Maintenance and Upkeep Discussion HHR maintenance tips ranging from oil change intervals to brake pads and everything in between.

timing Chain 2.2 Ecotech

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Old 09-08-2016, 07:46 PM
  #11  
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Have not started yet. Just putting the Engine back in the Car. I will report when it is tested. Thanks.
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Old 09-08-2016, 10:30 PM
  #12  
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Shouldn't be much play between the two camshafts. I just recently did a rebuild of a 2.2 that jumped and bent 3 intake valves. Once the marks were lined up I double checked by rotating about 30 revolutions to bring the marks back together. Takes a while, but I wanted to insure I wasn't going up have any collisions during startup.

Got about 5k on it now. Good luck, double check everything and keep us up to update.

PS- if just the engine is out. You'll save some headaches by removing the harmonic balancer. Much easier to slip the engine back onto the trans. Unless you went out the bottom with the trans, in that case just drop the car back on it!

Some will argue that it's a one time use bolt. That's fine, I have done this to 4 HHRs. Haven't replaced it yet, fingers crossed I suppose. I found it impossible to drop the engine back in with the balancer on.
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Old 09-09-2016, 05:10 PM
  #13  
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Originally Posted by Dbeluscak
Some will argue that it's a one time use bolt. That's fine, I have done this to 4 HHRs. Haven't replaced it yet, fingers crossed I suppose. I found it impossible to drop the engine back in with the balancer on.
Do you reuse the camshaft sprocket bolts too?
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Old 09-09-2016, 05:30 PM
  #14  
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The "book" says to replace almost all engine bolts. But none that I can find are actually listed as "stretch" bolts; even the head bolts. They are awfully cheap to be "special".

Strange thing; the LCA bolt that calls for 180 degrees after the torque does not call for a new bolt.
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Old 09-11-2016, 01:52 PM
  #15  
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BTW, I started the Car this morning and it runs like a Champ. Thanks for your help all.
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