Engine noise out of interest

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Andrew S
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Engine noise out of interest

Post by Andrew S »

I know when you remove an oil filler cap the engine will become unhappy and I thought I would do this on my daughters 1.2 9N and wondering what this noise is. Its only there with cap off but sometimes I can hear this noise when pulling away. It idles and revs so smoothly and quietly, its just under load. Had the belt off and all pulleys seem secure.

https://youtu.be/BVli94HWuEg

Is it just the fact its a 3 cylinder diesel sound or is there something knocking? Is it normal in other words. Could it be the exhaust flexi pipe?

Any thoughts much appreciated
Cheers
Andrew
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alexperkins
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Re: Engine noise out of interest

Post by alexperkins »

The 3 cylinder diesels are quite noisy. If the noise isn’t there with the cap on it’s nothing to worry about
Andrew S
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Drives: Polo 2004
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Re: Engine noise out of interest

Post by Andrew S »

Hi Alex
It’s a petrol engine but it sounds like a diesel sometimes when pulling away under lad. Quiet on idle but it Mayes that noise with oil cap off
Presume you comment is the same
Much appreciated
Andrew
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alexperkins
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Re: Engine noise out of interest

Post by alexperkins »

Sorry I misread, but yes, with the oil cap off you’ll hear a lot of noise as the oil slaps around the cylinder head. If the noise isn’t there with the oil cap on, it’s all good.
Andrew S
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Joined: Tue Mar 01, 2016 1:01 pm
Drives: Polo 2004
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Re: Engine noise out of interest

Post by Andrew S »

Cheers Alex
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