97 2.2 engine running rough after timing chain change

[comet240]

ok so i stumped

i lined up the timing marks to the chain tensioner put the engine all back together, tried firing it up never started had to floor and took about a minute of turning over before she started

it runs but runs rough the engine light is flashing when i plug the obd code reader it in it says missfire twice

so what did i do wrong i lined it up and stuff

and i hear a tap in the vavle cover now just a 1 tap not like the lifters sound when no oil

[Tech II]

Double check the timing? Sure it's not off a tooth?

Check compression? Ignition wires going to the correct plugs?

[comet240]

i in middle of taking it apart again ugh

but my friend said it could be 180 degrees out? he told me to take it all part turn till they line up and then take chain off and then turn the crank 1 full turn and put back on

as he says its probably at BDC not TDC


but my book doesnt talk about it mattering like that

but im sure it lined up the teeth ill take a pic when i get it all done

[comet240]

so i got it all apart but when i turn crank shaft i guess doesnt matter everytime the time mark lines up the first cylinder but the alternator is at TDC

but trying to turn the cam shaft still frigin tight no matter what pos i put the crank shaft Dot the cam shaft is tight u turn a but more and it springs ahead two times i do that and then it sprints to the Timing mark

so whats wrong with this? could it have gotten damaged when it orginally broke on the road trying to t urn over engine?

or what is the issue or what can be done?

[comet240]

guess ill test compression later today when i put engine back together ugh

i was thinking if the valves got bent could it happen at moment when car broke down? like trying to start engine

[comet240]

ok here is some pics
tell me if i lined it up right as i wont put it back together till i know and not waste my time re ripping it apart

[comet240]

so say if from what i read on different forms the valves got damaged and these push rods cuz the timing chain broke and mom tried starting it

question is can the cam shaft be damage? if so i i shouldnt put timing cover on right? or is it safe to say i can put cover on and the oil pan etc

i just dont wanna tear it all apart again

[Tech II]

Marks look ok, with crank at 12 and cam at 6 o'clock......

Release tensioner and rotate crank two complete turns and the marks should align again.....

I would do a compression test......if ok, make sure the wires are coming off the coils correctly to the right cylinders...

so i got it all apart but when i turn crank shaft i guess doesnt matter everytime the time mark lines up the first cylinder but the alternator is at TDC

Alternator is at TDC? That makes no sense....

[comet240]

ok ill try that tommorow turning it sorry dislexia gets better of me i ment to say was that the first cylinder lines up at TDC

so if i still have poor compression

is that a bent valve or something else? ill try tommorow

what are the steps in that? as the hayes book doesnt talk about valves just the housing etc

[comet240]

oh and is the cam supposed to be hard to turn on its own? it goes easy for a bit then reachs a point and its hard to turn then u force it a bit more and then it jumps is that the springs in the under the valve cover? or is that a bent valve

are you supposed to feel resistance turning then cam shaft?

[comet240]

i know yesterday i tried turning with the cam shaft with chain and i could turn it 2 times i think like full crank turns and then it would get stuck i couldnt turn it anymore and this is with all 4 spark plugs out all i did was start tightening the crank bolt what does that mean?

i thinking it got damaged when it broke when my mom was driving car and chain snapped then

[comet240]

ok i stummped you say the Crank at 12 and the cam at 6 o clock

they dont line up that way when i turn the crank makes it to 12 and the Cam is also at 12 you crank it around more and then the lines line back up

so is that 180 degrees out?

if so what do i do

[comet240]

is the a special tool
as i trying to set the Cam shaft to 6o clock but you cant thats where the pressure is i set it there but using air gun to get the nut off spring loads it back to the timing mark on the chain tensioner

is there a way to lock it or what is the steps as i can only get 12 o'clock for both gears

[comet240]

so i confused the hayes book doesnt say about 12 and 6 o'clock

just about lining up the marks to the tesnioner

but when i set the Crank to 12 o clock on the cam i get like 5:30 and 10: 30 11:30 ish but not 6 o clock or 12 o clock dead on

when the cam is set at 6 o'clock the crank shaft is like 1 o'clock

but they do line up on the tensioner notchs
so whats reall wrong?

and i guessing it cant be a 180 degrees out of time since the timing marks line up at the 2 notchs yet they dont line up for the 6 and 12 mark settings

[aleekat]

I'm not sure if you engine is interference or non-interference. If interference, then when the chain broke, you probably bent some valves. Worst case, punched a hole in a piston head.