Re: [Chrysler300] Pinging & Timing

["Magik Draggin'" <longrammopar@xxxx>]

The problem may not be timing related at all, but rather the result of 
carbon deposits on the cylinder ledges that remain hot after compression and 
ignition from the previous stroke and then ignite the incoming fuel for the 
next stroke prematurely.

Short of pulling the heads and removing the deposits, you might simply 
consider retarding the timing to 5 deg BTDC (which is where the ram engines 
are set). Simply could be that 10 degrees of advance on a 40 yr old 413 is 
too much to compensate for even with hi-octane fuel.

Karl



> From: "Jennifer Allyn" <gearhead.girl@xxxx>
> To: "Chrysler 300 Club Int'l Listserver" <chrysler300@xxxxxxxxxxxxxxx>
> Subject: [Chrysler300] Pinging & Timing
> Date: Sun, 16 Sep 2001 23:24:39 -0700
>
> My 1962 413 (single 4-barrell) is making some good pinging these days. 
> I've
> checked the timing, which I have set at the 10-degree mark on the balancer
> (as opposed to the 0-degree mark). Under the distributor cap I have one of
> those electronic ignition boxes opposed to points. I run the 
> highest-octane
> gas I can find. Not running any hotter than it usually does.
>
> Any ideas how to make the detonating cease?
>
> Thanks


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