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Use a stethoscope headset - does the engine still sound healthy?

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SvenGWK
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Post by SvenGWK »

You can find a lot of videos on YouTube where people ask if their engine sounds good. The audio recording is usually done with the normal smartphone microphone and the origin of some noises cannot be determined later in the video.
I made a little experiment with a headset today and I think it worked quite well.
You can even hear the sound change towards the end of the video when I opened the oil cap. ;-)
The video was suddenly turned upside down after the upload and is distorted, but in this case the sound is the most important thing.
The clacking noise are apparently the hydraulic lifters (engine was warm...). Most of the old Volvo engines I found on the web sound like this. Should I be worried about this or other noises from my engine?

https://sendvid.com/5yb68e8h

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abscate
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Post by abscate »

Thats the best sound quality I have heard on a Volvo Engine!!

All those sounds don't sound bad to me - a lot like mine, at least.
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Rattnalle
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Post by Rattnalle »

Brilliant idea. I'm going to try this to isolate an annoying whining my engine is doing that hasn't changed since I got the car. I'm starting to think PCV..

I agree it sounds quite normal. Both lifters and injectors tick a bit.

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Post by abscate »

And the ticks are really amplified when you use a microphone or stethoscope, too.
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SvenGWK
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Post by SvenGWK »

Thanks guys, i'll see if the noise can be isolated better. I now think the injectors are also responsible for this ticking.
I found an example with a problematic lifter (not my car!):

Same engine, and it also has this high ticking - but an additional "evil" noise.
Strangely enough, the lifter noise has disappeared on its own at the end.
(I had read his story in another forum)
Sometimes miracles happen. ;-)

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BigPetla
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Post by BigPetla »

SvenGWK wrote: 05 Apr 2018, 12:45 You can find a lot of videos on YouTube where people ask if their engine sounds good. The audio recording is usually done with the normal smartphone microphone and the origin of some noises cannot be determined later in the video.
I made a little experiment with a xbox one headsets today and I think it worked quite well.
You can even hear the sound change towards the end of the video when I opened the oil cap. ;-)
The video was suddenly turned upside down after the upload and is distorted, but in this case the sound is the most important thing.
The clacking noise are apparently the hydraulic lifters (engine was warm...). Most of the old Volvo engines I found on the web sound like this. Should I be worried about this or other noises from my engine?

https://sendvid.com/5yb68e8h
Are you searching for a headset which you can use across several gaming devices at a time?

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wizechatmgr
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Post by wizechatmgr »

Sounds normal to me.
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June
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Post by June »

Sounds normal to me as well. Some whiteblock engines use solid lifters others use hydraulic. June
My Volvo cars owned
1989 740 GLT ordered
1994 850 4door standard shift ordered
1996 960 ordered
1998 S90 ordered totalled after 3 weeks
1998 V70 GT dealer stock car
2002 S80 T6 ordered totalled
2004 S80 T6 dealer stock car and current car owned

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