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My fleetby-pass took the charge wires from alternator through the firewall to the ammeter and from the ammeter back through the firewall to the starter relay. The bulkhead was by-passed. My ammeter remains in the circuit and fully functional. Crackedback’s kit was headlights only.
To be clear Crackedback’s charge circuit by-pass kit would not be considered as the factory “fleetby-pass” as discussed here. As I understand it, his kit by-passes the ammeter, defeating it’s purpose altogether. The later factory fleetby-pass is a bulkhead connection by-pass, the ammeter...
As mentioned, it refers the factory bulkhead by-pass, commonly referred to as the factory “Fleet” by-pass as it is mostly found in fleet production (Police/Taxi) with a high output factory alternator. The matching engine compartment diagram is on page 8-128 in the ’73 Dodge manual. The original...
...loads at all if all loads, including added aftermarket loads, are correctly placed on the alternator side of the ammeter.
The factory “fleetby-pass” is a charge circuit bulkhead connector by-pass, ammeter is fully functional. The bulkhead Packard connectors are the weakest link in the...
I’m going to modify my harness to delete the questionable bulkhead connections. Everything looks pretty straightforward,
Remove A1B-16DBL, increase wire size from alternator to 8 gage etc, but my only question is, does pin 18 share R6-12BK, which will now be called R6-8BK, with the new R6C-12BK...
...to do with this subject. When charging system is not operating, the battery is only voltage potential device.
Do you know what the “fleetby-pass” is? Chrysler eventually by-passed the bulkhead charge circuit terminations with direct runs to a modified shunted 80amp ammeter on police/taxi...
FWIW I did the fleetby-pass with 10 gauge wire, used Crackedback’s kit and LEDs everywhere but the headlights, which are OEM seal beams, with no problems with a stock 60 amp alternator. I put an amp clamp meter on and get 15 amps at idle, in gear @775 rpm, no lights. With lights on I get 17...
...using only larger wires to by-pass the bulkhead connections for vehicles having a 60,65, or 100 amp alternator from the factory. The fleetby-pass would still use an ammeter as indicated in the diagrams but an internally shunted ammeter scaled/ranged to +/- 80 amps. No charging system idiot...
Yes, I touched on the factory “fleetby-pass” a bit in the video. As another example of the factory awareness of the bulkhead Packard connector weakness in the charge circuit from the time is a C-body recall (Recall 48549) that took place in the mid-seventies. Early seventies C-bodies ran this...
Fred once again performed the menial task of fetching parts for one of our "modern" Dodges today.
It occurred to me that this hasn't been the first time for such duty for him either.
Often is the time he's been called upon to fetch needed parts for either the '04 Ram (things like
a radiator, a...
The fleet/bulkhead by-pass as been diagramed/discussed here many times over the years, a few examples here.
I’ve been by-passing the charging bulkhead connections since my time at the dealers way back when.
No reason you can’t run added loads (including EFI) and retain the original ammeter as...
I just wanted to reply and say, that in my case, someone who clearly admits that I know nothing about electronics other than shadetree mechanic, it was finally nice to find an actual diagram from Plymouth that documents how to do the bypass. There have been many debates back and forth with...
Exact method, what am I missing? The OP (cbarge), and most of the responding posts, are mostly describing/discussing the engine compartment charge circuit by-pass, in this case adding a 12ga wire run from the alternator output stud to the starter relay. While this may alleviate some battery...
Yea, every forum has much of the same, similar, threads as here on this topic, “We all know the ammeter is the Achilles heels of old Mopars…”, 9-pages pages of opinions, misinformation, and incorrect assumptions. Verry little fact-based information presented. Did see a few posts on the factory...
Wow! Never knew that! Wouldnt do a lot of good to replace what will probably happen again! I really appreciate the info!
Seems Ive drawn a lot of attention to maybe selling it. I hate to think of it. As how many of US have the old "Man I wish I still HAD" thing?!
I may try that!
Thanks a BUNCH...
All this shunt talk on a thread about a shunt-less ammeter. Just dug out the pictured NOS Police ammeter scaled to ~80amps for a closer inspection. The 3592133 application is listed in the ’72 book as standard dash with certified speedometer (Police). To be clear once more, Police/fleet...
Is there a basic schematic you know of showing what routes I might use to make this jump? I grabbed some 10ga wire.. And a pack of Packard male treminals. I think I get it now!
Thanks!!
One more attempt to explain, this is a design flaw in the stock original charging system and is by far the weakest link in the entire system. A result of trying to make the assembly of these connections faster on the assembly line. Again, they have been failing in short order since these cars...
Yes, Ehrenburg's article talks about how fleet vehicles had a factory Chrysler bulkhead bypass, eliminating the trouble spots, which he shows some photos of but then he goes into this:
4. To straighten out the wiring problem permanently,
you need some decent supplies. A few feet of...