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Old 04-10-2012, 04:06 PM   #1
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4cy Exaust Manifold Bolt Question

4 2.5 YJ....Somehow I seem to have lost the rear bolt on the exhaust manifold...that and the others being loose might explain some of the noise...

can anyone tell me....should this be a bolt or a stud? pressed in or screwed in?

and what size????

Thanks
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Old 04-10-2012, 04:27 PM   #2
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The one on the very back is a stud and the one on the very front should be a stud if I can remember right the others are all bolts... When I did mine I went to the dealer and bought the stud than went to fastenal (bolt store... I guess home depot would work) and got some bolts, nuts and washers all grade 8 that were the same size and they have been in ever since

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Old 04-10-2012, 04:27 PM   #3
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All of them should screw in
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Old 04-10-2012, 04:56 PM   #4
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Its a 3/8 thread I forget how long though... torque was 25lbs off the top of my head... pull one and but one... If its the very rear bottom its suppose to be a stud, it could have been snapped off... which is a bunch of fun to get out...
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Old 04-10-2012, 05:07 PM   #5
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Thanks much for the advice..I't the very back upper. Someone told me its a 3/8-16 but didn't check to see if its snapped off yet. That would suck! ......
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