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Gapping for spark Plugs

catfisher81

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London, Kentucky
Year, Model & Trim Level
1989 Ford Ranger XLT
Does anyone know the proper gapping width for a 4.0 set of motorcraft spark plugs.
 



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catfisher81

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June 22, 2009
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City, State
London, Kentucky
Year, Model & Trim Level
1989 Ford Ranger XLT
spark plug gapping

I think I will go with a .46 gap on all six plugs. thanks for the advice and help.:exp:
 












YBCold

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i use .54 gap. i think the proper gap is printed on a decal in the engine compartment where the latch to the hood is. it shows the vacuum routing at the bottom it tells you the proper gap.
 






$TheMoneyPit$

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elkton maryland
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1992 mazda navajo&97 xlt
.54 is what i always gap mine to my emission sticker says to and i found thats where the plugs perform the best
 






catfisher81

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1989 Ford Ranger XLT
Gapped them at .048 all six and I am running pretty dag on smooth.
thank you
chris
 






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