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02-03-2013, 09:40 PM
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#1 |
  Drives: yaris hatch 07 640K original m Join Date: Mar 2007
Location: usa
Posts: 285
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crank grinding
little off topic
when you watch the videos of crankshaft grinding they usually just show the main journals being ground. I couldnt find one where the piston journals were being turned. Are the piston journals usually stay in decent shape so they dont have to be ground?? I mean if the rod bearings take all the abuse...Are they as critical as the main journals?? |
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02-05-2013, 11:05 PM
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#2 |
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Drives: 2009 5-door, 5-speed Join Date: Sep 2011
Location: White Rock BC
Posts: 687
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http://www.youtube.com/watch?v=y0NjkT0mqg0
Happy?  Yes the connecting rod journals need to be ground, and are as important (in not more so). If you over-rev an engine unloaded it is typically the conn rod bearings that will spin. Cheers. |
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02-06-2013, 06:18 AM
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#3 |
Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008
Location: nj
Posts: 4,790
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Not unusual for the mains to be fine and just the rods needing attention.
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