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Old 09-17-2009, 04:30 PM   #1
BobTheBiker
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Default spare motor WTFH issue. #2 rod binds.

This is a completely WTFH issue to me. my S10's spare engine a 2.2L 4 cyl, evidently has the most unique problem I've seen todate. When torqued to the factory specification of 32 lb ft on the rod end cap, that rod WILL NOT move for anything. it should glide smooth as silk on the crank, but instead, it simply will not move for shit. I cant figure this one out.

The motor turned absolutely fine prior to disassembly, then upon reassembly, no new parts, just an inspecton of internals, that rod WILL NOT move when torqued down.
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Old 09-17-2009, 04:35 PM   #2
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Sounds like out of spec bearings or wrong size bearings
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Old 09-17-2009, 04:48 PM   #3
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bearings are original, not replacements, which is why I'm so VERY stumped.
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Old 09-17-2009, 04:50 PM   #4
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Rod bearings in backwards.
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Old 09-17-2009, 05:05 PM   #5
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how can they be in backwards? only go in one way with a notch on the cap and rod.
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Old 09-17-2009, 05:08 PM   #6
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The only other idea I might have is that something is put together wrong. Take it apart and redo it. also check to make sure you put machine oil on all the spinney parts so they get lubed the first time you start it.
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Old 09-17-2009, 05:12 PM   #7
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Thing is I've torn the thing apart, put it together and torn it apart again so many times I could probably do it blindfolded now.

I'm lubricating everything as assemble it too, I'm really anal about that.
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Old 09-17-2009, 05:13 PM   #8
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is there any way the rods, the crank or the bearings have been damaged? Possibly dropped or hit with something?
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Old 09-17-2009, 05:24 PM   #9
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Is this just the short block or is the head on it too?
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Old 09-17-2009, 05:41 PM   #10
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shortblock. near as I can tell I looked at the bearings in it, and they dont both match for some weird reason. I've got a 143D and 143E series bearing on that rod, I'm beginning to believe that the issue is that my bearings are too small and binding it up.
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