Spark plugs
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Spark plugs



Spark plug replacement is interesting to me particularly on cars that I drive a 
lot. That is because as you say, the condition of the plugs when you take them 
out is VERY revealing. If the cars just sit around a lot and only get started 
occasionally without being driven this will tell you next to nothing. 

Most generic shop manuals give a page or two of color pictures that show what 
various plug conditions indicate. 

Paul

In a message dated 3/16/2004 9:06:21 AM Eastern Standard Time, 
kmoore12@xxxxxxxxxxx writes:

> Fellow Imperial aficionados,
>     I have been "listening" to all the discussions and comments on spark 
>plugs and thought I should throw in a couple of my pennies. Recently, I have 
>been fooling around with my timing trying to get rid of some pinging. The only 
>way I could get rid of it was by retarding the timing :(  Then, I came across 
>one of my Grandfather's old Petersen shop manuals (1975) and it says,
>       "Plugs with PLATINUM or other fine wire electrodes and surface gap 
>plugs having no side electrode should not be used unless specified by the 
>manufacturer."
>       Guess what kind of plugs I took out of my car? I now have the O.E. 
>champions J-13Y and my timing is no longer retarded. The '66-71 used the same 
>plugs (J-13Y) and '59-'65 used J-14Y; '72 used J-11Y all of 'em are gapped 
>.035". So I have to agree with Paul, unless the plugs are old or something is 
>wrong with the engine, plugs don't fail. In fact, according to the same book, 
>plugs are an excellent indicator of what is 
> going on inside the combustion chamber.
>    Anyway, whatever works for ya'-- Do it!
>         
>     Keith
> 1970 LeBaron



Home Back to the Home of the Forward Look Network


Copyright © The Forward Look Network. All rights reserved.

Opinions expressed in posts reflect the views of their respective authors.
This site contains affiliate links for which we may be compensated.