Clicking noise at tickover 1.6hdi

[Evilsamo]

Hi Folks, 

A bit of an odd one....

it's on a 56 plate 1.6 hdi with just over 100k miles. 

when starting cold, there is a clicking/ticking noise which is louder than the regular tickover. 

the engine carries on absolutely fine - no cutting out, tickover is at stable revs. 

If i give it a few extra revs, the noise goes away but comes back when dropped back to tickover. 


Once the engine has warmed up the noise goes away completely. 

It seems to be coming from the drivers side.

the video is of the ground near front offside wheel - apologies for this, but the sound is clearest there.
[video=youtube]http://youtu.be/ms0nSP0gxwY[/video]


any ideas much appreciated 

Thanks 

[gazahull]

hello. heard that noise before, might be crankshaft pulley, starting to go. if it's not been changed within that mileage. so if that is the problem, you might as well change the other pulleys. saves hassle in future.

[Evilsamo]

Thanks Gaza, with a crank pulley, would I expect the noise to get worse at higher revs? also do you know how I could check that out without doing anything too intrusive? at idle it's sat just above 800 revs and the noise goes away completely if i give it the lightest of touches on the accelerator.
Thanks

[Evilsamo]

Also, I should have probably mentioned that it's only starting from cold when the weather is also cold. When it's a few deg warmer it doesn't do it at all which was has led me to my current baffled state

[polar]

Do you have an injector leaking?

[Evilsamo]

one was leaking before I got the car, but after a damn good tighten hasn't leaked since.

have booked into the stealership for diags and will report back here - my searches for similar noises haven't turned up the same one, so hopefully this will both be 1) not financially crippling, and 2) useful to someone else somewhere along the way :-)

[ron]

one was leaking before I got the car, but after a damn good tighten hasn't leaked since.

have booked into the stealership for diags and will report back here - my searches for similar noises haven't turned up the same one, so hopefully this will both be 1) not financially crippling, and 2) useful to someone else somewhere along the way :-)

It may be a hydraulic tappet sticking usually due to infrequent oil changes/wrong oil used.Change the oil & filter first as it's the cheapest  start & will certainly do no harm.Perhaps a flush first?

[Evilsamo]

Thanks Ron, will give that a shot - it seems to have only ever had dealership oil thus far... Not sure if that's a good or bad thing really as, looking over service receipts from before I had it, historically its had 10w rather than 5w. I guess that's what the previous owner got for taking it to a vauxhall place for servicing.

[ron]

Use only total inea 5/30 oil.These engines are very particular on oil needs.Try Nielsons for good prices.

[Evilsamo]

Have checked through again, it was serviced approx 6k miles ago and deffo has the right oil in it.

This morning the issue has developed slightly and has added a very lumpy idle on start and a degree of blue smoke out the exhaust.

I fear that open wallet season has arrived