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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
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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. |
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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
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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:
Quote:
Quote:
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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? |
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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. |
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Have you ever heard this noise in an engine after a VCG repair?
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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 |
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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
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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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