Help with whats wrong with engine.....
 

Hey guys I need yer help on this. I seen this ad on craigslist about them needing a mech to fig out what was wrong with his car. I emailed him and got a video of the engine running. I will post the ad that he put on craigslist to help too. Here is the video of the engine running. I think the timing jumped a tooth or 2. Let me know whatcha guys think.
I posted a new video down below that is much better in quality. You can really hear the knocking and tapping.

http://www.youtube.com/watch?v=fvfDvoELsOQ

Here is the ad he put on craigslist....

http://fresno.craigslist.org/cto/1335414472.html

could be valves hitting pistons, jumped time. hard to tell , the sound recording isn't that good

Sorry he said the he was going to try and get it on video cam.

Sounds like there's more than one knock on that engine. If you're thinking about buying it, I'd stay clear.

Sounds like some valve clatter, along with a rod knocking. Just because he pulled the pan doesn't mean it's not a rod.

No Im not trying to buy it. The guy is just trying to get it runnig good again.

Ok here is a lot better video of it.

http://www.youtube.com/watch?v=9RLnqb2NN48

could be the flywheel broke or the harmonic blancer also dose it have oil pressure.If not the oil pickup could be clogged.

But I would stay clear just incase somthing flys off. :lol:

the next sound coming from that engine will be BOOM!! :shock: :shock:

So is that a good thing or not a good thing?

well it will be put out of its misery. if it was a horse it would have to be shot :shock:

sound's like either a camshaft lobe gone and hyd lifter is trying to compensate, or bottom out of lifter. But what the Hell do i know i am a ''Mopar man'' :!: :!: :!:


''JUST MY TWO CENT'S WORTH''

after hearing the second recording i would agree with mopar :wink:

It's definitely a clunker.

tell him to pull the valve cover

Sounds like no oil pressure and the lifter collapsed and a torn rod bearing on that cylinder

First video sounds like a rod knock and broke piston

OK update.....
he has oil pressure. Ok i will have him pull the valve cover. What should he look for under there.

Also what would you suggest be done.

I agree. I would have put it down. Then gotten a new horse. LOL

run it with out the valve cover and video it.

this could get fun.

Hey i resemble that Remark..i did run them in the past with Open valve covers when adjusting Hydraulic lifters...then i got smart and cut the center out of old valve covers...lot less messy...

Stay away from the engine D....Too many out there to choose from

OK tomorrow he is going to video the engine running with the valve cover off. That way you can get an inside look at it.

Don't mean to disagree with anyone but if you listen close it comes and goes sign of lifter trying to pump up but can't enough to keep valve open :!: :!: But what do i know i like ''MOPARS'' :?: :?:



''JUST MY TWO CENT'S WORTH''

Mopar we both love you anyways so stop being a brat.... we dont' think you are stupid just was giving you a hard time....Geesh!

Dirkas real expertise is body stuff, he holds his own on engines and trannys for sure, he just wants to help this guy get it running.... and the guys run outta people to ask and Im sure money....

ok mopar we dont love you, we don't know you but the nicest way i can put this is simple.... stop being a big puss.... grow up.... you sound like a whiner EVERY TIME you say im just a mopar guy blah blah blah sorry i had to,,,, im not good keeping things to myself

just fyi, i might tell ya the make and model of the engine and whatnot
its an 88 chevy cavalier 2.0l TBI OHV engine and i'd like to thank dirka for helping me out with this, i know my way around an engine mostly, i mainly work on my ford explorer truck, this is a friends car and im stuck takeing him to and from work, and im at a loss to find out what makes the noise
i have checked the rods and pistons by pulling off the oil pan, wich wasnt fun, the rods are in one peice the bearings have a very slight give to it but not enough to make the noise it makes, the noise comes from the middle to upper engine
so if anyone knows anything about the kind of engine i have, that would be great hence why i tell what kind of engine i have
im trying to keep it running just for a short while, why my friend saves up for another car, and i would do cash for clunkers or even junk it for money, but i dont have the title beacuse we were bought it......and we didnt know we had to have it smoged befor we paid for it, i live in cali
so laws are funny

Piston pins

here is the vid with the valve cover off i didnt notice anything wrong other then the noise, and the smoke was beacuse some of the oil was getting on the outside of the engine and burning

http://www.youtube.com/watch?v=Et0nayygnR4

It kinda looks like there might be something with the #1 cylinder. From what I could see of it I kinda noticed some jumping on the rocker arm for the exhaust valve. But It could be just my eyes too.

would it tell you guys anything if i did a compression check on each cyl? a friend gave me a checker and just told me to pull one of the sparks, turn it on and stick the thing in where the spark was

Yes it might. But you want ot make sure to disconnect the coil first. That way it will only crank but not start.

ok i have to say i have no idea how to do that lol

Also what the tips of the plugs look like. Are they bent, broken, things like that.

Its ok. I watched the video again for the 3rd time and I watched it really close and what i said bout the rocker arm jumping i was wrong.


With that said. If you follow the spark plug wires back to the distributor cap there should be an extra wire on there. Pull off the extra wire. That wire goes to your coil. It wont fire off with the wire pulled.


How tight were the rods to the crank. Was there any play at all between the rod and crank?

the number 1 piston has some slight up and down play, very slight, and i think the rd one has alittle side to side, like i said very slight, it didnt look like the bearings were gone or anything like that, and with the coil, little more difficult, as its a pack and not a cap, and getting back there is near impossable, i made the mistake of pulling off all the spark plug wires at one time, it was NOT fun

I believe you might have just solved it. I believe that there is supposed to be no play in the rod to crank connection. Just the slightest can ruin a motor. Now this is just my opinion i say we see what the others think.

well thats what i very first thought, but it wouldnt explain the intermittent noise plus the noise comes from the top of the engine
i would have replaced the rod bearings when i had the oil pan down, but i couldnt for the life of me figure out what kind of nut was on the damn rods, i mean it was weird looking, almost looked like a gear, so i couldnt figure out how to take them off for shit

See with that play in the rod it could be slapping the the bottom of the head,valves making the noise on the top end of the motor.

like said before, when the rod is loose, that means excessive clearance, so there is no oil pressure on that journal anymore, so then the cam and lifter are not getting oil up top of that rod either... which makes all the knock,knock and rattle your hearing

i just cant imagine if its the rod bearings it would make that crazy intermittent banging, i mean sometimes it goes completly away for a few seconds

yes the oil pressure goes away... and the hydaulic lifter collapses making the rocker and valve rattle