Engine=bad nosie

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curtis

curtis

Ex. Club Member
got back from college yesterday and the car was not sounding great....

1. my exhaust manifold has a hole in it......sorting that soon

2. sounds like there is scraping going on in the head or rocker cover?

its like a rubbing sound of metal....which isn't good!:doh:
i've checked the oil, and ill have the rocker cover off tonight, but does anyone know what this might be?

thanks in advance

Curtis.
 
could be anything, cam or cam bearings or timing chain best just take it off and have a look lol

u sure its not just the timing chain you can hear?
 
no this nosie isn't normal....apart from the tapping the car was running fine in the morning....then it sounds like the metal grinding against each other on every tick over.....not good :(
 
check all the bolts holding down the rocker arms are tight,.
 
just driven it again (on my lunch break) and its not good! sounds like its coming from the head or bottom of the rocker cover...sounds like a really rusty wheels (squeek) turning around...
 
curtis

cut 2 feet off your garden hose, put one end in your ear and move the other end around the cambelt area or alternator.
 
thanks frank, but my mum doesn't want me to cut up the hose lol...(i was stood over it with scissors in my hand! :p)

i just drove home and the performance is fine...but the noise continues....

All i have changed lately are: Re-connected the idle control system and put a tiny bit of redex in the tank!
 
rlees85 said:
could be anything, cam or cam bearings or timing chain best just take it off and have a look lol

u sure its not just the timing chain you can hear?
Click to expand...

that'll teach me for not reading which section its in... :blush: sorry lol
 
...Screwdriver....

Loose Belts squeal...but if something is not Lubricated when it's supposed to be that will also make a squealing noise....does the noise go away when parked up?

What else moves...water pump?

...????....:doh:
 
had the rocker cover off.....cleaned and put back on tightly....
when parked noise is still there.

sounds like liquid being pushed through something at pressure?? not sure though....coming from around the top of the head and by the cam belt?
 
yes did that and that too fordy, when the car is rev-ing/driving along, its fine, but on idle its still there.
 
could be the cam bearing faces rubbing ad causing friction, squeeling, due to lack of oil on that face, much like my cam did..lol
 
Remove the alternator belt then try again.
 
Clean the Pulleys with sandpaper..... :)

Franks suggestion about the Tensioner Bearing maybe?

Sound travels....when i first heard my Alternator Bearings clattering i thought it was at the back of the Engine....the Tensioner is in close proximity to the Head....have you got a sound clip at all...can you do it on your Mobile maybe?
 
It wont be anything to do with sanding pullies.

You have to approach this with a simple bit of problem elimination.

First of all disconnect all external drive pullies to things like alternator then try agian. I suspect the problem willl go away.
 
Thought he'd wanna sand the pulleys whilst he was there....another job out of the way so to speak.....helps cure squeaks on Belts :)
 
well i did what ED said about taking off the alternator belt and the noise was still there, i put some more WD40 on the bottom timer pulley and the noise got quiter......

i remembered the other day that my screen washer bottle top had fallen off on my way to birmingham, it went everywhere round that area so in theory it should have rusted over night? could that have been the cause?

thanks for all the help guys! (Y)
 
Im guessing yes!

If the pulley bearings have rusted up they will, better off penatrating oil around each of the pulleys, tensioners etc!

First of all the noise will still be there as it will need to run to loosen up, but should then become more free, thus stop scraping!

Right at the begining when reading i personally thought it was the water pump drying up! but someone mentioned it so never bothered saying any thing!

Just out of curiousity, i know you say the noise is coming from the head, but have you made sure the drive shaft is not catching any thing?

Does the scraping increase under revs? does it stay constant? things like this will tell you if it increases with revs then it is a moving "speed" part.

Which as Ed said will be a process of elimination, once you can determine the old - WHAT, WHEN, WERE stuff you can instantly remove some items.

Quick question, i know there is loads but you seem to be having issues!

Have you jacked the front end up so front wheels are off the floor and then let it idle? does it still scrape? have you slid yourself under the car whilst its in the air to look around?

Things like this may catch your eye on something i.e. drivechaft or even just a second angle view on pulleys etc

Wayne

P.S. This might sound stupid but, You do have gearbox oil in dont ya?

Cant remember if any one asked..
 
if its the cam belt tensioner, best change it before it breaks up and bends the valves
 
yes i jacked the car up....nothing there that i could see....drive shafts looked fine, but i did notice on of the rubber seals has spilt slightly, will get this changed soon....

when the revs pick up, or when driving around the nosie is not longer present, maybe becuase i cannot hear it but i'm pretty sure it goes away....its only on idle and i think i found that the pully had just slightly rusted due to the screen wash spilling all over it.

Drove to work this morning and its only just still there so i think a coat of oil and more WD40 should cure the problem....

thanks
 
curtis said:
yes i jacked the car up....nothing there that i could see....drive shafts looked fine, but i did notice on of the rubber seals has spilt slightly, will get this changed soon....

thanks
Click to expand...

CV boot mate!

Will have lost all the grease out of it and will be slipping in the cage! when you get up to speed itll be less obvious due to the velocity in which its turning.

This could also be the same for the pulleys though!

So without hearing or seeing the car, nobody will be able to tell you exactly what it is!
 
But the CV boot wouldn't be turning on idle surely? i'm not to sure though, but it would only move when a gear is engaged wouldn't it?
 
curtis said:
But the CV boot wouldn't be turning on idle surely? i'm not to sure though, but it would only move when a gear is engaged wouldn't it?
Click to expand...

Yes!

the gearbox has some drive to it even when not in gear etc! if the cv has split and has worn the bearing it will be slipping in the cage (wheel not moving, but the driveshaft/gearbox end will be rotating slightly!

but as i said it still could also be the pulleys :p

never know without seeing or hearing the car, personally id say the 2 noises were totally different, but without someone knowing the 2 they may not know the difference :p
 
nah its not the belt, its tight as....

I think the pully just rusted a bit overnight and now the wd40 seems to be braking it down so hopefully it will go in a matter of days
 
all the things you describe make it sound like the bottom pulley, i'd remove it grease it up again and put it back on should fix it ;)
 
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