Re: [Chrysler300] Flat spots in G acceleration

[Bill Huff <czbill@xxxxxxxxxx>]

Howdy,

Not sure what you mean by flat spots.  When I was 
racing my 67 GTX, at one time it would take off, 
then go flat for a second, then take off again, 
then go flat etc.  The flat spots felt like the 
brakes had been applied.  I finally traced it to 
a bad fuel pump push rod.  After replacing the 
mechanical fuel pump, then finally installing a 
Holley electric, I found that it went good with 
the electric on and not so good with only the 
mechanical pump on.  A new rod (the old one was 
mushroomed over a little and hard to get 
out)  fixed the problem.  I always raced with 
both the electric and mechanical pumps after that but that was just insurance.


Bill Huff


u At 12/14/201002:11 AM, Brandt Jimerson wrote:
>
>
>Hello to everyone in 300sville!
>
>Say, I'm still having trouble trying to figure out why Melissa still has flat
>spots during FULL acceleration! Can it be a 'fluctuating' accelerator pump in
>one of my carbs? I hope not because everything 
>else really is already ruled out.
>My fuel pump is new. My fuel filter is new. Electricalwise, my coil is good
>(new), my points are correctly set at about .018 
>- .019, I believe my timing is
>correct but I better recheck it? The dwell is 
>correct right at 36. Can I have a
>fouled plug? As for my timing, it is advanced at 
>about 14 degrees and I DO have
>the correct 98 - 100 'concacioun' for it! Can it be a faulty vacuum
>advance? Michael Jenkins, a Mopar expert that 
>used to work with Jeff Carter once
>suggested that California this time of the year 
>has poor gas quality. I seem to
>remember when she had flat spots 4 to 5 years ago, then I seem to recall when
>winter was over, I didn't notice the problem 
>anymore at all. Maybe I have debris
>in my tank but everytime I check the filter, it 
>appears clean. I will say this;
>several months ago I was pouring gas into my G 
>from a 5 gal. jug (of racing fuel
>to mix with the 91) and the hose accidently fell 
>off and down into the tank she
>went! Could that maybe be my problem? I think 
>however I remember problem before
>that though. Anyone have suggestions and thank you kindly in advance!! ;-D
>
>Sincerely & 300ly, Brandt H J with a G.
>
>[Non-text portions of this message have been removed]
>
>


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