rattle noise

Post Fri Aug 05, 2005 4:44 pm

as above.... when engine is cold in the morning, im driving along....... hit about 3000rmp and i can hear a rattle sound coming from the engine, hard to explain the noise people but its fooking annoying i know that much, alls i can say it sounds like is a dry vibrating rattle sound, almost as though the oil has got lost and gone for a swim, as soon as engine temp is up to half way no noise, engine oil has decided to come back, does anyone know what im onabout or do a just sound like a complete dickhead??? :lol:

please no snides i need to fix my baby

Post Fri Aug 05, 2005 9:20 pm

Is it coming from the bottom or top of engine. Can you hear it at all at idle?

Could it maybe be the oil pump, which when heats up stops making a noise?

Post Sat Aug 06, 2005 1:46 am

no noise at idle, just around 3000 to 4000 rpm untill shes heated up and then rattle goes??

Post Sat Aug 06, 2005 5:40 am

bets bet is to use a screwdriver to yer ear and listen if the noise is from top or bottom of engine, once you establish that it will be easier to diagnose the cause.

Post Sat Aug 06, 2005 11:23 pm

Try standing still in neutral and with the bonnet open, rev and hold the car at 3000RPM and see if that helps with the diagnosis of the noise location. Could even get a friend to hold the throttle at 3000RPM while you put you ear in various locations round the engine. BE DAMN CAREFUL OF THE FAN!!! especially if it has no cover.

Post Sun Aug 07, 2005 1:24 am

ill try that!!! good idea about lifting bonnet and holding throttle at 3000rmp didnt even think of that one

Post Sun Aug 07, 2005 1:32 am

Sounds like your oil spray bar, either clean it or replace it.

Post Sun Aug 07, 2005 2:08 pm

mine made the same noise,then i put my other alternator on and it stopped,until today! it started again,the only other thing it could be is a broken water pump,try running your car with the alternator belt off,if the noise stops you know its either the alternator or water pump,as the same belt runs both!

Tel

Post Sun Aug 07, 2005 5:33 pm

jonbuoy wrote:Sounds like your oil spray bar, either clean it or replace it.

i think you have hit the nail on the head there son, i really think its the oil bar myself but i just wanted to see if anyone could give me a diagnostic first, anyone know if they are easy or hard to change/clean??

Post Sun Aug 07, 2005 5:34 pm

telski789 wrote:mine made the same noise,then i put my other alternator on and it stopped,until today! it started again,the only other thing it could be is a broken water pump,try running your car with the alternator belt off,if the noise stops you know its either the alternator or water pump,as the same belt runs both!

Tel

brand new pump and altenator mate, cant be any of them, thanks for the info though

Post Sun Aug 07, 2005 6:08 pm

TW166Y wrote:
jonbuoy wrote:Sounds like your oil spray bar, either clean it or replace it.
i think you have hit the nail on the head there son, i really think its the oil bar myself but i just wanted to see if anyone could give me a diagnostic first, anyone know if they are easy or hard to change/clean??

It is not that hard, but don't bother cleaning it, just replace. They are so cheap anyway! It will mean having to take off the valve cover and from there just undoing the thread that holds the bar in place on either side of the head. Look for other damage to the valves, cam and tappets as a failing oil spray bar usually means oil starvation at the head!

Post Sun Aug 07, 2005 6:13 pm

nice one dude, will do