Suba_GL_87 Posted October 21, 2012 Share Posted October 21, 2012 1996 EJ25 dohc 208K when i was replace o-ring of fuel injection... somehow got bad noise... VVVVVVVVVVVVVVVVVVV so, im decide pull out the engine and see nothin damage bore and pinions. VVVVVVVVVVVVVVVVVVV i dont understand why and i dont want put engine on it and get noise again. please help me. Link to comment Share on other sites More sharing options...
uniberp Posted October 21, 2012 Share Posted October 21, 2012 Rod knock, even when you spin it by hand I hear it. I think. I belieive it is much more common in these engines than any enthusiast would like you to believe. I hope the rebuild market has figured out how to cost-efficiently build thee bottom ends. It's not something I can spend the time learning. Link to comment Share on other sites More sharing options...
Idasho Posted October 21, 2012 Share Posted October 21, 2012 So what normally causes it? Worn out rod bearings or are the caps stretching? Link to comment Share on other sites More sharing options...
uniberp Posted October 21, 2012 Share Posted October 21, 2012 So what normally causes it? Worn out rod bearings or are the caps stretching? I believe it is normal to reusing rods and caps in rebuilds, with undersize bearings and a crank grind if necessary. Out of round journals are the most likely culprit, IMO. The 2.5 pack quite a punch on a short stroke. Splitting and re-splitting the cases and "plastigage"-ing the journals seems like a half-baked way to rebuild these. It would either take some crazy high tech micrometers or a perfect touch , neither of which I have. With the case bolts threaded into aluminum, the bolt stretch may have to be done merely by expert hand. Link to comment Share on other sites More sharing options...
Suba_GL_87 Posted October 21, 2012 Author Share Posted October 21, 2012 (edited) i found it... Edited October 21, 2012 by Suba_GL_87 Link to comment Share on other sites More sharing options...
Suba_GL_87 Posted October 21, 2012 Author Share Posted October 21, 2012 Hydrolock.... I dont know how to put back. end of tread. Link to comment Share on other sites More sharing options...
nipper Posted October 21, 2012 Share Posted October 21, 2012 ouch Link to comment Share on other sites More sharing options...
Suba_GL_87 Posted October 21, 2012 Author Share Posted October 21, 2012 trouble. +1 ouch Link to comment Share on other sites More sharing options...
uniberp Posted October 21, 2012 Share Posted October 21, 2012 Which cylinder is that? Link to comment Share on other sites More sharing options...
nipper Posted October 21, 2012 Share Posted October 21, 2012 Which cylinder is that? the one making the noise hehehe Link to comment Share on other sites More sharing options...
uniberp Posted October 22, 2012 Share Posted October 22, 2012 the one making the noise hehehe Don't be so sure. That might be the best one in there. Link to comment Share on other sites More sharing options...
Suba_GL_87 Posted October 23, 2012 Author Share Posted October 23, 2012 number 4 Which cylinder is that? Link to comment Share on other sites More sharing options...
Suba_GL_87 Posted October 23, 2012 Author Share Posted October 23, 2012 Just question. if i repair new ONE connecting rod. should be OK with old piston and bearing connecting? before i sell this car. Link to comment Share on other sites More sharing options...
Suba_GL_87 Posted October 24, 2012 Author Share Posted October 24, 2012 i need your answer... Link to comment Share on other sites More sharing options...
Fairtax4me Posted October 25, 2012 Share Posted October 25, 2012 It looks like the piston was hitting the bottom of the bore? The piston is damaged, the block is damaged. It's toast. Drop a 2.2 in it and save yourself some trouble. Link to comment Share on other sites More sharing options...
nipper Posted October 25, 2012 Share Posted October 25, 2012 I'm not seeing an impact mark. Yes you can replace just the one connecting rod/psiton/bearing assembly. Link to comment Share on other sites More sharing options...
Suba_GL_87 Posted October 26, 2012 Author Share Posted October 26, 2012 (edited) mmm, Im still dare get one new rod before installed. I need Try to sell it. only used 50miles of Fel-Pro head gasket. old piston and rod's bearing. 96' Ej25 DOHC is old sh*t... you think Ej22 can fit with automatic from Ej25? doubtfully...? Edited October 26, 2012 by Suba_GL_87 Link to comment Share on other sites More sharing options...
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