Do the Motorcraft spark plugs need to be gapped?

[Rodger Tellefson]

I went to NAPA yesterday to get a feeler gage, and the guy behind the counter said that if the plup tappers (like ours do) that they do not need to be gapped. Is that correct? Thanks.

 

[Fred]

Sounds funny to me. I thought they all had to be gapped.

 

[vern k 2]

all plugs should be checked for the correct gap before using

 

[Rodger Tellefson]

That's what I thought, too. Thanks guys.

 

[Johnny O]

The only plugs that don't need gapped, AFAIK, are Bosch doubles and +4's, which you shouldn't use in Fords anyway.

 

[Stephane Bolduc]

Yes they need to be gapped.



On the ST, the gap is pretty big; something like .065. It's almost a nickle.



Some people (if you do a search on the forums) reported that the gap on their original plugs where way out. Mine were pretty much right on.



Good luck replacing them; I did no. 1 & 2 throught the wheel well (just unsnap the flap behind the wheel (passenger side). I broke # 2 (and my swivel...); it was too seized.

 

[James FreemanJr]

I thought the gap on ST was .054? Atleast on my 2001 it is.

 

[Stephane Bolduc]

To-may-toes, To-ma-toes....



You are probably right, I went on top of my head while I was looking at other numbers in a spreadsheet....:blink: It's still a pretty big gap.



Anyway, Rodger can always look at the Chilton/Haynes book at any local parts store (don't have to buy it, just read it there). If buying a book; I would recommend the service manual.

 

[Richard L]

All spark plugs need to be gapped. Even if they claim they are pre-gapped, they need to be checked since some bozo at the parts store may have drop one.



...Rich

 

[Gypsy me]

Yep what the others said, even if they are pre-gapped, I'd check them.