Funny engine noise from my 172 cup

[Tuomy]

Hey guys, bit of advise please. My 172 cup has developed a strange sound when it runs, only way I can describe is it's like a diesel engine sound when the engine is in gear and running on low revs and gentle acceleration. If you accelerate hard the sounds goes because of the deep engine noise. The noise has only come on recently and it was serviced by a renault dealer only 2 months before! I changed the brake pads myself last week but it definetly sounds like engine noise, I also checked the oil and that seems fine. I know it's a bit vague the description but any ideas welcome, as I want it fixed quick! The car is totally renault standard, no mods.

Help!

 

[172Ben]

Dephaser?

Check out my engine is fucked thread. There is a vid in there

 

[Tuomy]

That sounds pretty close to the sound, need to check it out. Is it easy to fix and what's the cost if it is?

 

[ducman]

Dephaser pulley = roughly £130
And then same labour as a timing belt change which u should do at the same time.
Hope that helps
Dave

 

[Cookson]

Where are you located?

Best off finding one of the guys on here to swap tyhe pully and do you a cambelt kit at the same time.

Fred
Birchdown
NWPerformance

 

[Tuomy]

I'm in Milton Keynes, The cambelt was changed the service before so it would have done max 20,000 miles so life seems very short! Frustrations of not having enormous amounts of mechanical knowledge... is my problem most likely something that will have to go into a garage for?

 

[Tuomy]

The engine has only done 64000 miles in total, the miles at 35000 to 50000 miles were drive by an old lady who didn't even know the car was a sport!! That's when the cambelt was changed and I bought it off her about 2 months after it had been serviced. Then the miles up to know have been by me.

 

[Cookson]

Its not part of the cambelt change kit, unfortunately. A lot of dephasers have been failing lately.

 

[Tuomy]

Ok so can I get away with just changing the dephaser or do I need to replace the cambelt again?

 

[172Ben]

Ideally you should replace all of them again - I think.

Heard people saying you should never retension belts...

 

[Cookson]

Ok so can I get away with just changing the dephaser or do I need to replace the cambelt again?

Cambelt again, deffo

You might want to consider just having the full kit done again, but best for one of the tuners to confirm

 

[Tuomy]

This sounds like it could get expensive, my last service and MOT came in 2 months ago at £600. Is there no way the renault service should have picked up the pulley going maybe? I know cars are sometimes just expensive lol really appreciate the help though guys thanks :approve:

 

[172Ben]

No way really, unless it was noisey

 

[Cookson]

Unfortunately, they dont seem to give any signs of going, they just "go". can still be driven AFAIK, they just sound like shite.

I am begining to think that the dephaser issue is derectly related to having a new belt fitted. Must be the new tension on it or sometthing.


However, you probably looking at losing another £500 for this.

Pully
Cambelt kit
Labour

 

[Tuomy]

Excellent news I can still drive it, not so good on the cost! Been driving it with real care up till now and need my car so was a bit nervous! I'm taking it to a independent clio centre this afternoon i'll let you know what they say. Frustrating is the word... love everything about the car and defo not letting it go anytime soon.

 

[danzman1991]

did they say what the problem may be?

 

[Fred@BTM]

cup = cheaper cambelt by a LONG way

 

[st3ve]

Just replace the dephaser and re-tension the belt ffs.

It's a matter of opinion that you should never re-tension one.

 

[nathy]

mate i have the same problem - recently had new cam and aux belt etc then started to notice this sound shortly after - have you sorted the prob???

 

[B6nst]

ive just had a cambelt and aux belt change an got it back this morning and it has a funny noise coming from the cambelt area its going back to renault on monday morning

 

[Fred@BTM]

Just replace the dephaser and re-tension the belt ffs.

It's a matter of opinion that you should never re-tension one.

its also 100% stupid

 

[SBV116]

Definately fit a new belt, for the cost of it, the tensioners will be fine after 20K imo! So cambelt, dephaser pulley and aux belt. Around £300 ish fred top of my head? maybe a tad over!

 

[Fred@BTM]

pass - i have a hangover

 

[SBV116]

Ha ha ha!