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how do i adjust timing on the prelude 5th gen?

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Old Nov 10, 2007 | 05:49 PM
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Default how do i adjust timing on the prelude 5th gen?

do you need to have a hondata to adjust the timing? my car is shaking violently after the front and rear motor mounts got replaced. the mounts are in and are secured properly (tripled check that). however, i do have motor mount inserts in both areas. but the reason why i had them replaced before was due to the car shaking because of a ripped mount. the orginal mount was one of the worst mounts i have ever seen. but after the new mount and all that good stuff the car isnt the same anymore. theres something wrong.

ineed to know. please advise.
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Old Nov 10, 2007 | 05:50 PM
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p.s. do motor mounts need to be broken into?
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Old Nov 10, 2007 | 05:52 PM
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Default Re: (androO)

you cant adjust timing on 5th gens
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Old Nov 10, 2007 | 10:59 PM
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Default Re: (98vtec)

ok so that eliminates one thing. could it be my idling? I'm currently idling at 500 rpms. Is that normal? maybe this could be the cause of nasty vibration.
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Old Nov 10, 2007 | 11:14 PM
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Default Re: (androO)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by androO &raquo;</TD></TR><TR><TD CLASS="quote">ok so that eliminates one thing. could it be my idling? I'm currently idling at 500 rpms. Is that normal? maybe this could be the cause of nasty vibration. </TD></TR></TABLE>

Turn the idle up a little and see what that does. With stiffer mounts you can have variations of smooth-to-vibrating between a few hundred rpms.
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Old Nov 11, 2007 | 09:32 PM
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Default Re: (Hawkze_2.3)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hawkze_2.3 &raquo;</TD></TR><TR><TD CLASS="quote">

Turn the idle up a little and see what that does. With stiffer mounts you can have variations of smooth-to-vibrating between a few hundred rpms.</TD></TR></TABLE>


how do i do that? doesnt the ECU control the idle?
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Old Nov 11, 2007 | 09:43 PM
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Default Re: (androO)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by androO &raquo;</TD></TR><TR><TD CLASS="quote">


how do i do that? doesnt the ECU control the idle? </TD></TR></TABLE>

Should be a screw on the throttle body to manually adjust it...if it has never been touched it will have a little wax covering the screw.
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Old Nov 11, 2007 | 11:03 PM
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Default Re: (Hawkze_2.3)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hawkze_2.3 &raquo;</TD></TR><TR><TD CLASS="quote">

Should be a screw on the throttle body to manually adjust it...if it has never been touched it will have a little wax covering the screw.</TD></TR></TABLE>

so if its idling low... should i turn right or left? because no matter which way i turn it... the instrument guage remains at 500 rpm which leads me to wonder if the ECU controls teh idling.

where should my need be sitting at? 750rpm should be teh norm right&gt;?

thanks hawk for helping me.
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Old Nov 12, 2007 | 07:14 AM
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Default Re: (androO)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by androO &raquo;</TD></TR><TR><TD CLASS="quote">

so if its idling low... should i turn right or left? because no matter which way i turn it... the instrument guage remains at 500 rpm which leads me to wonder if the ECU controls teh idling.

where should my need be sitting at? 750rpm should be teh norm right&gt;?

thanks hawk for helping me. </TD></TR></TABLE>



Well, if you're turning it and it's not doing anything then don't worry about it. Turning it left will back it out and cause the idle to get higher, but I guess maybe OBD2 won't let you do that?

The IACV has a lot to do with the idle and so does the FITV...you might try to clean/inspect those.
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Old Nov 12, 2007 | 09:02 AM
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Default Re: (98vtec)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 98vtec &raquo;</TD></TR><TR><TD CLASS="quote">you cant adjust timing on 5th gens</TD></TR></TABLE>
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Old Nov 12, 2007 | 09:05 AM
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Default

OBD whatever, you should be able to adjust the idle with that screw. Get it to 750rpm +/-50 as prescribed on the sticker under the hood, in the helms manual, in the search here, on google, in the chiltons manual, in the haynes manual, and in any other honda manual that exists on this earth.

In addition to the information on idle speed, the correct procedure for adjusting the idle on your car will also be contained in the manual.
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Old Nov 12, 2007 | 10:21 AM
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Default Re: (Hawkze_2.3)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hawkze_2.3 &raquo;</TD></TR><TR><TD CLASS="quote">



Well, if you're turning it and it's not doing anything then don't worry about it. Turning it left will back it out and cause the idle to get higher, but I guess maybe OBD2 won't let you do that?

The IACV has a lot to do with the idle and so does the FITV...you might try to clean/inspect those.</TD></TR></TABLE>

i'll inspect those as soon as I get off work. Very very strange. maybe the motor mounts inserts stiffen up the mounts really hard.

but i been in cars with motor mount inserts and they dont shake as crazy as mine. but i will take a look and inspect the IAVC and FITV

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