Noisy top end when warm

[nickwrxstiv2]

Hi guys, only had my clio a few days! haven't driven it much!

It's a ph2 172 with 80k on the clock. I bought it with a few problems that need fixing. Got it cheap so it's not too bad!

Anyway, when cold the car runs sweet apart from a lumoy tickover. When warm, it's a different story! It's like a diesel. I've read a few threads and I'm still stumped :S

I'm sure it's the dephaser but would like a few opinions on it before I stump up the money for a new one. Had the car up my mechanics the other day. He took the lefthand engine mount off to reveal the dephaser. I thought the noise was coming from there but he thought it was in the middle of inlet manifold. I was looking at the dephaser and it looked as though it wasn't spinning perfectly, almost as though it was spinning off it's axis. Is this what happens when they are knackered?

Please help!!!

 

[Martin_172]

really need a video to confirm it, mine isnt the quietest, does it feel ok when its running? power wise and vibration etc?

 

[nickwrxstiv2]

I'll go and get a vid now!

Give me 5-10 minutes!

 

[nickwrxstiv2]

Here's a pic of the engine bay. It sounds like the noise is coming from the centre of the engine. Not coming from dephaser at all.

There's also a strange buzzing noise coming from the engine bay when the ignition is turned on. Is that normal? Also, one of the backs of the headlight is making a clicking noise! Bloody French electrics!!!

Here's a video of the buzzing -

http://www.youtube.com/watch?v=rH9hXMppnR4

Here's a video of the idling at cold -

(STIL UPLOADING!)

Here's a video of the engine after a short drive and idle totalling about 10 minutes. Totally different. Noise deffo coming from centre of engine -

http://www.youtube.com/watch?v=O9EoFPW0ALQ

What do you reckon?

 

[Martin_172]

buzzing sounds like the xenon headlights, or atleast mine make that noise, or similar, does it do it when the headlights are off?

as for idling noise, mine doesnt sound that loud, theres a lot of different things it could be, try putting a screwdriver on different parts and listning with your ear against the screwdriver see if you can pinpoint it

 

[lemonnobby]

Fred on here had one of these noises. hes a renault specailist and he could even figure it out. his noise was like yours and it comes from the inlet manifold area

 

[lemonnobby]

heres a link to it http://www.cliosport.net/forum/showthread.php?t=348872

 

[nickwrxstiv2]

heres a link to it http://www.cliosport.net/forum/showthread.php?t=348872

Thanks for the link, I've read through it and posted to see any progress.

Mine only does it when warm though. beginning to suspect the wrong oil has been used and that's why it's OK when cold, i.e. the oil is still thick.

Might try an oil and filter change ASAP.

What oil and grade is recommended?

 

[caister]

Has it been serviced correctly and had the cambelt/auxbelt done?

 

[nickwrxstiv2]

Has it been serviced correctly and had the cambelt/auxbelt done?

As far as I know, yes, it's been serviced properly. I think it may be overdue a service so I'm hoping new oil of the correct grade will clear the problem. Cam and aux done 30k ago at the 50k service.

 

[tooley]

my clio does exactly the same when cold its fine when it heats up it sounds like a diesel power is fine just noisy. i had an engine flush and then had correct oil put in fully synthetic about 60-70 quid a gallon and it still does it sounds like its coming from centre of head when i listen down a screwdriver. renault didnt have a clue and were going to charge 700 just to take rocker off and on a new head from k-tec seems like a good idea 600 quid at that price

 

[nickwrxstiv2]

I'm going to my local motor factors on the way home to get some fully synth oil and filter. Also getting some hydraulic tappet flush to put through the engine. I'll post my results up later.

Will the noise do any damage tomy engine, or should I just run it like that?

 

[tooley]

i have spoken to a guy at ktec racing and he seems to think that the noise could be coming from a linkage at the end of a con rod and reverbing up so that it sounds like it is coming from the head. they have one in at the moment that they are going to dismantle but not for a couple of weeks im going to speak to him again in the near future to find out what the cause is so unfortunately the repair could be quite expensive

 

[nickwrxstiv2]

i have spoken to a guy at ktec racing and he seems to think that the noise could be coming from a linkage at the end of a con rod and reverbing up so that it sounds like it is coming from the head. they have one in at the moment that they are going to dismantle but not for a couple of weeks im going to speak to him again in the near future to find out what the cause is so unfortunately the repair could be quite expensive

mmm, interesting.

Well, I've changed tthe oil to 5-40 fully synthetic, also added a hydraulic tappet cleaner. Only driven about 5 miles but there is no change! If I rev it to 2k or over the noise goes away! Very strange!

Anybody care to comment?

 

[nickwrxstiv2]

Just dropped the car off at my mechanics. He seems to think it's low oil pressure and therefore the tappets aren't getting a good/constant supply of oil.

I'll post up my results.

 

[DaveLiquid182]

The buzzing you are describing sounds like the buzzing i have heard from the throttle body on mine. My ph2 172 did it as well.

Oops just noticed your you tube link. That deffo sounds like the noise from throttle body.

 

[nickwrxstiv2]

The buzzing you are describing sounds like the buzzing i have heard from the throttle body on mine. My ph2 172 did it as well.

Oops just noticed your you tube link. That deffo sounds like the noise from throttle body.

Is it normal?

 

[len_beach]

The buzzing you are describing sounds like the buzzing i have heard from the throttle body on mine. My ph2 172 did it as well.

Oops just noticed your you tube link. That deffo sounds like the noise from throttle body.

Is it normal?

Mine does this and has done ever since I've had it. No issues with it.

The knocking sounds more ominous.

Also sounds like a roller is worn or the power steering pump is on its last legs as there appears to be a whirring which rises with rev's.

 

[Jimmybs]

not to put a massive downer on things but mine sounded exactly like yours and was performing ok still but when revs it sounded ok but when idleing sounded like a diesel!Basically i took engine apart with mechanic and we checked everything, i mean everything, basically, my oil was like sludge and the cams had all been worn away and basically just fu**kked! He recommended a top engine rebuild but instead i jst got a brand new refurb engine which was very costly but now is the fastest thing in the west lol! I spent hours and so much money trying to work out wht he was but that diesel sounds is identical to mine!

It may no be though so get it checked out but just keep it in mind!

Hope its summit simple!
Good Luck!

 

[cwmitch]

Just my two bob but have you checked the Alternator
for a collapsed bearing? Sounds silly I know but mine
sounded like a bag of spanners and it was the Alternator
got to be worth sticking a screwdriver on it to see..

 

[DaveLiquid182]

The buzzing you are describing sounds like the buzzing i have heard from the throttle body on mine. My ph2 172 did it as well.

Oops just noticed your you tube link. That deffo sounds like the noise from throttle body.

Is it normal?

Yes that is normal.

 

[nickwrxstiv2]

Just my two bob but have you checked the Alternator
for a collapsed bearing? Sounds silly I know but mine
sounded like a bag of spanners and it was the Alternator
got to be worth sticking a screwdriver on it to see..

Thanks,

I'll try that. The alternator is at the left of the bay isn't it? The sound is deffo coming from the centre of the block. I'll post my results up when I hear back from my mechanic.