1 tuff z Posted April 21, 2005 Share Posted April 21, 2005 hey all, here's a pic of the back of my 01 ls1 engine. only 20k miles when i pulled it from the trans am ws6 wreck. i'm at a loss as to the grey/white powdery stuff in the middle of the pic as well as the reddish brown granular stuff above that. anyone have any ideas as to what it is or if i even need to worry about it? when i drained the coolant, it was green-i'm assuming it was changed after the car was in the accident [hit right front] but have no way to tell if it was the dextron compatable stuff. here's a link ot the pic... http://www.classiczcars.com/photopost/showgallery.php?cat=500&ppuser=1750 Quote Link to comment Share on other sites More sharing options...
Tim240z Posted April 21, 2005 Share Posted April 21, 2005 Linky No Worky Quote Link to comment Share on other sites More sharing options...
1 tuff z Posted April 21, 2005 Author Share Posted April 21, 2005 tim, i edited my post with a link to an album page. it's the first image. david Quote Link to comment Share on other sites More sharing options...
Tim240z Posted April 21, 2005 Share Posted April 21, 2005 Did the folks that you bought the engine from pressure wash it? Could it be residue from that? Quote Link to comment Share on other sites More sharing options...
1 tuff z Posted April 21, 2005 Author Share Posted April 21, 2005 i really have no way to tell. i'm [i believe] the 4th owner. i powerwashed after the pic was taken-no chemicals, just plain water [found some old posts that the alum doesn't take too kindly to caustic liquids]. my first thought other than a leaking gasket is the fact that when i drained the coolant it was green and i've read gm recommends the dextron stuff which i believe is orange-due to it's more cooperative nature with aluminum. figured i'd ask the experts and if there is a problem, tackle it before i drop in the engine... clutch was hosed and the flywheel needed to be turned-after only 20,044 miles! Quote Link to comment Share on other sites More sharing options...
DaleMX Posted April 23, 2005 Share Posted April 23, 2005 My flywheel was crap too on a 28,000 mile 99 LS1. When I took it off the back cover was covered with clutch dust but no residue like you have on yours. Quote Link to comment Share on other sites More sharing options...
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