Re: [Chrysler300] 300H spark plugs
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Re: [Chrysler300] 300H spark plugs

Hey Doug,
I can be such a klutz. I am back to seeing if I can get my 300H running better. I had decided  I didn’t have the carbs (restored by Ace Fuel Systems and are gorgeous) properly adjusted. Philbin rebuilt the distributor a couple of years ago-new points rotor, cap, condenser etc, new wire plug wires, newly rebuild damper and I had out new plugs in it last year. So, I decided to have a go at  carb setting. For some reason, I had thought the engine was running like it had that carb vacuum line disconnected , which I have done before. So I pulled that loose. Hose was hard and apparently leaking because a new hose made a huge difference . But it kept sounding like it was missing and drove like crap. So I wondered if I had the correct plugs in it and that’s when I asked about correct plugs. Meanwhile, I began removing the plugs in the engine and they were RJ12YC . 

But here’s what was wrong #1 plug had a .005 gap (nearly closed), #3 was correct at .035,  #5 was about .100 and the #7 was disconnected! The plug boot was hanging down. I must have been sleepwalking the day I did that!  That car was running on 5 cylnders. No wonder it was hard to start. I think it;s going to be a lot better now. I need to get some gasoline for it tomorrow,
Thanks Doug!
Mike Moore

I installed J12Yc plugs last fall
On Oct 21, 2015, at 7:04 PM, 2HsandaHeritage@xxxxxxxxxxx wrote:

Hi Mike,
My H runs great and the plugs are Champion J12YC.
Probably not totally correct, but the best I could find.
On a side note, the vacuum line from my rear carb to the distributor is fairly new and very flexible.
Doug Warrener

From: "Michael Moore mmoore8425@xxxxxxx [Chrysler300]" <Chrysler300-noreply@xxxxxxxxxxxxxxx>
To: "Mike Moore" <mmoore8425@xxxxxxx>
Cc: "Intl 300" <Chrysler300@xxxxxxxxxxxxxxx>
Sent: Wednesday, October 21, 2015 6:39:05 AM
Subject: [Chrysler300] 300H spark plugs


What spark plugs is a 300H happiest with today, give some plugs no longer available and the  crumminess of gasoline?

Thanks, Mike Moore


Posted by: Michael Moore <mmoore8425@xxxxxxx>

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