S2000 Under The Hood S2000 Technical and Mechanical discussions.

Spun a rod bearing..

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Old 11-10-2011, 01:47 PM
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UPDATE!
Finally decided to start crankin on the ol motor.. never ripped apart an engine that looked like this.. any helpful insight of why things they are would be appreciated.. tell me what needs to be replaced and whats re-useable.

OO ya.. i spun piston bearing #2 from the front..
here is piston #2

THE OTHER SIDE:




Old 11-10-2011, 01:52 PM
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SEE the side marks, this looks like where the piston was rubbing with no oil?










the piston tops were blackend and charred real bad.. bad or good? no clue..

DOES THIS HOLE LOOK OVAL to you?? this is 2nd piston wall

Old 11-10-2011, 02:00 PM
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now here are the other 3 pistons. there is a note card with the piston # in the background.. they all look the same..





Old 11-10-2011, 02:01 PM
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Old 11-10-2011, 02:01 PM
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Old 11-10-2011, 02:05 PM
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here are pics of the head.. random oil in the intake ports??? soo confusing.. OOO WHEN I REMOVED MY OIL PAN.. THERE WERE TINY BITS OF METAL IN IT.. THEN, I REMOVED MY VTEC SILANOID AND THE SCREEN WAS HALF FILLED WITH METAL SHAVINGS..





Old 11-10-2011, 02:07 PM
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Old 11-10-2011, 02:08 PM
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EXHAUST SIDE..


Old 11-10-2011, 02:12 PM
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When im looking down on my block.. the two middle sleeves look oval compared to the two outer sleeves.. as in piston 2,3 are oval and 1,4 are circular..




Piston wall 4


piston wall 3


piston wall 2


piston wall 1
guess i dont have that pic..
Old 11-11-2011, 12:20 PM
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It may be possible to hone the cylinders. Only a shop the specializes in FRM cylinders can do so.

When you spin a bearing real bad, it allows the piston to reach the cylinder head and hit it. It mushrooms the top of the piston, and causes those marks you see on the cylinder wall. it is not from no oil.


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