Knocking noise...

[Robatron]

Sorry, to re-phrase, it gets no louder but is still evident.

The knocking gets no worse as the revs are raised

If thats the case then its very unlikely to be a rotational component, ie belts or cams etc, more like something vibrating against bodywork or another component or similer?

[Robatron]

How about slipping the multi V belt off? Definitely removes the possibility of it being PAS or alternator if it's still there.

Check the water pump for noise too. I don't know what the I5 engines have fitted but many VAG cars suffer from plastic impellors failing. They can rattle before the they stop completely.

I shall give this a go out of desperation but the noise is definatly from the top end of the engine.

well i know you dont want to hear it but a friend's (stiglet) last engine (kv) had a simmilar rattle and a rocky idle as well as being bit down on power....turned out to be a bit of the metal ring on the headgasket that had broken off and was rattling about.....trashed the piston hope this isnt the same problem....although the sound was quite a bit louder the higher the revs.

Ant

Well there isn't normally a rocky idle but it was chugging a couple of days back when I started it up which is very out of character.

The knocking gets no worse as the revs are raised so hopefully this isn't the problem we have at hand.

Bloody car!

[anton]

well i know you dont want to hear it but a friend's (stiglet) last engine (kv) had a simmilar rattle and a rocky idle as well as being bit down on power....turned out to be a bit of the metal ring on the headgasket that had broken off and was rattling about.....trashed the piston hope this isnt the same problem....although the sound was quite a bit louder the higher the revs.

Ant

[sheppardnias]

How about slipping the multi V belt off? Definitely removes the possibility of it being PAS or alternator if it's still there.

Check the water pump for noise too. I don't know what the I5 engines have fitted but many VAG cars suffer from plastic impellors failing. They can rattle before the they stop completely.

[Robatron]

Nutsacks!

I gave the PAS belt abit of a spray up with WD40 and it didn't do much to be honest but it was definatly worth a try. I had my screwdriver out (quiet in the back!) and was trying to establish where on earth the vibration was coming from and so far I haven't been able to directly trace it.

The alternator seems fairly tight and there was no vibration coming off of the alternator so I did rule that out but I shall go and check the bracket when I get a spare moment.

The only noise I could pick up through the screwdriver was from the rocker cover but to me it was just the normal tappety noise you get from the lifters and I couldn't hear any knocking from elsewhere.

If standing over the engine bay the noise definatly seems to be coming from cam area/region so perhaps it is something to do with the distributor but it does sound closer to the front of the car, i.e. cam chain.

[Rusty]

The swear filter does need a bit of tweaking, we're all adults afterall.

[Robatron]

[s2driveruk]

aha...sh**ty lives on

[s2driveruk]

what you ****ing talking about the swear filter isn't ******** at all it been ******ed about with until it captures any ****** words that could otherwise slip through

[Robatron]

This swear filter is abit sensitive!

[Robatron]

I shall give it a try, thanks guys!

I'm crossing my fingers here as if something abit more serious has gone wrong then I am well and truely ******ed as I haven't the money to send it off to have it rebuilt properly and I haven't the mechanical knowledge to do something that major by myself.

[s2driveruk]

a 2nd vote for the alternator bracket, sounds awful when this is on its way out or alternator is loose in it.

[Rusty]

A touch of WD40 on the PAS belt should sort it

[Robatron]

Ok I shall have a listen when I get a chance.