It's interesting to see that the carb modifications at the factory were apparently done in a rather haphazard fashion: Some member's cars were built with the modifications as early as February and as late as August of 1957, yet my car was completed between these dates (May 20, 1957) but did not have the mods done! It took a lot of research (and help from Club members) to figure out what needed to be done, and then came the even more difficult task of finding the people and places who could actually turn all the advice into hardware and action! So, I hope my shared experience can make the task a little easier for the next round of "custodians" of these Beautiful Brutes! Ray Melton
From: robkern@xxxxxxxxxxxxx To: gnelson@xxxxxxxxxxxx; ronbo97@xxxxxxxxxxx; george@xxxxxxxxxxxx; rfmelton@xxxxxxx CC: finsruskw@xxxxxxxxxxxxxxx; chrysler300@xxxxxxxxxxxxxxx Subject: Re: [Chrysler300] Modifying 1957 WCFB carburetors to address "stalling on turns" Date: Thu, 26 May 2016 21:41:33 -0500
Hello 300’ly to all!
My C was manufactured 8/22/57 and has the modifications
to the carbs. This was verified last year when we rebuilt them and
replaced the carb floats. Vin 3N573216 with engine # 3NE573318. Rob
Kern
Sent: Thursday, May 26, 2016 3:47 PM
Subject: Re: [Chrysler300] Modifying 1957 WCFB carburetors to
address "stalling on turns"
Yes, 58’s have the mods that the 57 service bulletin called for. That is
why 58’s have different carb no,s. Gary
Sent: Thursday, May 26, 2016 12:16 PM
Subject: Re: [Chrysler300] Modifying 1957 WCFB carburetors to
address "stalling on turns"
Is it true that the 300D carbs are 300C carbs with this
modification ? (different Carter carb number, of course).
Ron
----- Original Message -----
Sent: Thursday, May 26, 2016 12:17
PM
Subject: Re: [Chrysler300] Modifying 1957
WCFB carburetors to address "stalling on turns"
Hi all,
I likely have one of few 300 C’s with factory modified carbs. My car was
built 2/25/57 and died in 70’s. I suspect Chrysler made the mods only if
customer complained. Otherwise they would have had to modify around 4,000
carbs if they did a re-call.
If the mods had been made, you will see 4 small holes drilled through the
outside of the air horns into the brass crossover tubes. Internally, there are
4 more machining steps to complete the mods in addition to changing jets and
rods.
Gary
Sent: Wednesday, May 25, 2016 1:08 PM
Subject: Re: [Chrysler300] Modifying 1957 WCFB carburetors to
address "stalling on turns"
Ray and all
I made the modifications to my WCFB carbs on my 300C postage stamp car
about 12 years ago along with the higher altitude rejecting that was
recommended. My mileage on 2 lane highways jumped from 14.5 to 17.3 between
Twin Fall, ID and Lake Havasu, AZ. Also solve stalling problem and rough idle.
I would highly recommend having done.
George
Hello to All -- Nuts! I Forgot that the 300
Club list server would not accept my attachment of the Chrysler Service
Bulletin 1034-CH on modifying the WCFB carburetors! So, if any
individuals are interested and cannot find the bulletin elsewhere
(maybe other members have that bulletin available, also), please contact me
and I will send it to you outside of the server! You will probably
still want to follow up on the jetting and metering rod recommendations to
make the modifications all work together. The 300 Club Forward Look
Archives contain my original messages from late 2012, as well as John
Chesnutt's listing of metering rod part numbers -- I used his p/n's to
provide the Carburetor Shop with the exact dimensions for the new (leaner)
metering rods and jets that I had Jim McGowan install. >
For archives go to > MailFilterGateway has detected a possible fraud attempt
from "www.forwardlook.net" claiming to be http://www!
.forwardlook.net/300-archive/search.htm#querylang Ray
Melton
> From: finsruskw@xxxxxxxxxxxxxxx>
To: rfmelton@xxxxxxx> Subject:
RE: [Chrysler300] Modifying 1957 WCFB carburetors to address "stalling on
turns" > Date: Wed, 25 May 2016 13:12:46 -0500 > > Only
one problem, Ray... > Our antique list server will not allow
ANYTHING!!! > Other than chit chat! > > -----Original
Message----- > From: Chrysler300@xxxxxxxxxxxxxxx
[ mailto:Chrysler300@xxxxxxxxxxxxxxx]
On > Behalf Of Ray Melton rfmelton@xxxxxxx [Chrysler300] >
Sent: Wednesday, May 25, 2016 12:58 PM > To: chrysler300@xxxxxxxxxxxxxxx>
Subject: [Chrysler300] Modifying 1957 WCFB carburetors to address
"stalling > on turns" > > Chrysler did indeed issue a
Service Bulletin in 1957 to address the stalling > problem in the WCFB
carburetors. See the attached Bulletin and redlined > corrections
thereto. I bought the new jets and metering rods f rom The
>
Carburetor Shop, bought the required drills, and provided the parts
and
> Service Bulletin to Jim McGowan, who performed the modifications
on my
> WCFB's, in addition to rebuilding, re-plating and RESTORING
the carbs to
> like-new condition. Beautiful job!
>
>
After installation, the carbs were easily brought into "fine tune"
while
> sitting in the shop; however transmission problems have kept
the car from
> getting on the streets to verify that "the fix"
actually works on turns.
> Hope to have it back in action within a
couple more months!
>
> Ray Melton
> Las Cruces,
NM
> 1957 Chrysler 300C cvt
> From: Chrysler300@xxxxxxxxxxxxxxx
[mailto:Chrysler300@xxxxxxxxxxxxxxx]
On
> Behalf Of Ray Melton
>
> Sent: Monday, November 05,
2012
> 5:25 PM
> > To: 'Larry Jabin'; 'George
>
McKovich'
>
> Cc: chrysler300@yaho! ogroups.com
>
> Subject:
[Chrysler300] Modifying
> 1957 WCFB carburetors
>
Regarding the modifications outlined in the Factory Service Bulletins,
you
> will also note that in addition to drilling some new holes and
enlarging
> some passages, they specify changing to new metering rods
in both
> carburetors and different secondary jets in the front
carburetor, none of
> which are available any more. However, since I
am planning on having those
> modifications made to the WCFB's on my
300C, I have searched for quite a
> while and finally found a source
for the elusive parts. John Hardgrove at
> The Carburetor Shop in
Eldon, MO (573-392-7378) will make the new rods for
> you on the
original machines purchased from Carter when they went out of
>
business in the '70's. These unique, totally manual machines from the
1940's
> can hold precision tolerances down to 0.00005" (five hundred-thousandths of
> an inch - about one hundredth the diameter of a
typical human hair!)
> However, that kind of precision machining does
not come cheaply: the rods
> cost $320/set of four and you must also
purchase their WCFB rebuild kit @
> $154 for two carburetors. The new
secondary jets are a paltry $15/pair. So,
> I'm looking at
>
$489 + $14 shipping just for the parts for the rebuild, PLUS the labor
for
> the restoration itself! This is likely to be a ~$1100 job!
(subsequent
> note: Make that a $1350 job!)
> The best part
about having these new metering rods custom-made is that John
> has
all the original Carter part numbers and specs as well as the
>
Carter-original tiny brass billets, so he can also make the new
metering
> rods in the standard configuration as well as three more
stages of "lean" to
> adjust for high-altitude operation. John
Chesnutt wrote on December 15, 2008
> listing the Carter P/N's for
these different metering rods. I can forward that message to any
interested member if you are unable to locate it
>
yourself.
> Ray Melton
> Las Cruces, NM
> 1957
Chrysler 300C convertible
> White/Gauguin S/N 3N572517
>
> From: Ray Melton [mailto:rfmelton@xxxxxxx]
> Sent:
Monday, November 05, 2012 1:08 PM
> To: 'George McKovich'; Larry
Jabin
> Cc: chrysler300@xxxxxxxxxxxxxxx
>
> Subject: RE: [Chrysler300] Carbs ?s for 1958 Chrysler
300D
> There was an additional Chrysler Service Bulletin No.
1034-CH issued October
> 16, 1957 to correct a misprint in Service
Bulletin No. 1028-CH (August 30,
> 1957). That misprint affected the
dimensions of the modification to the
> carburetors; to wit:
>
Quote: "Please note on Page 2 of Service Bulletin No. 1028-CH in Figure
1,
> under the drawing of the "Air Horn" the Primary side should be
11/ 16 inch
> and the Secondary side should be 13/16." (The drawing
in #1028 had these
> dimensions reversed)
>
> Ray
Melton
> On Nov 5, 2012, at 9:10 AM, Larry Jabin <larry@xxxxxxxxxx
>
<mailto:larry%40pwbsfo.com> >
wrote:
> > When taking off from a stop light at an intersection
where I have to
> > make a left turn, If I take off quickly the
car stumbles so I guess the fuel is moving
> > in the bowl to the
right side of the carb. I thought I read somewhere on the list server
for a fix for this, but
> can't seem to find it
Has anybody
else experienced this & know of a fix?
>
Thanks
Larry
Jabin
> For archives go to
> http://www.forwardlook.net/300-archive/search.htm#querylang
__._,_.___
Posted by: Ray Melton <rfmelton@xxxxxxx>
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