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Have you ever heard this noise in an engine after a VCG repair?



 
 
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  #1  
Old December 12th 17, 05:36 AM posted to alt.home.repair,rec.autos.tech,sci.electronics.repair
Arthur Wood
external usenet poster
 
Posts: 6
Default Have you ever heard this noise in an engine after a VCG repair?

Subject: Have you ever heard THIS SOUND inside your engine?
URL: http://www.bimmerfest.com/forums/sho....php?t=1181089

Nobody on Bimmerfest knows what is causing this noise and I can't use the
car until I figure out how to figure out what the noise is.

This only started after I did some work this weekend on the valve cover but
it sounds like someone left a socket inside the engine and it's bouncing
around somewhere.

I'm pretty sure I didn't leave anything inside where this sounds like it's
in the intake manifold but it's hard to figure out where it's coming from
as it's intermittent.

It sounds like it's coming from the top of the engine somehow but it's hard
to place where.

You should not need a login to read that thread and download the videos.
<http://www.bimmerfest.com/forums/attachment.php?attachmentid=730369&d=1513035084>

Here's just an audio file:
<http://www.bimmerfest.com/forums/attachment.php?attachmentid=730353&d=1513034666>

When you download them, remove the *pdf which I added so that the MP4 would
look like a PDF to the forum upload GUI.

I can't imagine what is making that noise which is why I'm asking you for
how to debug that noise. Thanks!
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  #2  
Old December 12th 17, 06:31 AM posted to alt.home.repair,rec.autos.tech,sci.electronics.repair
Vic Smith
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Posts: 953
Default Have you ever heard this noise in an engine after a VCG repair?

On Tue, 12 Dec 2017 04:36:26 -0000 (UTC), Arthur Wood > wrote:

>Subject: Have you ever heard THIS SOUND inside your engine?
>URL: http://www.bimmerfest.com/forums/sho....php?t=1181089
>
>Nobody on Bimmerfest knows what is causing this noise and I can't use the
>car until I figure out how to figure out what the noise is.
>
>This only started after I did some work this weekend on the valve cover but
>it sounds like someone left a socket inside the engine and it's bouncing
>around somewhere.
>
>I'm pretty sure I didn't leave anything inside where this sounds like it's
>in the intake manifold but it's hard to figure out where it's coming from
>as it's intermittent.
>
>It sounds like it's coming from the top of the engine somehow but it's hard
>to place where.
>
>You should not need a login to read that thread and download the videos.
><http://www.bimmerfest.com/forums/attachment.php?attachmentid=730369&d=1513035084>
>
>Here's just an audio file:
><http://www.bimmerfest.com/forums/attachment.php?attachmentid=730353&d=1513034666>
>
>When you download them, remove the *pdf which I added so that the MP4 would
>look like a PDF to the forum upload GUI.
>
>I can't imagine what is making that noise which is why I'm asking you for
>how to debug that noise. Thanks!


The only time I've heard a similar noise is from crank throws hitting cam lobes.
It was when I rebuilt a 352 and reinstalled the spacer used for the old timing gear.
The new cast iron timing gear had the that spacer cast into the gear.
That allowed the cam to travel in the path of the throws.
It was intermittent until the cam bearings wiped.
Otherwise, your theory is as good as mine.
  #3  
Old December 12th 17, 05:14 PM posted to alt.home.repair,rec.autos.tech,sci.electronics.repair
Iggy
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Posts: 5
Default Have you ever heard this noise in an engine after a VCG repair?

replying to Arthur Wood, Iggy wrote:
None of the links worked for me and my fiddling around with them. But, if it's
sounding like something's loose and damaging everything in its path, then
you'll have to get back in and re-do your valve cover work. Maybe a 3/8's to
1/4 ratchet reducer, short extension, hex bit, rolled-up tube of Threadlocker,
etc. got left behind. Even though it's a BMW, I can't imagine you accidently
and unknowingly created a problem...unless your valve cover work included
removing the PCV or slopping in RTV that clogged venting and the sound is
pressure blowing the seals.

--
for full context, visit https://www.homeownershub.com/mainte...a-1152886-.htm


  #4  
Old December 12th 17, 07:45 PM posted to alt.home.repair,rec.autos.tech,sci.electronics.repair
Arthur Wood
external usenet poster
 
Posts: 6
Default Have you ever heard this noise in an engine after a VCG repair?

Arthur Wood wrote:

> Are you on a Macintosh?
>
> Hopefully the answer will be in this thread if someone knows the Macintosh.
> Can a Macintosh person tell us how to change the name of a file?
> <https://groups.google.com/d/msg/comp.sys.mac.apps/lvUtrehWuQw/59E76aWxCQAJ>


It seems from my PMs on the web forum that the Macintosh users are having
trouble renaming the file to remove the ".pdf" extension so I asked on
comp.sys.mac.apps how Macintosh users can change the file name from
file.mp4.pdf to file.mp4 so they can watch the video.
<https://groups.google.com/forum/#!topic/comp.sys.mac.apps/lvUtrehWuQw>

Here are some of the responses if you're on a Macintosh and need to change
the file name from file.mp4.pdf to file.mp4 instead.

Quote:
Originally Posted by Tim_Streater
Can
a Macintosh person tell us how to change the name of a file?

Yes. Same way as on Windows.
Click on the filename until it highlights and then type the new name.
Quote:
Originally Posted by Alan_Baker
On a Mac, you select the file, and hit <Return>. That activates the file
name for editing. When you remove '.pdf' from the name and hit <Return>
again, the Finder will ask if you really want to change the file name
extension and offer you the option of using '.mp4' or '.pdf'.

If the file name extensions are hidden, then you can use "Get Info" from
the Finder's File menu to do it instead.
Quote:
Originally Posted by Andre_G._Isaak
Tell the Macintosh users to go to Finder->Preferences->Advanced and make
sure 'show all filename extensions' is checked.
  #5  
Old December 12th 17, 10:47 PM posted to alt.home.repair,rec.autos.tech,sci.electronics.repair
micky
external usenet poster
 
Posts: 383
Default Have you ever heard this noise in an engine after a VCG repair?

In alt.home.repair, on Tue, 12 Dec 2017 04:36:26 -0000 (UTC), Arthur
Wood > wrote:

>
>You should not need a login to read that thread and download the videos.
><http://www.bimmerfest.com/forums/attachment.php?attachmentid=730369&d=1513035084>
>
>Here's just an audio file:
><http://www.bimmerfest.com/forums/attachment.php?attachmentid=730353&d=1513034666>


It's hard for me to tell what the sound is, so,

Any chance the thermostat went bad and the coolant is boiling?
  #6  
Old December 13th 17, 08:06 AM posted to alt.home.repair,rec.autos.tech,sci.electronics.repair
Arthur Wood
external usenet poster
 
Posts: 6
Default Have you ever heard this noise in an engine after a VCG repair?

Phil Kangas wrote:

> Perhaps you changed something that controls ignition action?
> Like, something is changing the spark timing and it is now
> far
> too advanced? Spark knock? Maybe? hmmm....


I hadn't thought of that, where I did recently install the BMW dealer
software of the era when my car was new called INPA which allows me to read
all the electronic control units and reset the codes for all modules (not
just OBDII modules):
<https://www.turboimagehost.com/p/36851946/inpa1.jpg.html>

Some of this BMW dealer software can also program each module but I didn't
run any of that, and it can reset something called the "adaptations",
again, which I didn't touch to my knowledge.

I should be able to get the spark advance out of the dealer software though
<https://www.turboimagehost.com/p/36851948/lean1.jpg.html>

My OBDII reader shows spark at 6 degrees advanced at idle and then it jumps
to 20 and 30 degrees in the live data as I drove - where I don't actually
know what it's supposed to be. I don't even know where that data is.
<https://www.turboimagehost.com/p/36851949/lean2.jpg.html>

I have heard spark knock before where it sounds like marbles under load.
This doesn't sound like marbles. It sounds more like one marble.
  #8  
Old December 13th 17, 03:14 PM posted to alt.home.repair,rec.autos.tech,sci.electronics.repair
Iggy
external usenet poster
 
Posts: 5
Default Have you ever heard this noise in an engine after a VCG repair?

replying to Arthur Wood, Iggy wrote:
Sorry in advance, I couldn't resist with a discussion so on point. I don't
know why anyone buys or even puts up with German crap. How many decades,
models and makes does it take. Truth about BMW e46 M54 engine
https://www.youtube.com/watch?v=Kn4ZnT5qPpo

--
for full context, visit https://www.homeownershub.com/mainte...a-1152886-.htm


  #9  
Old December 13th 17, 04:22 PM posted to rec.autos.tech
[email protected]
external usenet poster
 
Posts: 128
Default Have you ever heard this noise in an engine after a VCG repair?

On Wednesday, December 13, 2017 at 8:14:08 AM UTC-6, Iggy wrote:
> replying to Arthur Wood, Iggy wrote:
> Sorry in advance, I couldn't resist with a discussion so on point. I don't
> know why anyone buys or even puts up with German crap. How many decades,
> models and makes does it take. Truth about BMW e46 M54 engine
> https://www.youtube.com/watch?v=Kn4ZnT5qPpo
>
> --
> for full context, visit https://www.homeownershub.com/mainte...a-1152886-.htm


Why not email the BMW Tech people inn Germany, or wherever?
  #10  
Old December 13th 17, 05:58 PM posted to rec.autos.tech
Scott Dorsey
external usenet poster
 
Posts: 3,914
Default Have you ever heard this noise in an engine after a VCG repair?

> wrote:
>On Wednesday, December 13, 2017 at 8:14:08 AM UTC-6, Iggy wrote:
>> replying to Arthur Wood, Iggy wrote:
>> Sorry in advance, I couldn't resist with a discussion so on point. I don't
>> know why anyone buys or even puts up with German crap. How many decades,
>> models and makes does it take. Truth about BMW e46 M54 engine
>> https://www.youtube.com/watch?v=Kn4ZnT5qPpo

>
>Why not email the BMW Tech people inn Germany, or wherever?


Or the bmwcca for that matter. If you're not a bmwcca member, now might be
a good time to join, if only for the discount on parts.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."
 




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