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exactly how do you know if you bent your valves?

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Old Feb 1, 2004 | 01:18 AM
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Default exactly how do you know if you bent your valves?

what are the symptons? TIA
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Old Feb 1, 2004 | 01:40 AM
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Do a compression and leakdown test. Also, you'll more then likely you'll hear something out of whack with a bent valve.
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Old Feb 1, 2004 | 07:14 AM
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Default Re: exactly how do you know if you bent your valves? (SLOW4drINTEG)

your engine would be running like crap, it will feel weak
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Old Feb 1, 2004 | 07:42 AM
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Default Re: exactly how do you know if you bent your valves? (SLOW4drINTEG)

Lumpy idle. Car still drives decent at low rpm but bogs down horrible when you give it gas. These were my symptoms when my timing belt slipped a few teeth. Heck I didn't think it was valves at first and spent two days trying to fix a bad gas problem (or so I thought)
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Old Feb 1, 2004 | 07:44 AM
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Default Re: exactly how do you know if you bent your valves? (ActiveAero)

when i had two intake valves bent on #1 i was backfiring out the intake and running on three cylinders, it sounded like ***

its not a hard thing to miss
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Old Feb 1, 2004 | 10:20 AM
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Default Re: exactly how do you know if you bent your valves? (SLOW4drINTEG)

do the dollar bill trick. place a dollar bill right in front of your exhaust with the engine running at idle. the dollar bill should be pulsing out away from the exhaust. if it get suck in towards the inside of the exhaust then you know theres a problem
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Old Feb 1, 2004 | 10:35 AM
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Default Re: exactly how do you know if you bent your valves? (SLOW4drINTEG)

dammit i think my valves are bent ....

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by evilhatch2.0 &raquo;</TD></TR><TR><TD CLASS="quote">your engine would be running like crap, it will feel weak</TD></TR></TABLE>
yup...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ActiveAero &raquo;</TD></TR><TR><TD CLASS="quote">Lumpy idle. Car still drives decent at low rpm but bogs down horrible when you give it gas. These were my symptoms when my timing belt slipped a few teeth. Heck I didn't think it was valves at first and spent two days trying to fix a bad gas problem (or so I thought) </TD></TR></TABLE>

yup...i think mine was off by 1..

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hybridize &raquo;</TD></TR><TR><TD CLASS="quote">Do a compression and leakdown test. Also, you'll more then likely you'll hear something out of whack with a bent valve.</TD></TR></TABLE>
will do asap...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHCArchangel &raquo;</TD></TR><TR><TD CLASS="quote">when i had two intake valves bent on #1 i was backfiring out the intake and running on three cylinders, it sounded like ***

its not a hard thing to miss</TD></TR></TABLE>

hmm does sound pretty weird at times...
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Old Feb 1, 2004 | 01:21 PM
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Default Re: exactly how do you know if you bent your valves? (SLOW4drINTEG)

I once had four exhaust valves bent so slightly that they didn't show up on a compression test. Adjust your valves and run the engine, then check the clearances again. If they're out of whack then you know you have a problem.
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Old Feb 1, 2004 | 07:40 PM
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Default Re: exactly how do you know if you bent your valves? (Lsos)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Lsos &raquo;</TD></TR><TR><TD CLASS="quote">I once had four exhaust valves bent so slightly that they didn't show up on a compression test. Adjust your valves and run the engine, then check the clearances again. If they're out of whack then you know you have a problem.</TD></TR></TABLE>

will do on the weekends...college sucks

will it be okay if i drive it daily? say rev no over 3k and about 25 miles a day?
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Old Feb 1, 2004 | 09:21 PM
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Default Re: exactly how do you know if you bent your valves? (SLOW4drINTEG)

Thats all up to you, you will start wearing other things like valves guides though so keep that in mind.
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Old Feb 2, 2004 | 10:06 AM
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Default Re: exactly how do you know if you bent your valves? (SLOW4drINTEG)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SLOW4drINTEG &raquo;</TD></TR><TR><TD CLASS="quote">

will do on the weekends...college sucks

will it be okay if i drive it daily? say rev no over 3k and about 25 miles a day? </TD></TR></TABLE>

I wouldnt drive it at all unless you have no choise.. I bent the valves in my prelude and kept driving it for a little while and the bent valves wore there own seat into the head..
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Old Feb 2, 2004 | 10:15 AM
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If one of your cylinder is out, your car should sound like a motorcyle.
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Old Feb 2, 2004 | 10:35 AM
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drill out ur valve guides and u will b fine. lol jk. not all of these hapen when u bend some valves, if u see any of these symptoms you prolly have a bent valve. biggest one is no power when u rev. bad stuff. lol peace
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Old Feb 2, 2004 | 12:08 PM
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Default Re: (KraZEtEggIE)

Do a quick vacuum test; it'll tell you if your valves are bent.
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Old Feb 2, 2004 | 02:42 PM
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Default Re: (xsiv)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xsiv &raquo;</TD></TR><TR><TD CLASS="quote">Do a quick vacuum test; it'll tell you if your valves are bent.</TD></TR></TABLE>

never did a vaccum test before but will look into it thanks
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Old Feb 2, 2004 | 02:56 PM
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Default Re: (SLOW4drINTEG)

Vacuum gauges are only like 20 bucks and can tell you a lot.
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Old Feb 3, 2004 | 09:10 AM
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vacum test? is that like a compression test or do you mean hook it up to ur nitake manifold? i never heard of that before, more info would be great
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Old Feb 4, 2004 | 03:45 PM
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Default Re: (KraZEtEggIE)

okay did the "dollar" test and seemed normal (being blown away from the exhaust) waiting to do a vaccum test later tonight going to autozone to rent one *finger crossed*
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Old Feb 18, 2004 | 09:38 PM
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how can you tell if your valves are bent and the head is off the car? i have a b16 head and some of the valves are not completely closed, they also have a redish color to them

thanks
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Old Feb 18, 2004 | 09:47 PM
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Default Re: (teamsol)

with cams removed, all valves should be fully closed, if not, probably have bent valves.
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Old Feb 19, 2004 | 01:57 PM
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without removing the cams you wouldnt be able to tell? thanks for the reply by the way
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