brian1570

ok so i have a bad valve on my #1 cylinder. i really dont know whats wrong with it....so this weekend i'm gonna pull the valve cover and see if i can identify the problem. its really confusing to me, it only fvcks up under WOT, and when it does it feels like its missin. it also looses compression, i think it dropped to like 50psi the first time. but then...u rev it up for a few minutes and its fine...compression restores and everything. WTF? ok so i'm probly gonna have to pull my head eventually. i know u guys have some good websites that can show me how, ive seen the links in posts before but can't find those posts again. ide really apreciate a link. thanks in advance.

brian1570

anybody???

72MachOne99GT

I pulled my head with a haynes manual, and some patience

Not that hard.

Just group ALL the things you take off, and even label them.

I put them together, but did not label that well. Might take a while to get the timing chain cover back together with everything attached right. lol

brian1570

sweet, well i keep hearing about haynes manuals but all i ever find r chiltons manuals. which is better? i had a chiltons for my subaru but never actualy had to use it seeing as how i blew the motor and sold itafter having it not even a year then my thunderbird was easy enough to work on i didnt need a manual, but uh i didnt ever have to tear the motor apart ether...

72MachOne99GT

dont know which is better...

it was ncie to have someone who's done it before help me along part of the way, but even w/o help, im pretty sure there is nothing that someone with some common sense, and PATIENCE can't accomplish on their own

jojo2003

How did you know that it was a bad cylinder causing it to misfire at WOT? My is doing the same thing. What do I need to check?

dimebag

im thinking... bent valve, cra,cked valve, or possibly valve float

either way the head ought to be comming off and dissasembled

brian1570

i did a compression check, if u dont havea comp gageur mechanic will. and it only happens at WOT(sometimes), but im not positive it was misfiring but it sure did feel like it.

brian1570

yeah i keep hearing bent valve when i talk to people about it...but how the bloody h3ll do u bend a valve? i have never heard of som1 bending a valve on an n/a stock motor street beater...not questioning ur knowledge or anything it just strikes me as kinda odd. my pops suggested that it might be a valve sticking, but nether one of us r too familar w/ ohc motors soooo....not even sure thats a possibility.