Engine noise

[Dominic172]

Just a question about the intake manifold,top half. When the cars warmed up it starts making a right noise, rattling away. Its definitely not the dephaser and I doubt its anything to do with the cams. Just want to know if this is common with the f4r or if there is a problem.

 

[Dominic172]

Also runs lumpy until properly warmed up, I hear a remap can sort this out. Any info on this would be a great help.

Cheers Dom

 

[MartinR]

Checked everything inlet wise is tight? also check the fuel rail guard.

 

[Dan@SJM]

Sounds like a diesel? Disappears after 1500rpm?

 

[Dominic172]

Checked everything inlet wise is tight? also check the fuel rail guard.

I thought that too, so I took it off and put it back on so I know its all right now, no inlet guard on mine either

 

[Silent_Scone]

How are you so sure it's not the dephaser? Because you really want to be hoping it is

 

[MartinR]

Video?

 

[Dominic172]

Sounds like a diesel? Disappears after 1500rpm?

Yeah it does do that now you mention it....

 

[Dominic172]

How are you so sure it's not the dephaser? Because you really want to be hoping it is

The dephaser has a little bit of noise bit nothing major, I've had the engine mount off before with it exposed and it sounded ok

 

[Dominic172]

I know it sounds daft me saying the inlet makes a noise but that's honestly where it comes from. I'm bewildered as to how it would make a noise as its basically just an empty chamber with the air passing through it lol.

 

[Dominic172]

Video?

I would if I could but on an old brick phone at the moment

 

[Dominic172]

Sounds like a diesel? Disappears after 1500rpm?

Also if I just flick the pedal just a little, it'll make a similar noise twice then go back to idling normally.

 

[Fred@BTM]

dephaser then

 

[Dominic172]

dephaser then

Yeah it is, pulled it apart again today and the dephasers worsened basically over night. Belt kit and dephaser now ordered. I have to timing kit for the f4r but never changed the dephaser, is there a special tool?

 

[Dominic172]

the*

 

[Dominic172]

cheers

 

[Mr R.]

Yeah it is, pulled it apart again today and the dephasers worsened basically over night. Belt kit and dephaser now ordered. I have to timing kit for the f4r but never changed the dephaser, is there a special tool?

Only the tool to lock the cam pulleys, un do the pulley cap then un do the nut and the dephaser comes off.

Make sure that the end of the cam and the new dephaser are 100% clean and oil free, i would also replace the cam oil seals and also use all new fixings.
Renault sell a kit which has the nuts and seals in and replace the crank pulley bolt.

 

[Dominic172]

Only the tool to lock the cam pulleys, un do the pulley cap then un do the nut and the dephaser comes off.

Make sure that the end of the cam and the new dephaser are 100% clean and oil free, i would also replace the cam oil seals and also use all new fixings.
Renault sell a kit which has the nuts and seals in and replace the crank pulley bolt.

Thank you for that, I'll give renault a ring first thing tomorrow for that kit. Hopefully the car will be sorted by next week

 

[Mr R.]

Its not expensive, i think the fixing kit with the seals is about £25 and the crank bolt is about £7 if i remember right.
Renault do state that when replacing the cam belt kit these parts must also be replaced.