Sonicfrog Posted April 3, 2011 Share Posted April 3, 2011 So, I have the engine out of the 83 Silver Brat. I take off the fiywheel and stare do a double take... Because there are TWO rear main seals nestled on the crankshaft.... What's Up With This???????? Quote Link to comment Share on other sites More sharing options...
AWD TURBO! Posted April 3, 2011 Share Posted April 3, 2011 photo?? Quote Link to comment Share on other sites More sharing options...
Sonicfrog Posted April 3, 2011 Author Share Posted April 3, 2011 (edited) Here's the pic Edited April 3, 2011 by Sonicfrog Quote Link to comment Share on other sites More sharing options...
GLCraig Posted April 3, 2011 Share Posted April 3, 2011 The hub that the flywheel is bolted to, is pressed on the crankshaft, so Subaru used two seals. Quote Link to comment Share on other sites More sharing options...
Sonicfrog Posted April 4, 2011 Author Share Posted April 4, 2011 Mystery Solved. It's not a main seal... It's an o-ring... An extremely flattened o-ring! Quote Link to comment Share on other sites More sharing options...
ShawnW Posted April 4, 2011 Share Posted April 4, 2011 Get a new one at the dealer 413967100. You will see yours is actually in pretty good condition. Quote Link to comment Share on other sites More sharing options...
markjw Posted April 4, 2011 Share Posted April 4, 2011 Whats the purpose of that o-ring? Just wondering...I think I have put flywheels on without that o-ring in place. Quote Link to comment Share on other sites More sharing options...
markjw Posted April 4, 2011 Share Posted April 4, 2011 Doh...Never mind. I just re read GLCraig's post. That explains it. Quote Link to comment Share on other sites More sharing options...
ShawnW Posted April 5, 2011 Share Posted April 5, 2011 Whats the purpose of that o-ring? Just wondering...I think I have put flywheels on without that o-ring in place. I think its a machining change but am not sure. Most I have seen with it had hydraulic lifters but I haven't taken the time recently to do a verification of that. Quote Link to comment Share on other sites More sharing options...
nickolai Posted April 5, 2011 Share Posted April 5, 2011 I've taken apart two EA81s with solid lifters that had that O-ring. I'm not sure, but I think they all have it. Quote Link to comment Share on other sites More sharing options...
bheinen74 Posted April 5, 2011 Share Posted April 5, 2011 My 85 Brat with Hydro lifters did have the reddish orange seal, and i replaced mine with new it had a tear in it. Quote Link to comment Share on other sites More sharing options...
monstaru Posted April 6, 2011 Share Posted April 6, 2011 almost all i have seen have had it.......cheers, b Quote Link to comment Share on other sites More sharing options...
Idasho Posted April 6, 2011 Share Posted April 6, 2011 I think its a machining change but am not sure. Most I have seen with it had hydraulic lifters but I haven't taken the time recently to do a verification of that. Is there any way to tell if a motor has hydro lifters besides popping the valve covers? My EA81 '84 GL has the flywheel O-ring, but I was under the impression it had solid lifters with the flywheel o-ring removed: Quote Link to comment Share on other sites More sharing options...
bheinen74 Posted April 6, 2011 Share Posted April 6, 2011 hydro motor has stickers on the valve covers. sticker says, do not adjust valves. Quote Link to comment Share on other sites More sharing options...
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