Hey guys, need some advise. A buddy and I was having a friendly race this past weekend when I miss shifted from first to second , now theres this ticking/tapping sound coming from my motor. The motor still feels very strong and normal besides the tapping. What do you guys think this sound could be? bent valves maybe? or do I just need adjusting?? Any of your opinions would be greatly appreciated! Thanks in advance!!!!!!!

 

Bent valves!

 

Leak down test time... If you hear air escaping from your exhaust pipe, you've got bent exhaust valves... If you hear air escaping from your intake manifold, you've got bent intake valves... If you hear air escaping from your breather, you've got bad rings/ringlands, etc etc blah blah blah.

Run a leak down, and report back. The leak down tool isn't expensive, and can be bought at most auto part stores.

 

i was wondering, when you misshifted from 1-2 were you not in 2 and just hit the gas? so you ended up putting it in neutral.. wouldn't the rev-limiter catch this since its not mechanical over-rev?

 

^ I was wondering the same thing... As long as you don't go from, let's say, top of third into second, the rev limiter should be able to catch it before any damage occurs.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dk127 &raquo;</TD></TR><TR><TD CLASS="quote">i was wondering, when you misshifted from 1-2 were you not in 2 and just hit the gas? so you ended up putting it in neutral.. wouldn't the rev-limiter catch this since its not mechanical over-rev?</TD></TR></TABLE>

 

hardly doubt its a betn valve, especially the way you described what happend...if its a ticking noise, you just might need a valve adjustment

 

locate the area of the noise.
get a long screw driver philip or screw dosen't matter
or a long skinny stick about 12"
turn engine on and let it idle.
place the stick on the bottom of the block above the oil pan.
place other end of stick on your ear so you can listen to the noise.
then place stick on the head like on top of your valve cover.
again listen to where the noise is louder. try diffrent area of your block
and head to kinda pin point the louder area.
so that way you know what area of the engine is making the noise.
lower block area could mean bearing. mid area ring piston slap bent valve closer to valve cover loose valve, ect.....

Warning keep everything clear of moving parts such as long hair, necklace, or any other thing that might get caught on moving parts.

 

thanks for all your input guys. If I do have a bent valve, what harm can I do to my motor if I keep driving it???

 

Alot. Do remember if that bent valve drops. kiss you whole motor good bye.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VPR-01CTR &raquo;</TD></TR><TR><TD CLASS="quote">Hey guys, need some advise. A buddy and I was having a friendly race this past weekend when I miss shifted from first to second , now theres this ticking/tapping sound coming from my motor. The motor still feels very strong and normal besides the tapping. What do you guys think this sound could be? bent valves maybe? or do I just need adjusting?? Any of your opinions would be greatly appreciated! Thanks in advance!!!!!!! </TD></TR></TABLE>

Ticking/Tapping could be just need valve adjustment.......At idle is it noticable from inside the car with the windows up and hood down.......?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hooch’n &raquo;</TD></TR><TR><TD CLASS="quote">Ticking/Tapping could be just need valve adjustment.......At idle is it noticable from inside the car with the windows up and hood down.......?</TD></TR></TABLE>Barely

 

how did you mis-shift from 1 to 2? I posted something last week about how i mis-shifted my ITR from 3 to 2, and that could have caused serious damage, but luckly it looks like it just bent valves.

Im my case, there was no compression left. I had 95-100% leak down from each cylinder. I coulnd't start my car. In your case, it sounds like you can run it and you even dont experience any power degradation, so it dont' seem like it's a bent valve.... or at least not as bad as mine were. So my point is if i had just bent my valves from a 3 to 2 shift, and thats the only thing that happened, I wouldn't think that your shift from 1 to 2 would be that bad. but you can never be too sure... Do a compression test for starters.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dk127 &raquo;</TD></TR><TR><TD CLASS="quote">i was wondering, when you misshifted from 1-2 were you not in 2 and just hit the gas? so you ended up putting it in neutral.. wouldn't the rev-limiter catch this since its not mechanical over-rev?</TD></TR></TABLE>


um.. i don't think you answered this....

because if you just hit the gas in neutral you'll hit the rev-limiter and you should have no damage...

sounds to me like all you need is a valve adjustment.

if the ticking is barely noticible, it might have already been going on and you never noticed it, until this misshift, and then you start to think you messed your car up and start listening for weird noises. How many miles has it been since your last adjustment? i think the manual says every 30,000 miles you should have one.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dk127 &raquo;</TD></TR><TR><TD CLASS="quote">


um.. i don't think you answered this....

because if you just hit the gas in neutral you'll hit the rev-limiter and you should have no damage...

sounds to me like all you need is a valve adjustment.

if the ticking is barely noticible, it might have already been going on and you never noticed it, until this misshift, and then you start to think you messed your car up and start listening for weird noises. How many miles has it been since your last adjustment? i think the manual says every 30,000 miles you should have one. </TD></TR></TABLE>okay, when i shifted from first to second, it did not go into gear. it stayed in neutral as i stepped on the gas. AND the ecu I am using does not have a rev limiter (I know, thats stupid), and Im sure it did not go way over than 9000 rpm. 9300 at the most, nothing higher than that. Thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VPR-01CTR &raquo;</TD></TR><TR><TD CLASS="quote">okay, when i shifted from first to second, it did not go into gear. it stayed in neutral as i stepped on the gas. AND the ecu I am using does not have a rev limiter (I know, thats stupid), and Im sure it did not go way over than 9000 rpm. 9300 at the most, nothing higher than that. Thanks </TD></TR></TABLE>

ahhh.... well then, do a leakdown test and post back. good luck

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pccheng &raquo;</TD></TR><TR><TD CLASS="quote">how did you mis-shift from 1 to 2? I posted something last week about how i mis-shifted my ITR from 3 to 2, and that could have caused serious damage, but luckly it looks like it just bent valves.

Im my case, there was no compression left. I had 95-100% leak down from each cylinder. I coulnd't start my car. In your case, it sounds like you can run it and you even dont experience any power degradation, so it dont' seem like it's a bent valve.... or at least not as bad as mine were. So my point is if i had just bent my valves from a 3 to 2 shift, and thats the only thing that happened, I wouldn't think that your shift from 1 to 2 would be that bad. but you can never be too sure... Do a compression test for starters.</TD></TR></TABLE>I hope your right bro!!!

 

hope you didnt span a bearing. had same issue and after 20 miles of driving it back home it happened...if you rev it and the gets louder and faster. thats your clue. either way its time for upgrade on the way. g/l.

 

you might need a valve lash adjustment, valves might be bent or lifters making noise

 

waiting for a friend to perform a leakdown test on my motor, BUT, please feel free to voice your opinions or suggestions till I get it done. Thanks again for everyones help.

 

This thread is pretty good. Lots of interesting diag tricks

 

i was extremely lucky on track when i went to go from top of 4th at around 9,000rpm to fifth and my sweaty hand slipped and it went into third (note, always wear gloves). it zinged off about 11,000rpm i reckon. but there have been no ill side affects, no extra noise or loss in performance, in fact after the track it feels even stronger

shouldn't be any problems or anything bent?


sorry for the thread hi-jack btw

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tartje &raquo;</TD></TR><TR><TD CLASS="quote">i was extremely lucky on track when i went to go from top of 4th at around 9,000rpm to fifth and my sweaty hand slipped and it went into third (note, always wear gloves). it zinged off about 11,000rpm i reckon. but there have been no ill side affects, no extra noise or loss in performance, in fact after the track it feels even stronger

shouldn't be any problems or anything bent?


sorry for the thread hi-jack btw</TD></TR></TABLE>

i've always read of crazy misshifts with no ill effects, but not often.

you were really lucky.

 

don't worry about it too much...

1: a mis-shift from 1st to 2nd is nothing when it comes to these motors, you really have to worry about backwards mis-shifts 3rd &gt;to&gt; 2nd ect... like mentioned before

2: these motors have loud valve trains as they are and you're probably just noticing it more because you got paranoid of what happened &lt;---

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JUN.R &raquo;</TD></TR><TR><TD CLASS="quote">don't worry about it too much...

1: a mis-shift from 1st to 2nd is nothing when it comes to these motors, you really have to worry about backwards mis-shifts 3rd &gt;to&gt; 2nd ect... like mentioned before

2: these motors have loud valve trains as they are and you're probably just noticing it more because you got paranoid of what happened &lt;---</TD></TR></TABLE>Hope so man, got my fingers crossed!!!