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-   -   spare motor WTFH issue. #2 rod binds. (http://www.twowheelfix.com/showthread.php?t=10530)

BobTheBiker 09-17-2009 04:30 PM

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.

derf 09-17-2009 04:35 PM

Sounds like out of spec bearings or wrong size bearings

BobTheBiker 09-17-2009 04:48 PM

bearings are original, not replacements, which is why I'm so VERY stumped.

karl_1052 09-17-2009 04:50 PM

Rod bearings in backwards.

BobTheBiker 09-17-2009 05:05 PM

how can they be in backwards? only go in one way with a notch on the cap and rod.

derf 09-17-2009 05:08 PM

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.

BobTheBiker 09-17-2009 05:12 PM

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.

derf 09-17-2009 05:13 PM

is there any way the rods, the crank or the bearings have been damaged? Possibly dropped or hit with something?

karl_1052 09-17-2009 05:24 PM

Is this just the short block or is the head on it too?

BobTheBiker 09-17-2009 05:41 PM

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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