E3 Spark Plugs
- Thread starter CJ3Flyr
- Start date
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I don't have them in the 4-runner yet. I know that it's light years away in comparison, but I do have the small engine E3's in my JD lawn tractor. I will say without a doubt that it starts easier than ever before, and also idles a lot smoother. And the tractors only a year old, so it's not like the old plugs were junk and I just forgot how it's supposed to run. Only needing to buy 2 plugs for the tractor was incentive to give them a try. Now I can justify their cost for 8 of 'em for the 4-runner someday. I am dreading that though, it looks like a real PITA.........
CJ3Flyr
Super Moderator
Cool, I'll probably try a set if they have the right ones for my V6. They had a 502 (or 496, I forget) with a MAF/O2 sensing fuel injection on the dyno. The difference was amazing. I personally don't care about the WOT horsepower but the BSFC (brake specific fuel consumption) was appreciably better at all rpm ranges.
:cheers:
:cheers:
Best of luck with them, and post back any feedback on them. I'm curious how they will perform in an actual real world vehicle, not just a lawn tractor, or on a dyno. I saw a portion of the horsepower tv test and I was quite impressed with those numbers, just from a plug change.........but that was all in a dyno lab. I don't drive in a lab......
CJ3Flyr
Super Moderator
I need to research again. I forget if it was E3's or another 'special' plug but they claimed the plug crossed to our plug but the reach was too short. SCRunner, If you get to it first make sure the reach is correct.
I don't think changing the plugs will be hard. It does have the coils right on the plugs but that's no big deal and access looks good.
:cheers:
I don't think changing the plugs will be hard. It does have the coils right on the plugs but that's no big deal and access looks good.
:cheers:
SCRunner
New member
CJ3Flyr said:
i'm gonna admit my complete ignorance up front; i've never changed the plugs in a car with the coils on them. do i need a special tool? also, what is the "reach" that you are referring to? is that essentially the gap in these spark plugs since there isn't a "conventional" gap on them?
but, you're right, access does look decent. if i can figure out how to get them out, i'll do this this afternoon!
CJ3Flyr
Super Moderator
SCRunner said:
A regular 3/8 drive socket set usually comes with a 5/8" sparkplug wrench. That's the only specialty tool. You'll also need some spark plug wire grease to dab on the porcelin part of the plug. As far as torquing them goes there's a fine line. The gasket is designed to be crushed somewhat. The threads that accept the spark plug are aluminum. Too loose is bad, too tight may strip the threads in the engine. If you aren't going to use a torque wrench then spin the plug in by hand. When the plug begins to resist (ie crush the washer) go about 1/2-2/3 of turn and stop. I personally like to put a drop of oil on the threads. There's a few schools of thought on that (the oil thing).
Let us know how it works out and don't let me scare you, it's not hard to do.
:cheers:
