[alcopup]

Hi

Civic 2.2 06 plate

hoping you guys can help or point me to a good Honda tech - I have a metallic grating/rattling sound from the engine - its there slightly under idle - you hear it at its clearest when driving the engine reasonably hard and either quickly take your foot off the accelerator or dip the clutch and change gear (when driving the engine it sounds like a scrape, when you quickly lift your foot off the accelerator and or dip the clutch its the kind of sound you could imagine noisy fan bearing might make if you manually spun it as it came to a stop or if you quickly rattled a coke can with stones in and then stopped rattling it and then it stops until you start accelerating again where it sounds like a scrape - sorry for the crappy description - its a tough noise to describe).

Local garage is torn between timing chain tensioner or alternator bearing.

Im in leicester but work in Macclesfield 3 days a week if you can recommend somewhere to take it.

Cheers

 

[Grayfox]

No warning codes?

Do this to get codes and make sure YOU FOLLOW IT TO THE LETTER.
MICU diagnostic - Civinfo Wiki

I do hope it is not something like piston rings or some other engine internal caused by low oil or other lack of service.

 

[alcopup]

Hi

no error codes - regularly serviced so no low oil

 

[Xrv750]

How many miles has the car done? timing chains go onto high mileage before needing replaced, I don't think the service manual mentions a change interval. if you remove alternator drive belt that would eliminate the alternator, Im not sure what else the belt drives though .

 

[Warwick1984]

could be water pump thats going? if i where you I wouldnt be driving it if i thought it could be anything related to that - If the water pump goes and ceases it will cause some serious damage to the engine
:facepalm:

 

[alcopup]

Hi

done 67000 miles

No option not to drive unfortunately - local garage will take off alternator belt for £50 but I'd be happier taking it to a recommended Honda garage that may be able to diagnose it with a bit more certainty.

Cheers

 

[sirkuk]

Hi

done 67000 miles

No option not to drive unfortunately - local garage will take off alternator belt for £50 but I'd be happier taking it to a recommended Honda garage that may be able to diagnose it with a bit more certainty.

Cheers

You need to get it checked as soon as possible if it ends up to be timing chain related otherwise you may not be driving anywhere.

 

[Warwick1984]

Agreed my water pump was in its way out and my friend who is a mechanic at BMW was reluctant to drive tithe garage let alone daily use. Is it really worth risking it?

 

[alcopup]

Well - I have no option but to drive it - I work away and have to get there-I can get it looked whilst there - any recommended places near Macclesfield (it was serviced at an independent yesterday and had front pads and discs replaced and two new front tyres - they did not appear alarmed by the noise)

 

[Trevor7979]

Erm, 67,000 miles is low to be having problems with the timing chain tensioner and alternator bearings.

The major fault on CTDi's at this sort of mileage is clutch ones.
Let me explain in more detail what might be occuring.

When ANY slippage occures the pressure plate auto ratchets up, this continues until all the travel is exhausted. The car will drive normally without feeling any undue slip, if any is noticed the driver will just think 'Oh I thought I felt a bit of slip, but its gone now'!

But when the pressure plate is at the end of its adjustment the thrust bearing will be constantly in contact with the diaphram springs where noise will resonate through the bell housing.
Ends up sounding like a bag of nails, if it is this expect the clutch to fail in the near future.

Sorry to hear of your problems.

 

[alcopup]

Thanks for the info guys - I do have occasional clutch slip Trevor - I am about 30 mins away from Holdcroft Honda when in Macclesfield - good place to go?

 

[Trevor7979]

If you need a clutch why not have a CG Motorsport one?
There in Leeds, tell Linda Trevor sent you off this forum. Will not be any more than getting
a Honda chocolate one in.

Tell you what I will put an Elite stage 2 ERG map in whilst you are at it.

 

[alcopup]

Heh - I'll chew that one over Trev if it appears the clutch is causing the noise

 

[Relic]

I have the same scratchy metallic noise.
More notciable by listening in the driver front wheel arch.
Possible causes I ve now heard:
1. Fan belt idler pully bearing.
2. Alternator bearing.
3. Crank pully loose.
4. Chain tensioner and or pulley.
5. Loose timing chain.
6. clutch release bearing is a new one to me...but my cg does feel like its on its last legs with clutch release right at the top of pedal movement.

There is an extanded warrannty on the timing chains for the icdti engines Im led to believe.

 

[kraka113]

Could it be some resonance sound, from the bottom of the car? There are all kinds of boards which could resonate.

 

[Maciek]

Alcopup take it to Honda dealer for check on excessive noise from timing chain area. They should tell you whats the problem. Thats what I did and didnt pay them a single penny.
On Honda report it said: Timing chain noisy - needs replacing. Although garage who did the job said it was more likely the timing chain guide / rail.

Good luck with solving the problem.

M
sent from SGS.