Re: {Chrysler 300} Knocking

["mgoodknight@xxxxxxxx" <mgoodknight@xxxxxxxx>]

outside air temperature, altitude (elevation), engine operating temperature, fuel octane, air/fuel ratio, engine condition, carbon build up, spark plug heat range-----all are variables that affect knock  (detonation)   The factory listed spec for spark timing is only a guideline which works well for much of your driving conditions, but is only rarely an optimum setting  Just verify that you don't havea malfunction causing an upset in one of the things I've listed and then retard your spark in small increments until the knock is barely detectable.  It's ok to have a very slight knock under hard acceleration  (slightly noticeable knock is the operative phrase).

--------------Marshall Goodknight

---------- Original Message ----------
From: RICHARD HUSS <rhuss214192@xxxxxxxxxxx>
To: Ryan Hill <ryan_hillc300@xxxxxxxxxxx>
Cc: 'Keith Langendorfer' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Subject: Re: {Chrysler 300} Knocking
Date: Sun, 2 Jan 2022 17:30:38 -0500

I did not set the timing. Probably need to see if it is correct. 

> On Jan 2, 2022, at 5:24 PM, Ryan Hill <ryan_hillc300@xxxxxxxxxxx> wrote:
> 
> Retard the timing to start, see if the knock goes away. 
> 
> Ryan Hill
> 
>> On Jan 2, 2022, at 2:07 PM, RICHARD HUSS <rhuss214192@xxxxxxxxxxx> wrote:
>> 
>> I am putting the 300G through some road testing and under hard acceleration I am  getting knocking. I would think it might be Air fuel mixture or low octane gas. I am running 90 octane. Any thoughts. Valves? Timing? Do I need to add lead?  
>> 
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