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
06-14-2013 06:24 PM
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!
06-16-2013 09:50 AM
is it the 6 or 4 cylinder?
06-17-2013 12:49 PM
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.