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Old 06-14-2013, 06:16 PM   #1
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NEED Help 1990 wrangler

Took my 1990 to smog Smog said it had a cracked intake manifold pulled manifold was broke # 2 intake bottom. Got a used intake and new exhaust
manifold. Install same. Think the intake cracked again same spot . Made sure that line-up dowel was in right I can see that it is in. Torqued to 20ft lbs. torque was done in circle from center outward to ends. Will start disassy in morn to confirm PLEASE HELP

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Old 06-14-2013, 07:24 PM   #2
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Post a pic of the crack, normally they wont crack unless there is something in the way holding part of that cylinder up ad you torque it and POP!

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Old 06-16-2013, 10:50 AM   #3
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is it the 6 or 4 cylinder?
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Old 06-17-2013, 01:49 PM   #4
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the main thing that goes wrong with straight 6 having intake and exhaust right next to eachother is warping the head. Take it off and a good draw filing to check for flatness should tell you if its warped enough to break the intake.
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