Vw caddy nocking noise

[Adie66]

https://vimeo.com/354519387
Anyone had this noise before pd130 asz conversion
And turbo
Still needs mapping but somethings not right

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[Benfowler3]

The video sounds really quiet to me buddy can’t really hear a thing could be me tho


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[Novakid]

That sounds like something lose or something catching.

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[Adie66]

Ive had it apart checking things and i cant find anything obvious thats lose or anything its doing my head in
Im starting to get beyond my capabilities to diagnose whats up with it
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[gjseb]

It's sounds like something rubbing if you get me nothing bent or out off balance slight is there

[Doc]

There definitely a noise of a failed bearing of some sort, cambelt idler or alternator pulley maybe?

[Adie66]

Not that i can see there doesnt see to be any sign of anything catching
Ive already had the cam pulley of to check that its not catching anywhere and the backing plate is plastic behind the pulley
I cant see what would be out of balance

Its strange it doesnt do it when it first starts then after few seconds it starts to become more pronounced

Its got a brand new timing belt kit an tensioner on it

I have also run it without the alternator belt off an still the same
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[gjseb]

It's not gear catching on start is it

[Adie66]

the noise is coming from the cam pulley area

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[Novakid]

Been watching YouTube videos with faults eyes closed haha.
One guy had a catching sound sound was at the top of engine, turned out to be the flywheel.
Have you been you been under when it's running?
Then another video sounds similar to yours but only one person saying a worn camshaft, did you get the camshaft done when the block was getting skimmed or at least checked for wear?

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[Adie66]

Cant be the flywheel its got a brand new smf conversion on it with 0 miles on it all

Yeah ive been under it when its running an you cant hear it underneath its on the top whatever it is

Yeah i ask to the engine shop to check everything the cam an the bearings ect they said it was fine im going getting new cam pulley tomorrow an i have another engine at my mates unit if i cant fix it ill have to start again with my spare engine
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[Novakid]

Lets hope it's the pully mate.
Nothing worse after all the work done.

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[Adie66]

Telling me mate im pulling my hair out with it
I will prevail

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[peely]

Just a maybe , but if it doesn’t do it from first start would you think a bearing because I’ve known knackered bearings be quiet at first then as they worm up they start to rumble or squeak, sooner if they knackered of course, good luck anyway mate I feel your frustration

[Adie66]

Yeah doc said the same thing

Im getting a new cam pulley today going to give that a go first
if its not that then im going to start stripping it to check the bearings like you an doc have suggested
I will get there in the end one way or another

Thanks for the input any ideas are welcomed

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