is it necessary to check gap on these?
513433
It is generally understood that iridium plugs can very easily be damaged, even by just checking the gap. In eight years of using iridium plugs in my jet ski, motorcycle, and Yamaha twin jet boat I never check the gap because it can damage the plug. Not worth it. I've never had problems with new iridium plugs working properly.
513434
Thank you for inquiry. This NGK plug comes as the factory pre-gapped but it is always good to physically check the Gap as it may have shifted during transportation. Please, see below spec;Thread Size: 10mmHex Size: 5/8" (16mm)Reach: 19mm (3/4")Seat Type: GasketGap: .032" (0.8mm)Heat Range: 9Thread Pitch: 1.0mmDon't hesitate to contact us if we may further assist you. Thank you.
513435
No. Should be pre-set. However, you really should check gap on all plugs you install into an engine. It is good practice, and you can note it as a reference for performance. You may wish to vary the gap based on your requirements for performance, power of engine, and the load you place on it. If you don't know, or have a stock engine, just make sure all the gaps are the same. Use the factory recommend gap, which as we said, should be pre-set. Don't reset it unless you happen to hit the head when installing, requiring a re-check.
513436
The gap is set to my mfg spec. It is good practice to check the gap to your mfg spec.
1503378
yes. Just get the ones that match your car and install. Do not gap them, already gapped for your car.
672578
You need to check what the gap is for your vehicle. When I receive these they were not correctly gapped.
2055181
I don't think so, there shouldn't be any gaps when it's in the unlocked position.
1299688
Yes, the gap on these is set during manufacturing at .040. The gap is not intended to be modified. Always a good idea to check first, but I've never found one of these to be incorrect.
938086
I baught them for my o05 expedition 5.4L 3valve and i think 2 of them were a little off but yea they are pre gapped i would alwas double check though
1434536
You need to consult Ford sites for that info. Be very careful gapping iridium plugs; the tip of the electrode is tiny and easily damaged. NGK SAYS NOT TO USE A "DISK" TYPE OF GAPPING TOOL. I agree, but if used very gently you can use one to confirm the gap. Otherwise use a "wire" gap tool or feeler gauge.
2135107
If you have an inch of clearance (about what I have) you have plenty. Should check adjustment after a mile or so. I never got them tight enough on installation. Especially after using them a few times. Kinks to iron out I guess.
1260231
No there shouldn't be. The biggest gaps might be between roof and the sides but they are very small. Like maybe bugs? But we've had no problems since early spring installing it
672581
.060 They're pre-gapped out of the box because they can be damaged when gapping.
488041
When I use it, I really can't tell that the gap is there. No discomfort on my end using this product.
730607
That's what I use. You might want to check with them first if you're not sure.
2077846
Yes, there is a gap but it isn't too large! We thought the same thing as you before we installed the trim kit, and I also double-checked with Panasonic to make sure we had bought the correct kit because it just didn't look right. They assured me it was the right kit for our unit and now that it is installed it fits fine and looks fine. Don't worry.
1442737
I would first check all of your consumables. It is a scratch start so no gap. If it won't arc it may be the unit. Not a big deal. I had that and returned it got a new one and have cut everything with great results.
1292805
I would have to say yes. I tested for you by aligning a hard cover, squared off notebook-type book and no gaps. Hope this helps.
1075238
The gap is much better than the OEM, another reason why I picked these over the OEM. For me their is no issues with the gap.
1370876
No different vehicles have different type of gap electrode requirements. so check with the dealer