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post #1 of (permalink) Old 05-15-2001, 08:27 PM
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yj tune up Q\'s

I am getting ready to tune up my 93 4.0 yj.. I have some 8mm universal accell wires I want to use. What plugs, rotor, cap, ect would you guys recommend me to use for the best results in power. Thanks guys... steve

4in currie lift, 4.56's, true trac, and 33's.. yeah it's a start!
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post #2 of (permalink) Old 05-15-2001, 08:51 PM
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Re: yj tune up Q\'s

I just use factory stuff, only because I get it real cheap. There is a Ford cap adapt that will fit the Lucas dist. that is in your 4.0. Something like the TR upgrade. You will have to go to Checker or NAPA, and have them look through their books. I think that there is only 3 different stlyes, so it shouldn't bee too hard. The 6 cylinder Ford, with screws, not clips.

I would recommend buying a can of the Mopar combustion chamber conditioner, and running it down the throttle plates and into the idle air controller before you change the plugs, This stuff works great! It will not only clean out the iac passages, but will remove carbon buildup behind the valves and in the combustion chamber. This makes fuel injection work much better, as it will now have the ability to rob the heat from the intake valve for better atominization. A good can of high dollar injector cleaner, like 44k, will also do wonders. Maybe do this the day ahead of your cap, rotor, wire, plug change. This will prevent the plugs from "splashing".

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