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spark plugs gap
hi all what is the gap the pfr7b plugs come out of the box are thay 0.7mm
I used to use pfr6b i no there 0.8 and had adjust the gap to 0.7mm any one no. thanks iain |
0.65 - 0.7mm would be ideal.
Phil |
Originally Posted by PeeVee
(Post 8977169)
0.65 - 0.7mm would be ideal.
Phil thanks iain |
My last set where all over the place, 1mm to 0.6:wonder:
Set them to 0.65:thumb: |
Originally Posted by ukscooby2000
(Post 8977227)
Y do i need to adjust the gap is there a reason
thanks iain If the gap is too small then the spark won't be large enough to ignite the fuel/air mix properly. If the gap is too large then the spark will be too weak by the time it has jumped the gap & again it won't ignite the mixture properly. |
Originally Posted by PeeVee
(Post 8977452)
If you don't adjust to the correct gap you will find that she will missfire under load when on boost.
If the gap is too small then the spark won't be large enough to ignite the fuel/air mix properly. If the gap is too large then the spark will be too weak by the time it has jumped the gap & again it won't ignite the mixture properly. |
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