what is this noise

ajsmithvmi · 08-04-2019, 03:17 PM

trying to diagnose this sound coming from the engine.

the sound starts at about 5 seconds into the video, but almost 4 minutes after engine start.

https://photos.app.goo.gl/jLQ5aaecn4pUW5LL6

some relevant background info:

-had a serpentine belt failure in June
-removed belt pieces from pan and pickup
-replaced oil pan gasket
-installed a front main seal protective cover
-added oil accumulator with check valve
-no codes present in mhd

CTinline-six · 08-07-2019, 08:28 AM

If you rev the engine slightly does the noise change? Any metal particles in the oil filter?

Also did you remove the valve cover and check for pieces of belt in the timing chain?

ajsmithvmi · 08-11-2019, 08:27 PM

I didn't find any belt in the timing area. I checked my oil filter... looks like glitter... son of a bitch.

welp.... my LS swap will begin earlier than anticipated!

08-04-2019, 03:17 PM	#1
ajsmithvmi Professional Hack 96 Rep 379 Posts Drives: 2009 135i Join Date: Dec 2017 Location: St Louis iTrader: (5)	what is this noise trying to diagnose this sound coming from the engine. the sound starts at about 5 seconds into the video, but almost 4 minutes after engine start. https://photos.app.goo.gl/jLQ5aaecn4pUW5LL6 some relevant background info: -had a serpentine belt failure in June -removed belt pieces from pan and pickup -replaced oil pan gasket -installed a front main seal protective cover -added oil accumulator with check valve -no codes present in mhd __________________ MCS 1WNR Dampers \| Ground Control Camber Plates \| E90 M3 front control arms\| E90 M3 front tension arm w/ Turner monoball bearings \| E90 M3 Steering rack conversion \| SPL Adjustable Outer Tie Rod Ends \| M3 Rear Camber Arms \| SPL Adjustable Rear Toe Arms \| M3 Front Caliper Conversion \| 275/35/18 Toyo RA1s \| 18x9.5ET22 Apex EC-7’s \| mFactory LSD \| AIM EVO4S with GS Dash \| New for 2020: LS1 Swap!
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08-07-2019, 08:28 AM	#2
CTinline-six Hoonigan 6825 Rep 3,000 Posts Drives: '09 328i, '98 Wrangler Join Date: Dec 2016 Location: Connecticut iTrader: (0) Garage List 2009 BMW 328i N51 [0.00]	If you rev the engine slightly does the noise change? Any metal particles in the oil filter? Also did you remove the valve cover and check for pieces of belt in the timing chain? __________________ "Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should." -Dr. Ian Malcolm, Jurassic Park
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08-11-2019, 08:27 PM	#3
ajsmithvmi Professional Hack 96 Rep 379 Posts Drives: 2009 135i Join Date: Dec 2017 Location: St Louis iTrader: (5)	I didn't find any belt in the timing area. I checked my oil filter... looks like glitter... son of a bitch. welp.... my LS swap will begin earlier than anticipated! __________________ MCS 1WNR Dampers \| Ground Control Camber Plates \| E90 M3 front control arms\| E90 M3 front tension arm w/ Turner monoball bearings \| E90 M3 Steering rack conversion \| SPL Adjustable Outer Tie Rod Ends \| M3 Rear Camber Arms \| SPL Adjustable Rear Toe Arms \| M3 Front Caliper Conversion \| 275/35/18 Toyo RA1s \| 18x9.5ET22 Apex EC-7’s \| mFactory LSD \| AIM EVO4S with GS Dash \| New for 2020: LS1 Swap!
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