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** H22A hybrid Intake manifold vibrating loose!

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Old Oct 29, 2004 | 12:40 AM
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Default ** H22A hybrid Intake manifold vibrating loose!

JDM H22 / HCP Mount kit (OE Si driver's side mount, HCP front crossmember) / CM st. 3 clutch

The intake manifold breaks the IM studs off the head, causing the nuts to literally fall off one by one, which in turn = bad vacuum leak soon therafter. Top passenger side is always the first go.

Any suggestions to prevent this from happening? And I can't be the only one w/ this annoying problem...

-Ditch midsection that houses the IAB butterflies + diaphram (willing to sacrifice low end)
-Coat studs with anything?
-Rubber washers?

Thanks!
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Old Oct 29, 2004 | 12:39 PM
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Default Re: ** H22A hybrid Intake manifold vibrating loose! (Quick99Si)

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Old Oct 29, 2004 | 05:22 PM
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Default Re: ** H22A hybrid Intake manifold vibrating loose! (Quick99Si)

Are you using the brace that connects the IM to the block?

Are you putting proper torque on the nuts in the correct sequence?

What type of IM gasket are you using?
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Old Oct 29, 2004 | 09:31 PM
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Default Re: ** H22A hybrid Intake manifold vibrating loose! (si92hb)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by si92hb &raquo;</TD></TR><TR><TD CLASS="quote">Are you using the brace that connects the IM to the block?

Are you putting proper torque on the nuts in the correct sequence?

What type of IM gasket are you using?</TD></TR></TABLE>

Using the IM support bracket
Torqued down properly in correct torque sequence
Happened with both the OE gasket and Hondata's "heatshield"

Adi
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Old Oct 30, 2004 | 12:52 PM
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Default Re: ** H22A hybrid Intake manifold vibrating loose! (Quick99Si)

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Old Oct 30, 2004 | 05:33 PM
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Default Re: ** H22A hybrid Intake manifold vibrating loose! (Quick99Si)

When the studs break and you replace how are you installing them?

Do you back two nuts against each other and then torque them down?
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Old Oct 30, 2004 | 10:07 PM
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Default Re: ** H22A hybrid Intake manifold vibrating loose! (si92hb)

dude that is some scary ****, i would cry if that happened to me
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Old Oct 31, 2004 | 01:39 AM
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Default Re: ** H22A hybrid Intake manifold vibrating loose! (si92hb)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by si92hb &raquo;</TD></TR><TR><TD CLASS="quote">When the studs break and you replace how are you installing them?

Do you back two nuts against each other and then torque them down?</TD></TR></TABLE>

Not sure exactly what you mean there bro... I'm considering boring and re-tapping the holes in the head for some new thicker studs, then boring the IM holes, and getting new nuts..

And it's not scary, just annoying. 15mpg sucks to begin with, and then you have the presumed accelerated cabon build-up all ovah

Adi
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Old Oct 31, 2004 | 07:36 AM
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Default Re: ** H22A hybrid Intake manifold vibrating loose! (Quick99Si)

I was wondering how did you install the new studs into the head?

Say you removed the broken stud and now you have a threaded hole for the new stud, you get the new stud and begin screwing it into the hole. How are you screwing the stud into the hole? are you just grabbing it with some channel locks? I mean theres nothing to really grab onto right?

Whatever the case your motor must really be shaking, do you know anyone else with the mount setup like yours? Are you sure your manifold isn't up against anything?
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Old Oct 31, 2004 | 08:37 AM
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Default Re: ** H22A hybrid Intake manifold vibrating loose! (si92hb)

what kind of studs are you using? maybe you need higher grade hardware.
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