vietdragontekx

i mishift today going from 3rd to second instead of fourth. the car shut of and won't turn back on. it crank but won't start. just got it towl home, took apart the valve cover. the timing belt seem fine, the camshaft move when i crank. how can you tell if the valve is bend? anyone know what else could happeN?

InvaderTrax

There's only a .003462% chance you bent a valve by mis-shifting. Does it crank normally? Or is it slow? Do you hear any grinding noises or anything?

94Vtecluder

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by InvaderTrax &raquo;</TD></TR><TR><TD CLASS="quote">There's only a .003462% chance you bent a valve by mis-shifting. Does it crank normally? Or is it slow? Do you hear any grinding noises or anything?</TD></TR></TABLE>

100% Incorrect

vietdragontekx

it crank, no grinding sound, mishift have a high chance of bending valve dude...

98vtec

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by InvaderTrax &raquo;</TD></TR><TR><TD CLASS="quote">There's only a .003462% chance you bent a valve by mis-shifting. Does it crank normally? Or is it slow? Do you hear any grinding noises or anything?</TD></TR></TABLE>

its ALOT higher than that

vietdragontekx

im not asking for the chances or percentage, i just want some help guys .

Don Jefe

Poor guy, he asks for help, and he gets percentages!

If i knew, i would tell you bro. Good luck!

onefastrx7turbo

compression test will set you free

syntax.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by onefastrx7turbo &raquo;</TD></TR><TR><TD CLASS="quote">compression test will set you free</TD></TR></TABLE>

x2
the only way to tell is by doing a compression test. But if it shut down immediately after misshifting like that, theres a good chance you fubar'd it.

The Weather Man

A compression test won't do **** but tell you that you're losing compression.

A leak down test will set you free - listen to find out if its coming through the valves. Remove your intake to see if air is coming back through there.

NeriVTEC

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by The Weather Man &raquo;</TD></TR><TR><TD CLASS="quote">A compression test won't do **** but tell you that you're losing compression.

A leak down test will set you free - listen to find out if its coming through the valves. Remove your intake to see if air is coming back through there. </TD></TR></TABLE>

I agree

vietdragontekx

im going to take out the head soon and check my block too. by the way the car crank slower then before.

eluder33

if the compression is ok go get your valves adjusted cause a misshift like that, especially in higher rpms, will mess the **** out of your valve clearences. Trust me

vietdragontekx

but with not align valves can cause the car not to start?

flyrod

sounds like bent valves.

mgags7

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by The Weather Man &raquo;</TD></TR><TR><TD CLASS="quote">A compression test won't do **** but tell you that you're losing compression.

A leak down test will set you free - listen to find out if its coming through the valves. Remove your intake to see if air is coming back through there. </TD></TR></TABLE>

true but the findings will indicate whether the head needs to come off or not, if it does, it will be obvious then....

limpmode

How fast were you going when you misshifted?
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by InvaderTrax &raquo;</TD></TR><TR><TD CLASS="quote">There's only a .003462% chance you bent a valve by mis-shifting. Does it crank normally? Or is it slow? Do you hear any grinding noises or anything?</TD></TR></TABLE>
Given your circumstances i would say you have more like a 98% chance of bent valves.

Do a comp check first, then a leakdown. If comp #'s check out ok (which i bet you $$ they will not) then a leakdown is not really necessary.

vietdragontekx

did a compression test, three cylinder is all low like at 75. guess it time to change my valve train. hope my tranny and block is not mess up

JDMF22B

holy messed up head batman. How fast were u going when u shifted? were u redlined in 3rd and then down shifted? I remember once I was in 5th at like 60 and dropped it into 2nd instead of 4th, rpms jumped up, but i threw it in neutral pretty damn fast. There was a little valve chatter, post misshift, but nothing life threatening. I got off easy

vietdragontekx

i was around 7.8 k when i mishifted and go to second instead of fourth.

vietdragontekx

ok guy here the real compression test result. 75, 10,0, 75 the third one look bad. i think the valve fall off. hope it didn't mess up my block. dont want to get a new engine . any idea guys?

97Preludeguy

Your pistons are probably fucked as well. Less talking, more taring down, it's the only way you'll find out whats really wrong

black06lude

it will start but have a ruff idle

94Vtecluder

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vietdragontekx &raquo;</TD></TR><TR><TD CLASS="quote">i was around 7.8 k when i mishifted and go to second instead of fourth.</TD></TR></TABLE>

Damn you rev'ed that really high, that was your first mistake imho. Most H22's will peak at ~7200rpms.

AndyD

iTrader: (1)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94Vtecluder &raquo;</TD></TR><TR><TD CLASS="quote">

Damn you rev'ed that really high, that was your first mistake imho. Most H22's will peak at ~7200rpms.</TD></TR></TABLE>

I don't feel sorry for this guy.