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#1
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Rear bearing autopsy
After taking the rear bearing apart I got to see why it was making so much noise. Honestly the thing was roaring at 30 mph.
This is the outter race of the old bearing: My guess is that water got into the bearing and rusted out the inside. A testament to how long to car sat on a lot/in someone's driveway. Some of the rollers are also completely roughed up. There's general small scratches and nicks all around the inside of the race. Once my new one arrives it'll all go back together with new nuts and bolts, all of the rust polished off the knuckle and the knuckle painted. I'm worried that I'm going to be speeding though. The bearing was sort of my audio speedometer. Without the noise I might end up going a bit faster than I mean to.
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Chris 92 Ebony Mica LS-L "A Rolling Restoration": 223,250 KM - Sleeping 2007 STi 6MT, Stance GR+ coilovers, PWR Rad, JDM hood badge, svxfiles 6000K HIDs, JDM Clear Corners, $15/15 min mod, $20/20 min mod, Energy Swaybar Bushings, Hella Supertones horns, Gold STi BBS rims, Group A lightweight crank pulley, A/C system removed, Custom header-back exhaust, Hybrid carbon/metal rear sway bar, restored headlights with CCFL halos 2008 Subaru Legacy Spec B - Diamond Grey Metallic - Sold 2020 Ram 1500 Longhorn - Red Pearl |
#2
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Quote: Crazy_pilot: After taking the rear bearing apart I got to see why it was making so much noise. Honestly the thing was roaring at 30 mph.
Looks like fairly normal bearing wear. I bet the rough spot was on the bottom, where the loads are the highest. Without the noise I might end up going a bit faster than I mean to.:That's easily done! This morning on my way home I nearly sped past my road. I was going 15mph faster that I thought!
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[SIGPIC]http://www.subaru-svx.net/forum/image.php?type=sigpic&userid=5569&dateline=1207440 507[/SIGPIC] Naught but by the grace of God "42" Current Stable By Age:'89 Subaru XT6 Silver "Audrey" as in Hepburn '96 SVX LSi #767Brilliant Red "Lil Red" Now on the front burner. Looking for a totalled, but running parts car. |
#3
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That is not normal wear. That's what they always look like when i've seen them, which is a particular sort of bearing failure (which I can't recall the name of). What we need to do is figure out why these failures occur. If it is water then we have a seal problem like the legacys did back in the day.
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2007 GS 450h-Active Stabilizer/Radar cruise 1994 L Blue 3.70 VTD ASE Master Automobile ASE Advanced Level Specialist Toyota Master Diagnostic Technician (former life) |
#4
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I misspoke. It's a normal failure. The most stressed place on the bearing is pitted from transfer of material. The rollers/or ballbearings will show a similar amount of wear.
I work on industrial equpment, and change out failed bearings on a nearly daily basis. Just be glad that the inner races don't sieze to the rollers, the result being that it eats the hub. This is the most common failure at work, siezed bearings take out the shaft they're supporting.
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[SIGPIC]http://www.subaru-svx.net/forum/image.php?type=sigpic&userid=5569&dateline=1207440 507[/SIGPIC] Naught but by the grace of God "42" Current Stable By Age:'89 Subaru XT6 Silver "Audrey" as in Hepburn '96 SVX LSi #767Brilliant Red "Lil Red" Now on the front burner. Looking for a totalled, but running parts car. |
#5
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I love it when you take out a bearing at work to replace it and the whole thing falls apart. It's so nice when it's not your svx
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Matt Locker Link 2015 BRZ Limited 6MT 92 Ebony LS-L ECUtune Stage2av1, Z32 MAF, 370cc injectors, TomsSVX intake, BontragerWorks 22mm RSB #003, HID Hi and Lo beams, OT endlink and bushing mods, PWR Aluminum radiator, Harvey's QC shift kit, 2.5" flowmaster 80 exhaust, 17" Michelin Pilot Sport A/S, Poly sway bar bushings, Slotted Bradi rotors, AFBeefcake powdercoated calipers, 97 grill, and a huge set of air horns. 300,000 miles and counting 92 Ebony LS-L. ecutune stage1v4, motorsport 1pc pulley. Garage Queen - sold to Dad in upstate NY 155,000 miles 19 Subaru Ascent Premium - -Hers !. 89 DL 4x4 little red wagon - a.k.a. The immortal suby. 275k R.I.P. |
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