spark plugs

[RandalPark@xxxxxxx]

I am with you. I never had a problem with any particular brand of plug. I did 
have plug trouble if the engine was not driven enough or worn out, the choke 
was sticky or stuck closed, or I left them in too long. None of those things 
were the fault of the plug.

Paul

In a message dated 3/8/2004 10:33:06 PM Eastern Standard Time, 
cbody67tx@xxxxxxxxxxxxx writes:

> Just out of curiousity, do the Autolites center electrodes extend as far into 
>the chamber as the Champions do?  If not, that could effectively retard the 
>spark a few crank degrees in itself, even if what it's showing on the damper 
>is correct.
>  
> I haven't checked the Autolites, but if they have a wider heat range than the 
>Champions, they could effectively be a little "cooler" range plug.  But most 
>of the older 10.0 compression ratio B/RB engines could have gone as  "cold" as 
>a J9Y for the higher performance camshaft motors in the earlier 1960s.  
>Compared to the J14Y in the 9.2 compression ratio 2bbl motors, that's a pretty 
>cold plug, but might be necessary for extended WOT running (i.e., police 
>pursuits).
>  
> Several other construction variable might include copper cores and similar 
>heat dissipation items, but the length the center electrode extends into the 
>chamber could be significant by itself.  In the earlier times of using 
>Champion plugs, I never had any problems with them, but your experiences might 
> be different.
>  
> Enjoy!
> W Bell