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-   -   Spark plug gap for 73.5? (http://forums.pelicanparts.com/porsche-911-technical-forum/779850-spark-plug-gap-73-5-a.html)

rpc356 11-04-2013 10:31 AM

Spark plug gap for 73.5?
 
What is the correct spark plug gap for a 73.5 engine that is bone stock? The plugs below (NGK BP6ES) have about 1k miles on them and were gapped at .028". Rechecking the WSM, it appears that the recommended gap "back in the day" was between .55-.70mm (.022-.028"). What is considered best practice now? Am I still ok with .028"?


http://forums.pelicanparts.com/uploa...1383593128.jpg

http://forums.pelicanparts.com/uploa...1383593429.jpg

manbridge 74 11-04-2013 01:23 PM

I think .024 is correct though I'm not near my books at the moment. I don't think .028 will give you any issues though.

Your plugs look to be burning correctly for CIS by the way.

rpc356 11-04-2013 04:17 PM

Thanks for the info Jeff. I was hoping someone would comment on the plugs :-)

jrbennett 11-04-2013 05:32 PM

I have .55mm (.022") listed for Platinum plugs and .70mm (.028") for non-platinum plugs

I'm sure .028" would be fine with those plugs

rpc356 11-05-2013 02:58 AM

Thanks jrbennett.


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