleetside 283 3 on the tree for now. my build thread http://www.67-72chevytrucks.com/vboa...d.php?t=259536 |
08-29-2023, 11:24 PM | #3 |
Senior Member
Join Date: Jan 2018
Location: Hickory Flat, GA
Posts: 4,488
|
Re: Alternator getting hot
GM switched to using alternators on the sixes and v8s in 63. They kept the generator words on the instrument cluster for some reason though.
Re-charging the battery could cause some excess heat. What definitely will cause it to get hot is if you have too much resistance somewhere in the wiring. I had some heavy resistance when turning on the a/c that was wired through the fuse block. Switched the wiring to run relays to power the a/c and my excess resistance went away. No more charging issues for me.
__________________
Christian Carpenter 1963 C10 - Frankentruck 283, Muncie 3 speed with overdrive Overdrive wiring here1963-ish truck bed trailer - Half-Wit 1981 C10 - Penny 305, th350 --> Soon to be 350, Saginaw 4 speed 1995 Dodge Dakota Sport "I'll put it simple: if you're going hard enough left, you'll find yourself turning right." - Doc Hudson |
08-30-2023, 12:54 AM | #4 |
Senior Member
Join Date: Apr 2009
Location: SAN FERNANDO VALLE SOL CAL
Posts: 1,064
|
Re: Alternator getting hot
You wed To see What Amps Your Fans Drawing and Then see alternator OutPut You Can a find 100 Amp Alternators champion champion raider with fan radiator radiator Fans Pull 10-20 Amps
__________________
1966 GMC K25 V6 351E Original Utility Truck 2000 C3500 Hot Rod Utility Truck 2003 ROAD KING 100th 124ci 6 Speed 145CI M/P Pro Street FXR 2002 FXDP 2007 2500HD DURAMAX. DD Studio Teamsters / Mechanic Retired GM Master Tech 20 Years Retired Ford Tech 15 Years |
08-30-2023, 08:04 AM | #5 | |
Registered User
Join Date: Mar 2021
Location: Hershey Pennsylvania
Posts: 339
|
Re: Alternator getting hot
Quote:
|
|
08-30-2023, 08:47 AM | #6 |
Registered User
Join Date: Jan 2023
Location: Johannesburg South africa.
Posts: 78
|
Re: Alternator getting hot
Most probably because of state of battery. Alternators do run hot as it charges, And at idle, alt is turning faster compared to crank but the fan for cooling is only doing so much, wil have more air movement internally when it speeds up.
When battery is fully charged it can be monitored and verified if still running too hot. |
Bookmarks |
|
|