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Wheel Bearing Seals - 1996 Legacy Outback (2.5)
Posted 12 May 2008 - 03:06 PM
Posted 12 May 2008 - 03:56 PM
now to confuse you - the outer seal in the inside of the hub is a dust seal but it's really the innermost seal. The seal on the outside of the hub is the same as the inner seal in the inside of the housing
There's GOT to be a Dr Seuss rhyme in here somewhere...
--------------------------------- <-- cross section looking thru the housing - this would be the axle centerline.
! dust seal
< or > grease seal
___ the bearing
Who's on first? Ida Know - THIRD BASE!!
Posted 12 May 2008 - 04:50 PM
Posted 12 May 2008 - 04:56 PM
Posted 13 May 2008 - 09:30 AM
Posted 13 May 2008 - 09:37 AM
I've only done rears but I'm about to get into a front axle replacement on my IMP.
Maybe a rear bearing or 2 as well - getting a bit of whine
Generally I don't change seals unless they show leakage though unless I have to pull them (like for a bearing replacement)
Looks like the subyparts breakouts show 2 front, 3 rear (Legacy and IMP use the same housing, bearings, seals and hubs)
Posted 13 May 2008 - 12:45 PM
Posted 13 May 2008 - 01:51 PM
isn't it true that the rear bearings use 3 seals, and the fronts use only 2? That's what I seem to see when I check my reference manuals.
This is the setup on my 99 Forester. There are three seals per wheel in the rear and 2 per wheel in the front. "Inner" and "outer" refers to the orientation with respect to the bearing. Somtimes inner seal #1 (in the ESM diagram) is referred to as an intermediate seal, and inner seal #2, as AE said, is just a dust seal.
There's no dust seal in the front, because a dust shield is already pressed onto the outer cv joint. It would be simpler and better if the rear half shafts had a similar, integrated dust shield.
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