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Thread: spark plugs.....

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    spark plugs.....

    What's the best plug to run in a 4.2l?
    I was thinking about the new E3 plugs that claim to cut emissions down and save fuel, plus the added bonus of apperently never having to change plugs again.
    Also anyone know of a good YouTube vid to watch on cleaning out the carb on the same engine?

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    do not use E3 plugs in a 4.2, they work like crap and actually make it run worse. same with a 4.0. Go with regular Champion plugs and it'll run like it should.

    as for the carb, pickup a rebuild kit ( 20$ at local parts store) Best option is to swap out your carter 2BBL carb ( assuming that's what your running) and install a MC2100 carb.

    my suggestions are, little things you can do to on the side seeing as we are talking engines is to do a nutter bypass and the ford Team Rush upgrade. Both compliment the MC2100 nicely. Also a better coil. I believe CTD NUT on here has a supercoil for stupid cheap for sale.

    Just my 0.02

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    spark plugs.....

    With the old motocraft ford ignition on that motor you won't notice anything at all no matter what plugs. Getting a better coil would help more than fancy plugs.


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    Quote Originally Posted by Chrisbuilt View Post
    With the old motocraft ford ignition on that motor you won't notice anything at all no matter what plugs. Getting a better coil would help more than fancy plugs.


    Sent from iThingy
    The best thing I did to my 4.2 was the hei from a gm v6 it ran way better
    I thought life handed you lemons..... who the phuk is throwing them at my head !!!

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    It has an aftermarket coil already, can't see the name on it due to grime but its yellow if that helps, I will look in the morning to see what carb is in it, a lot of work was done to this thing before I got it but I have to figure it all out on my own. I'm going to go with NGK over champ's I've always had better luck with them

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    If the coil is yellow it mite be from accel but take photos of the module on the drivers fender and the carb at the back as well as the distributor to see if it has been nuttered.

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    I added pictures to my album, the jeep started out tan and is now black. The coil is a super stack. I don't know how to get the pictures to show in here

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    Thanks for helping CDT NUT, I know the carb has not been done in the last 10 years, ive never done an automotive card before but it can't be to hard its all just nuts and bolts, should I look into a bigger carb?

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    I run the Carter on my Jeep, and I get 22mpg on average... they are not as terrible as everyone makes them out to be, they just require TLC and a rebuild once a year.

    I would fix up your existing crab, and nutter by-pass while your at it, And you will be much happier!

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    What exactly is a nutter bypass? And how do I go about it?

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    Quote Originally Posted by ReversePhase View Post
    I run the Carter on my Jeep, and I get 22mpg on average... they are not as terrible as everyone makes them out to be, they just require TLC and a rebuild once a year.

    I would fix up your existing crab, and nutter by-pass while your at it, And you will be much happier!
    *Cough* Bull Ship *Cough* Down hill with a tail wind and in neutral....maybe....
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    Lets go on a road trip, ill bet you a beer

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    Quote Originally Posted by ReversePhase View Post
    Lets go on a road trip, ill bet you a beer
    I'll just buy you a case of PBR's now! my YJ gets gallons per mile....even with an HEI and Holly Carb.

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    Quote Originally Posted by ReversePhase View Post
    Lets go on a road trip, ill bet you a beer
    I'd like to get in on this too, I have never seen any conventional type cj yj tj that actually does better than 20mpg and we are talking about 3.8 miles in a gallon right?

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    Quote Originally Posted by U Turn View Post
    I'd like to get in on this too, I have never seen any conventional type cj yj tj that actually does better than 20mpg and we are talking about 3.8 miles in a gallon right?
    I didn't know you could get miles in a gallon, but what do I know . Seriously though, the way the vehicle has been built or not built will make a big difference, as well as the driving style of the person behind the wheel.

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    Quote Originally Posted by 90YJWRANGLERLIFTED View Post
    What exactly is a nutter bypass? And how do I go aabout it?
    BUMP, still don't know what you guys are talking about

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    Quote Originally Posted by 90YJWRANGLERLIFTED View Post
    BUMP, still don't know what you guys are talking about
    LMGTFY: https://www.google.ca/search?q=nutte...&client=safari

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    Thanks again CDT NUT, none of the wires were twisted from factory were they? This may have already been done to my Jeep, I will go take a picture and post it in my album

    Just noticed, in pictures above the one with the coil, you can see the twisted purple and orange wire and the black one has been cut and reconnected as well
    Last edited by 90YJWRANGLERLIFTED; 08-16-2013 at 12:37 PM.

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    Looking at the pictures you posted, you still have a lot of the junk that is removed after a nutter bypass, for example the connection to the stepper motor. So you may have only been partially nutterd.

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