1.4 BHC - Stubborn engine related noise ...

Bordos said:
And have you checked this fuel pipe with silencer ?
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No I haven't check this fuel pipe yet. I'll put my phone next to the pipe all around and record the video to confirm. If it's the pipe it'll be pretty obvious from vibration you can see and hear.
 
bix said:
No I haven't check this fuel pipe yet. I'll put my phone next to the pipe all around and record the video to confirm. If it's the pipe it'll be pretty obvious from vibration you can see and hear.
Click to expand...
Hmm - I was just thinking how to check this pipe alone - I might just try to do it with a phone :)
 
So a little update:

I went under my A2 yesterday for further investigation - still did not found any reasonable source for the rattle (when standing in front of the car with the bonnet out, or lying below the engine compartment the rattle is either impossible to distinguish from the engine noise or not there...).

Tried to press/hold/watch the fuel hose with the silencer on it - but this has no effect on the rattle (i.e. when the rattle is there, squeezing this hose does not effects it).

Definitely it is not sourced from the gearbox area...

The only suspicious thing I noticed it that the auxiliary belt tensioner pulley very very close to the metal timing belt cover element - I have to investigate is further ...
 
Bordos said:
So a little update:

I went under my A2 yesterday for further investigation - still did not found any reasonable source for the rattle (when standing in front of the car with the bonnet out, or lying below the engine compartment the rattle is either impossible to distinguish from the engine noise or not there...).

Tried to press/hold/watch the fuel hose with the silencer on it - but this has no effect on the rattle (i.e. when the rattle is there, squeezing this hose does not effects it).

Definitely it is not sourced from the gearbox area...

The only suspicious thing I noticed it that the auxiliary belt tensioner pulley very very close to the metal timing belt cover element - I have to investigate is further ...
Click to expand...
Take drive belt off and see if its still present, have you checked alternator pulley?
 
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Blast! When you did timing belt did you do the water pump too? Clutching at straws really but have known water pumps to make a similar noise but usually it's not long after that things develop catastrophically so doubt it really
 
Howey said:
Blast! When you did timing belt did you do the water pump too? Clutching at straws really but have known water pumps to make a similar noise but usually it's not long after that things develop catastrophically so doubt it really
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Water pump was changed together with the timing and oil pump chain …
I was sure that this rattle came from this chain but replacing it together with the tensioner and sprockets changed nothing …
 
Bordos said:
So a little update:

I went under my A2 yesterday for further investigation - still did not found any reasonable source for the rattle (when standing in front of the car with the bonnet out, or lying below the engine compartment the rattle is either impossible to distinguish from the engine noise or not there...).

Tried to press/hold/watch the fuel hose with the silencer on it - but this has no effect on the rattle (i.e. when the rattle is there, squeezing this hose does not effects it).

Definitely it is not sourced from the gearbox area...

The only suspicious thing I noticed it that the auxiliary belt tensioner pulley very very close to the metal timing belt cover element - I have to investigate is further ...
Click to expand...

How many silencers do you have on your hose? I believe there were two versions. Earlier cars had just one and then later they added another one. I think that's the reason why this simple rubber hose cost over 100 quid
 
bix said:
How many silencers do you have on your hose? I believe there were two versions. Earlier cars had just one and then later they added another one. I think that's the reason why this simple rubber hose cost over 100 quid
Click to expand...
I have the single silencer one …
 
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