28Q29U Plymouth Forum

General Category => General Discussion => Topic started by: SteveG on April 11, 2014, 01:28:35 AM

Title: Spark Plugs
Post by: SteveG on April 11, 2014, 01:28:35 AM
At least two of the AC C77L plugs in my'28 are shot and not made anymore.

I have a set of AutoLite 3036. They fit, but the reach is about 1/8" shorter.

Is anyone using these plugs?

What plugs are you using?

Thanx

SteveG
Title: Re: Spark Plugs
Post by: frankp on April 11, 2014, 10:27:42 AM
Champion D16 now called 516.
Title: Re: Spark Plugs
Post by: racertb on April 11, 2014, 11:03:08 AM
Try a D16 Champion or a C87 AC Delco
Title: Re: Spark Plugs
Post by: imoore on April 11, 2014, 05:08:07 PM
Guys a 28 engines use 7/8 sparkplugs. Unlike the 29 which use 18mm plugs.
Steve i use the autolite 3076 plugs and have had no issue. I also have a set vesters as a back up set under the back seat.

Ian
Title: Re: Spark Plugs
Post by: SteveG on April 17, 2014, 09:47:58 PM
Thank you.

Tried to find the heat ranges of the 3036 and 3076. and only determined the 3076 has 3 A-25 heat range reach of 5/8".

I installed the 3036 plugs and will read them after around 100 miles. then compare their respective performance.

Will let you know the results.

SteveG