KodSol

Okay, so i started my del sol d16z6 and heard a metal on metal grind which i thought was from the under the car, maybe from the exhaust hangers. disregarded it until i started driving down the road. get to about 3000 rpm and the noise gets louder. pull from a stop sign and starts to feel as if I lost a cylinder, but didn't sound any different. Pulled to the side of the road after it dies on me. Now i start thinking. start the car back up, grinding noise is louder and realized its not the cylinder. as i get towed, started the motor with my dad listening to the engine bay. he said the noise was coming from under the valve cover. Valve, valve spring, rocker arm....? No idea. Get home after work and take the valve cover off. Don't see anything out of the ordinary. Best idea to pull the head off? i haven't gotten this far into my motor before, so i don't want to be F'ing **** up. I somewhat understand how to take it all apart and put it back together, but just want to make sure its done right. Anything to do after taking the valve cover and then pulling the head? anything that I will need to take off prior or will everything stay together to look at the valves? Thanks HT, i appreciate all the help. I WILL be as careful and particular as POSSIBLE! Want this is be fixed the right way.

morbius18

You should do a leakdown test to try to find which cylinder it is. You could have dropped a valve, broken a valve seat or sucked something into one of you cylinders. You could also remove the exhaust manifold and intake manifold to check the valves before tearing it down, but you are probably going to have to do it anyway.

KodSol

thats what my dad was saying. take off the exhaust manifold. thanks. doing it tomorrow

Silvertune

Pull the valve cover and start it. Look for the problem while it's happening.

Hondarific

Sounds like a broke valve that went through your motor, exact thing happened to me when I had a b16 eg hatch.. Except when my car died, I couldn't get it restarted.

morbius18

Have you ever pulled a valve cover while the motor is running? How did that work out for you?

furious94ls

Seriously? lol

Pull the intake/exhaust manifold, take a better look at the head with the valve cover off. Pull the plugs and manually turn the engine over and look to see if anything is out of place, or not doing what it's suppose to. You may even get the sound it was making to an extent. Might as well inspect the valve lash as it may have become extremely loose.

KodSol

I pulled off the valve cover already and pulled the plugs. turned it over..all the valves/rocker arm/springs moving as they should. nothing looked out of place. im going to be taking off the intake/exhaust manifold to see what I can find. Haven't heard the sound at all. only time i heard it was when i had the motor past 2500rpm or so. so i haven't heard it since i took the valve cover off. ill update once i see with the intake and exhaust manifold off. thanks guys

strategy400

Could be a bolt backed out somewhere and was rubbing (clutch/torque plate, timing cover) then snapped off or wore through..
Don't start jumping to conclusions and doing an unecessary tear-down..
Just worked on a car with a scraping/knocking noise coming from the engine. Got my stethascope and narrowed it down to the alternator/bracket. Went to remove the alternator and found out the main pivot mount bolt that holds the alternator on was missing. Only thing holding it on was the adjustment bolt and belt tension. $7 and a trip to the Honda dealer and it purrs like a kitten again.

Hidenplanvew

check your pullies

KodSol

compression is good on all cylinders. put everything back together..started it up..didn't die. the knocking noise is RIGHT under the valve cover..almost sounds like its hitting the valve cover..between cylinder 2 and 3..right in the middle. pulled the valve cover off again and looked under it..no marks that would indicate knocking against the valve cover. thats where the noise is coming from..can feel it right under the valve cover. confused. its definitely a knocking now..not a grinding. the motor was a little low on oil..no oil light, could that have made grinding/screeching? filled up and no screech..now just the knocking.

KodSol

and its not stalling out either now. which it was doing when this problem first started.

strategy400

Is it louder under load?

KodSol

no..same knocking noise the whole time. just faster or slower with rpm.

furious94ls

Can you hear it under the car as well? Hopefully it's not a rod/spun bearing. I'm thinking the valve may be damaged if it's not a low end problem.

jbpnoman

Do us all a favor, buy or make an engine stethoscope, and steth the motor to figure out EXACTLY where the ticking is coming from.

raverx3m

iTrader: (1)

take your valve cover off
pull the ecu fuse and disconnec the distributor plugs

crank the motor with valve cover off you should see if something is loose

Silvertune

Yes I have an it worked out fine.

KodSol

If you read what I wrote..it's coming from under the valve cover. And it's not a tick, it's a LOT louder than than.

KodSol

I have cranked it with the cover off..didn't see anything out of the ordinary. Everything was running as it should.

jbpnoman

You're either full of crap, or you've never done it on a Honda motor.

morbius18

Or you enjoy being oil coated

crawfo661

^^^^^!

Hidenplanvew

I remember something about this before but damn I cant remember I think it was on dseries forum

jbpnoman

Or that.

For anyone out there that doesn't know what we're talking about, the next time you're bored, go pick up a couple quarts of oil. When you get back home, open your hood fully (use the lower prop point, not the main prop point), take off the oil cap, and start the car. Get ready for black fireworks.