Help Removing Upper Intake Manifold - NoPistons -Mazda Rx7 & Rx8 Rotary Forum

2nd Generation Specific 1986-1992 Discussion

Help Removing Upper Intake Manifold

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Old 01-10-2003, 08:49 PM
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I need some help asap getting my upperintake manifold off. I undid the bolts and hoses as in the FSM. somebody please help me out. i'm trying to get it off so i can get to the bac and fix my coolant leak.
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Old 01-10-2003, 09:52 PM
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the BACV is either on the dynamic chamber (NA) or on the upper intake manifold (turbo), either way you should have to remove it to get to the BACV ?
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Old 01-10-2003, 10:16 PM
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yah the bac is on top? is it a turbo or na?



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Old 01-10-2003, 10:25 PM
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btw i meant you shouldnt have to remove it...
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Old 01-10-2003, 10:50 PM
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umm well i have an s4 tII. but there is coolant underneath the upper intake manifold. I just need ot get it off so i cna find exactly where it is leaking from. I think it is either one of the bac lines or some other coolant seal in that area. it drips down onto the downpipe heatshield when the car is running and onto the ground as well. SO i need to fix it. If anybody has some tips to get that sucker off i';d appreciate it.
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Old 01-11-2003, 01:38 AM
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Well there's basically nothing to it, 4 nuts and a long bolt. Take off throttle cable and unplug tps... Take off coolant hose to tb. Then your there.
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Old 01-11-2003, 12:48 PM
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hmm, that's what i thought. mine seems to be stuck on there pretty good though. we'll see. i'll keep you posted. i've hit the thing with a hammer a bunch too. it jsut seems like there was something else holding it down. I'm moderately strogn and i couldn't budge the thing.
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Old 01-11-2003, 01:45 PM
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Originally Posted by M's' date='Jan 11 2003, 12:48 PM
hmm, that's what i thought. mine seems to be stuck on there pretty good though. we'll see. i'll keep you posted. i've hit the thing with a hammer a bunch too. it jsut seems like there was something else holding it down. I'm moderately strogn and i couldn't budge the thing.
yeah its just really stuck.
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Old 01-11-2003, 02:29 PM
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I think there is a nut or two over by the inlet to the TB. I can't remember, because if there is, the nut(s) was missing on mine.
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Old 01-11-2003, 03:19 PM
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ok i used a damn 2 foot crow bar and the thing didn't budge. i undid all 4 nuts and the long bolt. I also undid the nut that is attached to the trottle body and the intercooler bracket. SO there shouldn't be anything left holding it on. Can anybody please help!
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