Re: {Chrysler 300} 300F Astrodome question / Ignition Circuit

On Sat, Nov 13, 2021, 6:29 PM Nick Taylor <nicksgaragesd@xxxxxxxxx> wrote:

Both of my 1960 Chryslers have factory external regulators. Part way through the model year they switched to an external one. The oil pressure gauge doesn't have it in it. In 1961 they went back to the internal regulator. JC Auto restored the cluster in my 300F for a previous owner and he charged them for the conversion even though it was already there. And no, he didn't not install one of his solid state regulators. It's just like my other car. Attached is a picture of a spare 1960 cluster with the factory external regulator and wiring. The car's wiring harness is no different, the jumpers seen here just plug into the harness. I've also attached the first page of the bulletin showing the VIN break at 03148732. The VINs of my cars are 8403150442 and 8703150046.

Nick

On Sat, Nov 13, 2021 at 9:46 AM John Grady <jkg@xxxxxxxxxxxxxxxxx> wrote:
using an external gauge regulator involves several changes to harness under gauges if car originally had an internal regulator in one of the gauges . Basically the 12 v feed is moved to this , and the output wire then feeds power to all gauges , important that metal of gauge mount and new regulator itself are solidly grounded .
Jeff has to tell you exactly how . If you miswire of in and out you will blow it up . And possibility to blow all gauges too by burning their heater coils out with 12v .
Critical to get exact rewiring diagram info from him , do not “ try it” can cause a lot of damage . Has to be perfectly to his plan .
Q2 No — except for the two heavy ammeter stud connections in astrodome ( which if open , = no power to most of car ) . maybe you have that ? bolt together if trying to operate car off battery with dome out? be sure they or bolt do not touch ground ! ( burned harness)

Sent from my iPhone not by choice

On 13 Nov 2021, at 11:51 am, dplotkin <dplotkin@xxxxxxxxxxxxxxxxxxx> wrote:

I am not familiar with Jeff's restoration though I know he does a great job. I do know that he installs an electronic voltage regulator for the instruments to replace the mechanical one that I believe is part of the oil pressure gauge on an F. The resistor thing as you call it is likely the new voltage regulator Jeff install. Give him a call and ask him

Sent from my Verizon, Samsung Galaxy smartphone

-------- Original message --------
From: 'Michael James' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Date: 11/13/21 11:37 AM (GMT-05:00)
To: Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Subject: {Chrysler 300} 300F Astrodome question / Ignition Circuit

Good morning from Wisconsin,

I’m preparing to install a Jeff Carter restored astrodome (pictured on the left) in my F. I noted a resistor type connection on the back that is not present on an unrestored example. I’m not sure if my existing wiring harness has provisions for this resistor thing, as I’m not sure if I had Jeff restore the one that came out of the car.

So, which color wires connect to this thing?

Sidebar, is the ignition “hot” red wire circuit powered through through the astrodome? I ask because yesterday I tried to fire her up without the astrodome installed and I have no power at the ignition switch harness

Thanks in advance for any guidance, Mike

<IMG_5578.JPG>

Sent from Yahoo Mail for iPhone

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