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Old 05-06-2008, 05:14 PM
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Real Name: Collin
Join Date: Apr 2008
Location: Indiana
Posts: 50
Jeep engine trouble.

Hey, guys. I'm a new guy with a "new" 84 CJ7. Just got it a couple weeks ago. Well, anyways, it has the 258 in it which has just been remaned 15000 miles ago, but it lopes like mad at idle. When it's revved up passed 1300 rpm, it runs smoothly. It has the MC2100 on it that's been rebuilt 3 times, once including myself, and it still lopes! Our mechanic thinks it's too big of a carb for the 4.2, but I believe my timing may be off a hair. What do you guys think?
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Old 05-06-2008, 05:45 PM
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Real Name: jeepster357
Join Date: May 2008
Location: Lakewood, Co.
Posts: 73
Re: Jeep engine trouble.

Do you know if this problem has been there since the rebuild? If so then its possible the that the camshaft might not be correct for your engine. Im not a expert so I wont attempt to speak on durations of valves opening and closing etc.

Oh and by the way, welcome to Jeepz, new guy here myself but these folks do seem knowledgeable so im sure you will get some ideas quickly.
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