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2G Crankwalk/thrust bearing

SynthRocker

Proven Member
21
1
Feb 28, 2005
Worcester, Massachuseftts
Got a 95 tsi awd with 125k measured end play it was .004/.005. Got the cradle off and the thrust bearing has some wear. I don’t know what would be normal or excessive on these… I know it shouldn’t be there but.. ya know… gotta go with what ya got haha. Pictures attached, how bad does that look for 125k

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SynthRocker

Proven Member
21
1
Feb 28, 2005
Worcester, Massachuseftts
.005" is perfectly normal. There has to be some clearance there for lubrication.
Yeah.. I knew the measurement was within tolerance I was more concerned with what I thought was 4 gouges in the bearing… turns out they’re suppose to be there 😂😂 some form of oil channels I presume
 

waltah

Proven Member
369
153
Mar 2, 2011
fairfield, Virginia
Okay, I'll bite. With the understanding that following comment(s) are from a guy who has never before looked at an Eclipse bearing ...

Isn't this a pretty classic worn out bearing on the (visible) journal face? It appears to be the usual modern aluminized surface -- look up by the parting line -- but it's deeply scored and the aluminum surface is mostly gone elsewhere. For 125k I'd say someone saved a lot on motor oil and filters.

If the jounals aren't too bad might replace the set with standard size bearings or perhaps 0.001 undersize if those are available.

Experts please inform me on this!
 

1990TSIAWDTALON

Moderator
9,270
5,064
Nov 14, 2013
Independence, Kansas
Run ZZDP in your oil to help reduce wear on high thrust surfaces (crank/turbo thrust plate are about the only 2 in a 4 g motor). I HAVE to run it in the old school motors I build for the cam lobes but I've never heard of a person using it to combat crankwalk and turbo thrust plate wear but would be interesting. Its something I use on the reg for added protection.
 
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