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Jim Bear
Samba Member
Joined: March 25, 2006
Posts: 670
Location: Watkinsville, GA
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 Posted: Thu Aug 14, 2014 8:37 am Post subject: "Whirrr" noise from rear end |
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When I am driving I am hearing a high pitched "whirrr" noise coming from the back, seems like the passenger side. I get it at all speeds, but almost to high to hear at higher speeds. It does not appear to be related to the brakes. It does not sound like a bearing, at least not at the grinding stage per Notchboy's video. Any thoughts? Thanks in advance.
I will try to get the missus to drive it around the hood this weekend while I dangle from the sliding door and listen.
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'85 Vanagon Westy - George In the Stable 2020-?/'74 Weekender - Ophelia In the Stable 2007- ?/'69 Beetle Convertible - SOLD 2017-2020/'67 Beetle - September SOLD 2013-2016  /'67 SO42 Westy - Sage SOLD 1996-2001 /'69 Transporter - Baby Blue SOLD 1995-1995/'72 Westy - Nelly - SOLD 1990-1995--STOP FRACKING |
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 52304
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| Posted: Thu Aug 14, 2014 9:00 am Post subject: |
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Bearing noises start out pretty quietly and then get louder with time. Rear wheel bearings tend to make noise pretty constantly, and may be noisier when turning one way than another.
Tranny gears and bearing can make a variety of whirling noises. Some more load dependent than others. Alternator bearings are a common source of fairly constant whirling noises. |
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Lil Lulu
Samba Member
Joined: December 08, 2007
Posts: 1790
Location: Mouth of the Columbia
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| Posted: Thu Aug 14, 2014 9:32 am Post subject: |
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When I first got my bus, I heard a whine from the rear and found it to be the alternator. The belt was tight as a flea's ass stretched over a rainbarrel. Toasted bearing.
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williamM
Samba Member
Joined: August 07, 2008
Posts: 4342
Location: southwest Arizona
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| Posted: Thu Aug 14, 2014 9:41 am Post subject: |
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I had a T4 with duct tape round the cooling boot to the alt that came loose and was riding round making noise.-
Best way is to stand on back bumper with wife driving to hear the noise --works all the way up to 65 mph and then you lose your grip on the air intake.-
Don't ask how I know that.  s0 maybe not the BEST waay
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opinion untempered by fact is ignorance.
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