Gapped plugs wrong...big deal?

[-al-]

Gapped the plugs on a 87 f350 / 460ci wrong. I gapped them to .035 when they should be .044. Should I pull them all and re-gap? Started it up after doing the plugs and it seems to run fine.


-AL

[git-r-done]

it should be fine. newer ignition systems have something like 300,000 volts, so you can go about 100,000 miles between tune-ups, so it should be fine

[-al-]

I aggree with that but mine are gapped too SMALL, so there will be less spark...possibly not burning all the fuel in the coffee can sized cylenders of the 460 motor.

[unclebubbles]

Originally Posted by -al-

Gapped the plugs on a 87 f350 / 460ci wrong. I gapped them to .035 when they should be .044. Should I pull them all and re-gap? Started it up after doing the plugs and it seems to run fine.


-AL

The 460 has enough power, that the average driver wouldnt see the slight difference in performance. If you did a comparison test, with the plugs gapped correctly, you`d see the difference. 460s dont get great fuel mileage to start with, so youll be money ahead to regap them correctly, for best performance.
Later
Ed
.

[Crasen]

I would personally regap them. I have heard that too small of a gap can cause spark knock on some engines. However there are many people that actually believe they do not need to gap new plugs because they are "pregapped". I have seen spark plugs that all came with the correct gap, and I have seen them all come with the wrong gap. Personally I think it is too easy and simple to make sure the spark plug gap is correct to not do it. This may be why I would pull the plugs and regap to make sure. Odds are they would be just fine as they are. But I would rather be sure

[git-r-done]

I would just leave them, unless you really feel like re-gapping them. or if your fuel milage takes a big hit. (as if it gets good milage anyways). but it is all up to you.

[truckdude239]

regap them ford gaped them at .044 for an reason lol