Re: [Chrysler300] 300C Voltage Regulator, Spark Plug, Trans Shift Cable Questions

["Ray Melton rfmelton@xxxxxxx [Chrysler300]" <Chrysler300-noreply@xxxxxxxxxxxxxxx>]

Hello Jim - Did you ever get a good source for the fuel hose between the carbs?  If not, I think I have an appropriate spare left over from restoring my late father's 300C.  What is really important is the end fittings; the low-pressure rubber fuel hose can be fabricated by any good shop that makes hydraulic or air conditioner lines.  (That's what I did, using a section of stainless-braided fuel hose from Pep Boys ($8)  because the original line in 1957 was covered in a copper braid, which is not available anywhere anymore.  Local shop charged me $10 to swage the ends onto the brass fittings.  Just be sure you like the appearance of what they're going to use for those swaged ends!) 

Regarding the spark plugs, I used new technology NGK BPR5EIX-11 Iridium plugs  (yes, all those letters and numbers mean a specific thing!  For example, the suffix -11 means that the electrode gap is 1.1 mm - 0.044" - which yields a bigger spark than the typical 0.030" used on old nickel-tip electrodes.))  - they're even better than platinum and are used in many modern cars that are expected to go 100,000 miles on a set of plugs.  Yes, I know that a large part of that longevity is the more precise fuel injection on modern cars which virtually eliminates rich fouling, but the 0.4 mm dia (0.016 inch) fine-wire Iridium center electrode is very resistant to fouling by either rich mixture or oil, so they're perfectly suited for our old Brutes.

BTW, with a modern Pertronix conversion for the miserable old dual points, a Pertronix 45KV coil disguised as original, the NGK Iridium plugs and a homemade set of original-looking 7mm plug wires with spiral-wound stainless steel conductor for minimal resistance but excellent RFI suppression for good radio reception, the motor now starts within less than a second!

Ray Melton  Las Cruces, NM  1957 Chrysler 300C cvt  White/Gauguin  s/n 3N572517

On 10/18/2017 2:35 PM, paul paulholm@xxxxxxxxxxxxx [Chrysler300] wrote:

 

On 10/18/2017 4:14 PM, JIM KRAUSMANN Kraus300@xxxxxxxxxxx [Chrysler300]
wrote:

> Thanks for responses on the carb to carb fuel hose question.

> Separately, it has been more than 10 years and many miles since the
> spark plugs were changed. I think it has Champion RN12YC now. It runs
> fine. It probably won't after I change the plugs. Any brand or part #
> preference?

> Thanks!

> Jim Krausmann

last time I researched the sparkies for the 392 the autolight agr32 and
agr42 were still listed in some parts house cattylogs, I believe these
were factory original plugs.

--
Paul Holmgren
The history of liberty is a history of resistance.
The history of liberty is a history of limitations
of governmental power, not the increase of it.
- Woodrow Wilson, New York, September 9, 1912

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Posted by: Ray Melton <rfmelton@xxxxxxx>

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