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nick wharton2 Samba Member
Joined: November 20, 2003 Posts: 41 Location: Modesto Ca
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Posted: Fri Jun 10, 2016 1:01 pm Post subject: Re: Fan whine |
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I know that sound all too well. its the noise air makes when passing thru shroud at the very bottom of the fan. there is a flat metal piece and on some aftermarket shrouds the distance is too close, making air whistle as it passes thru. we actually used to bent that area closer to make that sound (hey.... we were 16) don't judge me, lol _________________ cheap, fast, or reliable. Pick two
unless you're sponsored |
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nextgen Samba Member
Joined: August 19, 2004 Posts: 6008 Location: CONGERS, N.Y.
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drumbum68 Samba Member
Joined: October 15, 2010 Posts: 566
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Posted: Fri Jun 10, 2016 3:40 pm Post subject: Re: Fan whine |
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theDrew wrote: |
mark tucker wrote: |
fan shims. |
different from the pulley shims? |
No. |
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theDrew Samba Member
Joined: May 17, 2011 Posts: 1155 Location: Camas, WA
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Teeroy Samba Member
Joined: April 20, 2003 Posts: 3682 Location: Eastern WA
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Posted: Fri Jun 10, 2016 10:17 pm Post subject: Re: Fan whine |
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Get more shims, if you take the ones from the pulley it won't have enough and will fail _________________ Pres. Rivercity VW Club www.rcvwclub.org
Founder Derr Wheat Panzers (DWP)
ARR #3
www.autosportsnorthwest.org |
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theDrew Samba Member
Joined: May 17, 2011 Posts: 1155 Location: Camas, WA
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Posted: Sat Jun 11, 2016 7:38 am Post subject: Re: Fan whine |
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is the nut holding the fan on standard thread or reversed? I can't get the damn thing off! _________________ Turbo 2276 MS3X build http://www.thesamba.com/vw/forum/viewtopic.php?t=673125
1985 Vanagon Campmobile w/ 2005 EJ25 |
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drumbum68 Samba Member
Joined: October 15, 2010 Posts: 566
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Posted: Sat Jun 11, 2016 7:58 am Post subject: Re: Fan whine |
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theDrew wrote: |
is the nut holding the fan on standard thread or reversed? I can't get the damn thing off! |
Not IIRC, just on there tight, 45ft.lbs.
Factory specs for factory fan, backing plate, and shroud is 2mm clearance between fan and backing plate. You'll have to use your judgment when dealing with aftermarket shroud. You may be able to get away with a 10th of an inch.
Don't have a 1/2" impact? |
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theDrew Samba Member
Joined: May 17, 2011 Posts: 1155 Location: Camas, WA
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Posted: Sat Jun 11, 2016 12:11 pm Post subject: Re: Fan whine |
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I was trying to get the alternator out without pulling the shroud, so my impact doesn't fit back there. It's awkward so I just can't get much of a purchase on it. I'll give it another go later today _________________ Turbo 2276 MS3X build http://www.thesamba.com/vw/forum/viewtopic.php?t=673125
1985 Vanagon Campmobile w/ 2005 EJ25 |
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mark tucker Samba Member
Joined: April 08, 2009 Posts: 23937 Location: SHALIMAR ,FLORIDA
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Posted: Sat Jun 11, 2016 9:09 pm Post subject: Re: Fan whine |
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butter fly impact...or air rat shit....or breaker bar.all seem to work good, or possiably a battery operated impact like the oned used for construction&screwing |
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rockurob Samba Member
Joined: August 23, 2009 Posts: 358 Location: Okla City, Oklahoma
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Posted: Tue Jun 14, 2016 8:09 pm Post subject: Re: Fan whine |
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nick wharton2 wrote: |
I know that sound all too well. its the noise air makes when passing thru shroud at the very bottom of the fan. there is a flat metal piece and on some aftermarket shrouds the distance is too close, making air whistle as it passes thru. we actually used to bent that area closer to make that sound (hey.... we were 16) don't judge me, lol |
LOL, always wondered how that sound was made..... VW friend of mine
in the early 90's, his sounded the same, we always wondered how his
fan made that sound...... _________________ 70's....Owner "Der Bug Shoppe" Okla. City
70 Baja Street Rod Project
https://www.thesamba.com/vw/gallery/pix/1644125.jpg
Drag Buggy project:
https://www.thesamba.com/vw/gallery/pix/1726674.jpg
61 Rag Project:
http://www.thesamba.com/vw/forum/album_page.php?pic_id=1188580 |
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theDrew Samba Member
Joined: May 17, 2011 Posts: 1155 Location: Camas, WA
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Posted: Wed Jun 15, 2016 12:01 pm Post subject: Re: Fan whine |
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mark tucker wrote: |
butter fly impact...or air rat shit....or breaker bar.all seem to work good, or possiably a battery operated impact like the oned used for construction&screwing |
well I picked up a butteryfly impact and I still can't make it fit back there.
Any other tricks? I'm really trying to avoid pulling the shroud as all my EFI stuff has to shuffled around and is a pain (wayyyyyy tooo complicated ) _________________ Turbo 2276 MS3X build http://www.thesamba.com/vw/forum/viewtopic.php?t=673125
1985 Vanagon Campmobile w/ 2005 EJ25 |
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drumbum68 Samba Member
Joined: October 15, 2010 Posts: 566
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Posted: Wed Jun 15, 2016 5:21 pm Post subject: Re: Fan whine |
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Some wrenches replace gen. stand studs with bolts for this very reason.
Can you do some finageling, like lifting shroud slightly to get alternator and fan out of shroud?
I just pull the engine........I know not fun with duals and full body.
I think I remember having to yank decklid and mounts to get clearance.....a long time ago.................memory fades..................what was I saying? |
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j-dub Samba Member
Joined: November 09, 2003 Posts: 865 Location: Phoenix, AZ
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Posted: Wed Jun 15, 2016 8:10 pm Post subject: Re: Fan whine |
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theDrew wrote: |
Talking John @ ACN, he says its a fan spacing issue. I'll put it apart tonight and see what it is.
So...what do I shim the fan with? |
What guidance did he give you regarding which way to go, closer to the backing plate or closer to the front hole in the fan shroud? _________________ 1957 Oval rag
"POLICE STATION TOILET STOLEN ... Cops have nothing to go on." |
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[email protected] Samba Member
Joined: August 03, 2002 Posts: 12785 Location: Salt Lake City, Utah
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Posted: Wed Jun 15, 2016 9:09 pm Post subject: Re: Fan whine |
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when you see where the paint is rubbed off you'll know. _________________ It's just advice, do whatever you want with it!
Please do NOT send me Private Messages through the Samba PM System (I will not see them). Send me an e-mail to john at aircooled dot net
"Like" our Facebook page at
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and get a 5% off code for use on one order for VW Parts ON OUR PARTS STORE WEBSITE, vwparts.aircooled.net |
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nick wharton2 Samba Member
Joined: November 20, 2003 Posts: 41 Location: Modesto Ca
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Posted: Thu Jun 16, 2016 4:00 pm Post subject: Re: Fan whine |
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Have you tried to push the shroud back and forth while running to see if the noise changes? _________________ cheap, fast, or reliable. Pick two
unless you're sponsored |
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j-dub Samba Member
Joined: November 09, 2003 Posts: 865 Location: Phoenix, AZ
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Posted: Thu Jun 16, 2016 6:20 pm Post subject: Re: Fan whine |
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In my case I know the fan is not rubbing, been through that before and am familiar with the noise. Curious what the OP finds as his solution weather it is in the setup or the fan itself. _________________ 1957 Oval rag
"POLICE STATION TOILET STOLEN ... Cops have nothing to go on." |
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theDrew Samba Member
Joined: May 17, 2011 Posts: 1155 Location: Camas, WA
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Posted: Tue Jun 21, 2016 5:03 am Post subject: Re: Fan whine |
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Lame. I took the whole thing apart, shimmed it and it still sounds the same.
Any other ideas?! _________________ Turbo 2276 MS3X build http://www.thesamba.com/vw/forum/viewtopic.php?t=673125
1985 Vanagon Campmobile w/ 2005 EJ25 |
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rockurob Samba Member
Joined: August 23, 2009 Posts: 358 Location: Okla City, Oklahoma
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theDrew Samba Member
Joined: May 17, 2011 Posts: 1155 Location: Camas, WA
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Posted: Thu Jun 23, 2016 9:20 am Post subject: Re: Fan whine |
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so if I wanted to get rid of this noise......what do I do to the shroud without compromising cooling? (if even possible) _________________ Turbo 2276 MS3X build http://www.thesamba.com/vw/forum/viewtopic.php?t=673125
1985 Vanagon Campmobile w/ 2005 EJ25 |
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SBD Samba Member
Joined: October 24, 2012 Posts: 3269 Location: SOUTH DAKOTA
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Posted: Thu Jun 23, 2016 9:26 am Post subject: Re: Fan whine |
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theDrew wrote: |
so if I wanted to get rid of this noise......what do I do to the shroud without compromising cooling? (if even possible) |
Toss it and replace with an OG shroud? _________________ "Just $99 down and $64 a month for 36 months buys you a brand new Volkswagen Beetle!"
mark tucker wrote: |
I wouldent waste $ or thyme on building a small motor. build it big so it dosent have to work hard.remember it's only as fast as your foot alows it to be unless you build a small turd then it just stinks as it squishes up through your toes when you step on it. |
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