2.2L Sonoma Engines

Discussion in 'GM Powertrain' started by JimmyD, Jul 17, 2008.

  1. JimmyD

    JimmyD New Member

    I have a '96 Sonoma w/2.2L I-4 engine, apparently the engine was replaced and spun the #3 main bearing slightly(1/4 turn max). Upon disassembley, and inspection, found out there are several differant engine blocks and crankshafts/bearings for this engine model. It appeares that I have a '98 and up replacement block with a '96 crankshaft installed. The engine builder used '96 bearings in the '98 block and apparently ground the locating tabs off of the center bearing(#3) to make it fit in the block. Can anyone direct me to a source for accurate information about this engine or help me figure out what is needed to replace the crankshaft in this engine as it only has approx. 25,000 on a complete engine and cyl. head rebuild ? Any help will be greatly appreciated.
  2. John W

    John W Rockstar 100 Posts

    If a main turned I would have it line bored and the proper bearings put in. If it isn't line bored and any real pressure was put on the journal just replacing the bearing might not be enough. It wouldn't be too nice if you replaced the bearings and then had to do it all over again in a month or so.

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