Go to the following site (Champion) with the link supplied and at he bottom of the page look at "Manufacturers numbering system" for an explaination. http://www.championsparkplugs.com/sparkplug411.asp
Yes I just had to change number 3
It all depends on the manufacturer of the plug as the marking are unique to them. Here is a link to the table for NGK plugs: http://www.ngksparkplugs.com/tech_support/spark_plugs/faqs/faqcode.asp?mode=nml
Resistor
Sorry but I do not under stand your question.
Albert Champion! He was my great great uncle!
no everyone knows that it has no numbers but 212
fordparts.com shows .035 inch for two spark plug numbers and .030 inch for another spark plug number ( I believe the .030 inch is for heavy duty use )
AC in AC Delco Spark Plugs stands ALBERT CHAMPION. Alberta Champion lost control of the Champion Spark Co in 1908 and then started AC Spark Plug Co. Ac was bought out by General Motors in 1909. Reference Wikipedia --Flint East
fordparts.com shows .035 inch for two spark plug numbers and .030 inch for another spark plug number ( I believe the .030 inch is for heavy duty use )
back ones are 1,3,5. front 2,4,6.
AWSF - 42 C ( copper suppressor spark plug ) .044 inch gap or if you want a platinum plug AWSF - 42 P ( platinum suppressor spark plug ) MOTORCRAFT PART NUMBERS
If you mean that the wire came out of the boot, then pull the boot off of the spark plug and use a spark plug socket to remove the spark plug.