1.6 8v afx motor rattling noise

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Jazzyfizzer
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1.6 8v afx motor rattling noise

Post by Jazzyfizzer »

Hi there guys,

I am in desperate need of any help whatsoever. I have a mk1 citi with a 1.6 8v afx motor. I have the car for 5 years now and it has been well maintained. Last month I noticed the lifters started to get rowdy, and just to be on the safe side I put in a brand new Schadek oil pump and did a service. Even then, the noise persisted so I decided to buy a set of Ina hydraulic lifters and installed them. I replaced the cam belt tensioner as well. I've approached 3 genuine vw mechanics and they said it doesn't sound like a piston flap or a rod knock. They said that it could be the intermediate shaft bearings are worn out resulting in a rattling noise which worsens at high rpm. So just to rule out, it's not the water pump bearing, not the tensioner or lifters, not the alternator bearings, not the camshaft, not the oil pump. What else can it be? Can a worn out intermediate shaft cause this? Any feedback would be much appreciated.
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Re: 1.6 8v afx motor rattling noise

Post by -=sT3V3=- »

A video of the noise will help big time. The experts on here will know the sound.
\
highly doubt its the inter shaft bearing, barely any lateral torque on the shaft and they are 1 piece bearings
Jazzyfizzer
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Re: 1.6 8v afx motor rattling noise

Post by Jazzyfizzer »

Any idea where to go to upload a video? Thank you.
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RedBeard
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Re: 1.6 8v afx motor rattling noise

Post by RedBeard »

I downloaded Tapatalk. Works a charm for me. Think there are other site you can use
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Re: 1.6 8v afx motor rattling noise

Post by Neuk »

Jazzyfizzer wrote: Mon May 21, 2018 10:34 am Any idea where to go to upload a video? Thank you.
YouTube?
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Jazzyfizzer
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Re: 1.6 8v afx motor rattling noise

Post by Jazzyfizzer »

Okay guys, I uploaded it on YouTube. Below is the link. Thank you.

https://youtu.be/i8ZzvAjE9W4
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panic-mechanic
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Re: 1.6 8v afx motor rattling noise

Post by panic-mechanic »

Very hard but given the evidence up to this stage I'd say you have run a big end bearing.
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Re: 1.6 8v afx motor rattling noise

Post by Jazzyfizzer »

Thank you so much for all the feedback guys.
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Re: 1.6 8v afx motor rattling noise

Post by PoloMike »

I had a knock on my 1.8 Polo that i couldnt figure out, turned out to be the Crank Pulley that had broken the Key slot and was running lose, so in easy terms it was ' flapping' which sounded like the crank had run a big end. In other words,make sure the crank pulley is tightened.
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Re: 1.6 8v afx motor rattling noise

Post by VAG Fan »

The noise is not perfectly periodic / regular, but sporadic. I would guess its something external.
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