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In the middle of a rebuild need HELP!

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Old Oct 29, 2003 | 05:08 PM
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mattb16a1civic's Avatar
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From: Anderson, IN, USA
Default In the middle of a rebuild need HELP!

Once again im here with a question. I have a b16a using 99si rod bearings the rod bearing that came out of the engine is physically wider by about a 1/16 bigger than the old ones, I was wondering if the bearing would still work even though the rod journal is sticking out over each edge.
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Old Oct 29, 2003 | 07:09 PM
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Default Re: In the middle of a rebuild need HELP! (mattb16a1civic)

Maybe somebody used P72 rod bearings on that motor, or maybe that's just the way it came from Honda.

The P72 rod bearing I have is .684" in width and fits square on the ITR crank's rod journal without riding up on the fillets.

The 1321x-P30-004 rod bearing I have is .762" in width and rides up on ITR crank's fillets a little.

Check to see how squarely each one fits onto a rod journal without riding up on the fillets.
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Old Oct 30, 2003 | 01:26 PM
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it actually fits in flush and the lock on the edge of the bearings line up straight. the bearing doesnt sit any diff than the other one just is narrower, just kinda wondering if it is safe to run it this way. wondering about heat, wear variations on the crank and also on the journal on the rod
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Old Oct 30, 2003 | 02:31 PM
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Default Re: (mattb16a1civic)

What's the part number of the rod bearings you're going to use? Something doesn't sound right.

As far as I can tell you, it probably wouldn't cause a significant problem. The conrod's big-end end play isn't determined by the bearing width, so the rod isn't going to walk from side-to-side if you did use the smaller bearing.

You do lose a little bit of cushioning b/c of the decrease in surface area.

I haven't done much B16 engine building stuff, so you may wanna run it by Steve briefly to see if he has a quick answer for you. He might know.
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Old Oct 30, 2003 | 02:36 PM
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i just went out and put two of the halves together
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Old Oct 30, 2003 | 02:38 PM
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damnit hit enter, anyways as i was saying just put the two together, I deff know its not a b16 bearing not only is it narrow they dont line up so i found my packages(should have known to do this from the beginning since they messed up the ring order as well) seems as though there d series bearings prolly explain alot.
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Old Oct 30, 2003 | 02:44 PM
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Default Re: (mattb16a1civic)

Wow. There you have it then.

I hate waiting for parts.

Gimme the run-down some time on the build. I'm interested in hearing what little tricks and doo-dads are going into the motor.
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Old Oct 30, 2003 | 02:56 PM
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yea this will be the 4th trip to return parts and get correct ones its all becuase of the skinny kuy with a mustache, hes a dick im gonna file a complaint as soon as I find out what his name is, Ive never had a problem with penske honda on 96th before, just never deal with him again. hopefully my ctr cams and my warranty crower stuff will be in on wed.
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