Ahhhlee

Hi everyone,

[Vehicle: 93 honda civic si h/b]

oil kept bleeding out and around my valve cover...so i went and installed a new valve cover gasket and spark plug seals (o-rings internal).

So after install and clean up, double check everything reconected and proper etc. let it sit for an hour to let silicone skin over.

then started it up and allowed it to reach normal opperating temparature. so far so good. then took it for a spin, pulled over and checked again, still good, then started to open it up - Max rpm 4500-5000.

Crud started hearing severe rattling. came home, in nutral slowly reved it up, and the horrible rattling occurred at 3200 & 3800 & 4200 rpm.

so im thinking, doh, didnt tighten valve cover bolts enough, cheked em an their nice and snug. (not too tight)

So this is where i now need the help, what the hell is that noise. My motor never ever made a noise b4 i decided to install the new valve cover gasket, if any one could help me (info), I would greatly appreciate it.

ps: - could it be torque down pattern, 5 bolts altogether, is there a specific pattern you are suppose to tighten it down, i was told that didtnt matter.

-----could it be a possible exhuast leak from center pipe(1year old) or my ageing catylitic converter(15 year old).

Ahhhlee

?

Ayeso

sounds like you dropped something in your valve cover

BlackDeuceCoupe

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

Er...

Take it apart - SEE what's going on - and tell 'us'!

2wheelhunter

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ayeso &raquo;</TD></TR><TR><TD CLASS="quote">sounds like you dropped something in your valve cover </TD></TR></TABLE>


thats exactly what i was thinking

turbojdmhatch

the ball bearings in ur cat conveter could have rattled loose and that might be whats rattling around in there

2wheelhunter

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turbojdmhatch &raquo;</TD></TR><TR><TD CLASS="quote">the ball bearings in ur cat conveter could have rattled loose and that might be whats rattling around in there</TD></TR></TABLE>

thats probably all it is..
those damn muffler bearings again

Ahhhlee

nuthin could have fallen into my motor, otherwise noise(rattling) would be constant.

hopefully just coinsidental exhaust leak...(sounds too good to be true though)

gonna inspect cat-conv and check back...

thanks for the replies and info

turbojdmhatch

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ahhhlee &raquo;</TD></TR><TR><TD CLASS="quote">nuthin could have fallen into my motor, otherwise noise(rattling) would be constant.

hopefully just coinsidental exhaust leak...(sounds too good to be true though)

gonna inspect cat-conv and check back...

thanks for the replies and info

</TD></TR></TABLE>

so adding a new VC gasket is gonna make it so ur conveter go bad all of a sudden or make an exhaust leak???? it just doesnt make any sense just take the VC back off go through it slowly look around for any thing that looks like it shouldnt be there and get back to us Ahhhlee

Ahhhlee

thats what i thought..."doesn't make any sense"

so i did pull off valve cover and double check everythin. Unfotunately everthin is a-ok inside motor and rattling still occurs @ 3200,3800, and 4200 rpms'

gonna have it checked out this weekend, will get back with cause & solution.

appreciate the info/help

blindguy

you did something wrong. not a common problem so open it up and see what you foiced up on lol

Former User

Try to localize the noise and report back.

BlackDeuceCoupe

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RonJ@HT &raquo;</TD></TR><TR><TD CLASS="quote">Try to localize the noise and report back.</TD></TR></TABLE>


Personally, I'm voting for the 'bad muffler bearings'...