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Join Date: Apr 2005
Location: Ontario, Canada
Posts: 4,554
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loose axle nut vs. bad bearing
so what would the sound difference between a bad bearing and a loose axle nut be? I seem to remember Hugh a while ago saying a loose axle nut would have a "wobble" sound...
this is really just a pointless question, i'm taking the wheel off tomorrow anyway to look...
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Kyle 2008 Mini Cooper // '83 Porsche 944 // '01 Mazda Protege [sold] // "Never break more than you fix!" - SoCal Driver |
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11-14-2007, 08:08 PM
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My hearing is kind of shot after being in the service so I couldn't say. I see yours is an 83 so if the cotter pin is missing or gone, I would tighten the nut , put in a new pin, & drive to see if there is still noise.
drew1
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drew1 wife has 924 turbo |
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11-15-2007, 02:09 AM
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Quote:
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1993 964 C2 still makes me smile Retired and work as needed as a pain in the **s. |
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11-15-2007, 02:43 AM
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Certified Rennwerker
Join Date: Oct 2002
Location: Kansas
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If the nut is loose the bearings will not be seated so you will get a "mixed" symptom. Torque the nut then go for a drive, the bearings if shot will most likely cause a vibration at a non prescribed speed depending on how shot the bearing is and the type of bearing on it. 2 pc has races the one pc is a different animal. The other symptom is not by sound but by wobble. The wobble should be noticed driving and up in the air by tweeking the wheel...at proper torque.
Dal
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PCA " I've been everywhere, done everything......just can't remember any of it!" 
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11-15-2007, 03:09 AM
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Let's go shooting.
Join Date: Feb 2003
Location: United Kingdom.
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Quote:
If it's just a low grumbling noise it's most likely just a bearing. The one on the other axle won't be far behind it either. Those nuts are on pretty tight and have a cotter pin to lock up the nut - I'd be surprised if it's loose.
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1983 944 Lux (manual) 2.5 litre 8 valve na and no pas 1991 944 (automatic) 2.7 litre 16 valve na and pas "I have only five words for you: From my cold, dead hands." Last edited by Dark Skies; 11-15-2007 at 05:35 AM.. |
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11-15-2007, 05:33 AM
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Well if you end up needing a axle stub I have a new one including the castle nut. Another thing you may have is loose lugs which will give a similiar result. I am sure you have your nuts tight but thought to mention it anyway!
 Dal
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11-15-2007, 05:45 AM
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my nuts are always the first thing i check.... no matter the scenario
 i'm on my way out.. i did the other side of the car 2 years ago and it's still holding up great, so at least i know what i'm looking at in there... thanks guys. and the sound i'm hearing is more like a "wubwubwubwubwubwub" (if that makes any sense) that is constant, at any speed, with the speed of the wheel.... sound doesn't get better or worse in hard cornering in either direction. when the other bearing went, it was akin to someone putting a playing card in the spokes of a bike.. this doesn't sound like that - it's actually softer sounding... anywho, we'll see..
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Kyle 2008 Mini Cooper // '83 Porsche 944 // '01 Mazda Protege [sold] // "Never break more than you fix!" - SoCal Driver |
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11-15-2007, 09:34 AM
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911
