strange metallic chi chi chi chi rattle on acceleration

Ok ive had a look back at previous posts using the search bar and cant find any what mention what im experiencing

Right when i accelerate im getting the very very faint rattle(like a well oiled chain would sound) when i lift off the sound go's away. Now this isnt some sort of heat shield rattle or a noisy tappets sound like a biro being bashed on a table,just a very faint timed rattle under load.

the only way i can describe it is like if you were to put your tongue on your front upper teeth breath fast in and make chi chi chi sound

now ive never had a golf before and im not sure if this is just a quirk of the engine or wether something need sorting

HELP !

 

Vac leak? Vid with decent sound would help

 

The problem is you have to be driving it. and its so quiet i dont even think the video would pick it up.

the car runs fine btw.

 

could be wheel bearing,cv, driveshaft, belts, engine, if the noise increases speed with the speed of the car

 

Had another poke about and it sounds like it's coming from behind the inlet manifold....any ideas?

1997 Mk3 gti(8v)

 

not pinking then? sounds like ball bearings rattling about under load

 

I was just about to mention pinking, hehe

 

Took it to the local volks centre and they say they think its the exhaust manifold gasket leaking, as one of the engine mounts are shot as the engine can be rocked my hand !

 

Failing that, could be your big ends going?

My engine rattles like a bugger at higher revs. Been told it's quite common in the 1800 8v engines.

 

How may people tried to make the sound with your mouth following the instructions?

I did....

 

Still looking, still wondering, dam annoying sound. i say its prob pinking, but they say the 8v engines cant be timed. i have gave it the best service its prob ever had and also fitted a new exhaust system.And yet this noise still torments me.

Oh and changed all 3 engine mounts.I just find it so strange that i cant simulate this noise when stationary no matter how hard i rev it

I only ever get it under load when driving, very faint when very very light throttle and increases to max noise when you floor it (no matter what gear) and stays at that level right the way through to the red

 

Not me

 

if it happens when revved in neutral it could be the belt rubbing against the cover or maybe even a worn damper pulley. Just a couple of things Ive experienced in the past.

 

Does the frequency of the noise increase with engine RPM, or with road speed?

 

deffo not a belt mate, only ever when the wheels are turning and most inportantly when its under load, off throttle there is no noise.

no only ever quiet if light throttle and louder if more throttle

 

could be a wheel bearing/cv joint, see if the noise tallys up with road speed, or with the engine speed

 

ok bit of an update

Noticed it doesn't do it on 1st gear ever if you drive it right up to 5000rpm, weird.

when i start the car im noticing the revs don't go over 1000rpm when cold and sometimes its struggling to stay idle ,should it not rev a bit higher on cold start ???

also noticed that there is a bit of popping coming from the exhaust when its blipped,could it be over fuelling? what would cause this ?

can i also state that this noise is 100% only under load not when revved parked up, and is definitely engine associated

 

nope

 

Its worth getting the static and ignition timing checked.