This is topic Spark Plug Woes :( in forum Tech Talk at Northern California Ford Owners  .


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Posted by Gear Head (Member # 779) on :
 
I have Autolite 25's and originally gapped them at .054 (what's recomended).

I removed them today and the gap is still at .054 but the electrode is frosty white.
(I tried to take a good picture sevral times but all of them came out blurry)

*Does this mean that I am running lean? I do have a 161,000 mile motor with the original fuel pump and it is pretty loud.
 

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Posted by Black94 5.0 (Member # 655) on :
 
Yeah, sounds a little lean...If its a nice light brown color it would be best....

Whats your timming at?....What fuel do you run, 91?

If thats all ledgit, you might wanna invest in a fuel pressure gauge....
 

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Posted by Gear Head (Member # 779) on :
 
Well the last time I set my timing it was at 14 degrees and all I have run is 91 octane except the past two weeks I have been running 89.

What do you think?
 

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Posted by Gear Head (Member # 779) on :
 
TTT
 

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Posted by st5150 (Member # 51) on :
 
Sounds about right for an EFI car. Here is what mine look like:





 

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Posted by Gear Head (Member # 779) on :
 

quote:

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Originally posted by st5150:
Sounds about right for an EFI car. Here is what mine look like:

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