Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB
Page 1 of 4 1 234
Show 40 post(s) from this thread on one page

Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB (https://www.ft86club.com/forums/index.php)
-   Engine, Exhaust, Transmission (https://www.ft86club.com/forums/forumdisplay.php?f=8)
-   -   Really odd engine noise (https://www.ft86club.com/forums/showthread.php?t=58071)

Deadspool 02-12-2014 02:02 PM
Really odd engine noise
 
It sounds like metal on metal maybe, or something of the sorts. I do know its not the engine itself, would it just be a really odd twist on the DI pump strangeness I wonder?




Link to video:




https://www.dropbox.com/s/v1sxudsmum...212_135335.mp4

Deadspool 02-12-2014 02:11 PM
amplifying information, the noise goes away anything after 1k rpm, does not make this noise at cruise.

Thorpedo 02-12-2014 02:22 PM
Can't listen because i'm in class, but how do you know it's not the engine? (especially given it's rpm dependent)

Deadspool 02-12-2014 02:26 PM
It continues after shutting it down and becomes louder, makes whale noises




NRUUUUWOOOWUWUWOWOWOowoOWUWOOooooooo

Thorpedo 02-12-2014 02:29 PM
Quote:
Originally Posted by Deadspool (Post 1523956)
It continues after shutting it down and becomes louder, makes whale noises




NRUUUUWOOOWUWUWOWOWOowoOWUWOOooooooo
Hahaha my bad. Apparently I should have watched the video as I didn't see that one coming.

Deadspool 02-12-2014 02:31 PM
Quote:
Originally Posted by Thorpedo (Post 1523968)
Hahaha my bad. Apparently I should have watched the video as I didn't see that one coming.


lol, its all good. There has been no ill effect for driveability yet. But I imagine I will be in for a bad day if I ignore this.

FrsDuke 02-12-2014 02:32 PM
Bearing?

Target70 02-12-2014 02:51 PM
If it does it when cold, you could try taking the serpentine belt off and starting it for a few seconds, (no more than 40 for safety) that would isolate it to any pulley bearings/accessories or rule out any of them if it still does it. Plus you could spin the pulleys by hand and check for wobble, or rough or stiff rotation.

Deadspool 02-12-2014 02:56 PM
Quote:
Originally Posted by Target70 (Post 1524037)
If it does it when cold, you could try taking the serpentine belt off and starting it for a few seconds, (no more than 40 for safety) that would isolate it to any pulley bearings/accessories or rule out any of them if it still does it. Plus you could spin the pulleys by hand and check for wobble, or rough or stiff rotation.


My apologies, I had forgotten to mention that it make the noise when warm. I will pull the serpent belt off to eliminate pullies for certain.


However the noise persists after the engine has been shut down for a few moments, as if relieving pressure.

FrsDuke 02-12-2014 03:08 PM
Sounds like turbo bearing to me.

Target70 02-12-2014 03:13 PM
I saw that on the video, I just thought it was something spinning down. That does sound like metal on metal, and if it keeps doing it after the crank is stopped, and only does it when it's warm, maybe it is the cooling fan(s).

Other than that, I have never heard a turbo bearing go out, but I would have to agree with FrsDuke, something that keeps spinning for a few seconds after the engine cuts off and is metal on metal = turbo.

Deadspool 02-12-2014 03:23 PM
Quote:
Originally Posted by FrsDuke (Post 1524103)
Sounds like turbo bearing to me.
Quote:
Originally Posted by Target70 (Post 1524118)
I saw that on the video, I just thought it was something spinning down. That does sound like metal on metal, and if it keeps doing it after the crank is stopped, and only does it when it's warm, maybe it is the cooling fan(s).

Other than that, I have never heard a turbo bearing go out, but I would have to agree with FrsDuke, something that keeps spinning for a few seconds after the engine cuts off and is metal on metal = turbo.
I will check shaft play right now.

wheelhaus 02-12-2014 03:30 PM
Subscribed, this is a strange one...

Deadspool 02-12-2014 03:50 PM
Turbo feels good. no evidence of it touching the compressor housing.


All times are GMT -4. The time now is 05:14 AM.
Page 1 of 4 1 234
Show 40 post(s) from this thread on one page

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2026, vBulletin Solutions Inc.
User Alert System provided by Advanced User Tagging v3.3.0 (Lite) - vBulletin Mods & Addons Copyright © 2026 DragonByte Technologies Ltd.


Garage vBulletin Plugins by Drive Thru Online, Inc.