|
|
Post by frankenjeep on Nov 12, 2015 22:51:41 GMT -4
Hey all here's a question:
The CJ wasn't charging when I got it. I got a new Delco type alt and new 2 prong plug ready to install
The old one was wired with the two small wires twisted together and spliced onto an orange wire through the firewall cluster. (I haven't identified that one yet)
LG red one went to the battery like it was supposed to.
I'm finding lots of (different) ways to wire it on the interweb...
Anyone who can tell me the correct way?
* bonus question: Anyone have a good close up diagram of the big firewall plug? It's an 85 CJ7
Thanks!
|
|
Creepy
Administrator 
Dartmouth
Posts: 18,718
|
Post by Creepy on Nov 17, 2015 12:02:18 GMT -4
|
|
chevystroker
Jeeper
NEVER CONFUSE HAVING A CAREER WITH HAVING A LIFE ! ! ! ! ! !
Posts: 896
|
Post by chevystroker on Nov 17, 2015 12:53:36 GMT -4
If your firewall plug is like the ones in Creepy's google search, then it is most probably a GM firewall connector, if that will help any. The basic wiring on the CJ will be the same as or very similar to GM for that era.
|
|
Creepy
Administrator
Dartmouth
Posts: 18,718
|
Post by Creepy on Nov 18, 2015 0:04:06 GMT -4
|
|
Creepy
Administrator
Dartmouth
Posts: 18,718
|
Post by Creepy on Nov 18, 2015 0:10:34 GMT -4
oh well the pic order isn't right. enjoy! the page numbers can be made out. That's an '81 Jeep Technical Service Manual.
|
|
|
|
Post by frankenjeep on Nov 18, 2015 16:56:32 GMT -4
oh well the pic order isn't right. enjoy! the page numbers can be made out. That's an '81 Jeep Technical Service Manual. Wow! Thank you very much! Chilton, Jeep bible and Haynes don't say any of that! Thanks for all the input guys! Watch for smoke over Bedford tonight |
|
bill richards
Jeeper
Millwood Marauder
mud re-freshener
Posts: 4,169
|
Post by bill richards on Nov 19, 2015 11:33:22 GMT -4
...just don't swap a volt meter for the stock ammeter  Bill |
|
|
|
Post by frankenjeep on Nov 19, 2015 16:49:15 GMT -4
...just don't swap a volt meter for the stock ammeter Bill Uh Oh... Stock Ammeter is already gone- It didn't come with one. Cheapo voltmeter is there in its place and it doesn't work. Probably wired wrong But... I'm replacing all of the gauges & rewiring everything One of the auto supply guys talked me out of an ammeter |
|
Dewie
Jeeper
Junk Lord
Yeah thats right - I drive a Lada :P
Posts: 1,249
|
Post by Dewie on Nov 20, 2015 8:22:53 GMT -4
One of the auto supply guys talked me out of an ammeter I question if said supply guy knows how an ammeter works vs a voltage gauge... You can see you have an alternator failure with an ammeter way before you can with a voltage gauge |
|
chevystroker
Jeeper
NEVER CONFUSE HAVING A CAREER WITH HAVING A LIFE ! ! ! ! ! !
Posts: 896
|
Post by chevystroker on Nov 20, 2015 8:57:06 GMT -4
One of the auto supply guys talked me out of an ammeter I question if said supply guy knows how an ammeter works vs a voltage gauge... You can see you have an alternator failure with an ammeter way before you can with a voltage gauge The only downside to an ammeter is that the charging wire from the alternator to the battery has to be routed through the firewall to the dash and back out. Have to be careful not to short the wire or terminals to ground as it is connected directly to the battery. And it has to be a large gauge wire due to the length to prevent a voltage drop. Voltmeters can be connected to any power source under the dash to see the voltage. Ideally, I think you would want an ammeter AND a voltmeter. Some good discussion here on this forum, and they mention about using a remote sensing amp meter but it would probably be expensive if you can find one. link
I bet it would be interesting to see what an ammeter shows while winching.  |
|
|
|
Post by frankenjeep on Nov 20, 2015 9:50:22 GMT -4
I'm thinking I may put in another ammeter as well as the voltmeter.
For all of those good reasons.
I doubt the kid at supply place (I'm not knocking him or his company) ever had a vehicle with an ammeter. And he "knows" what he's told
But you're right. You can see right away if you are discharging
|
|
bill richards
Jeeper
Millwood Marauder
mud re-freshener
Posts: 4,169
|
Post by bill richards on Nov 20, 2015 10:55:49 GMT -4
yeah... plenty of people try to swap a volt meter for an ammeter... and start a fire. They don't wire up the same. Likely the volt meter doesn't work because it got cooked.
Bill
|
|
|
|
Post by frankenjeep on Nov 20, 2015 13:44:51 GMT -4
yeah... plenty of people try to swap a volt meter for an ammeter... and start a fire. They don't wire up the same. Likely the volt meter doesn't work because it got cooked. Bill Yeah that's my guess too. |
|
