S2000 Under The Hood S2000 Technical and Mechanical discussions.

F22c Rebuild

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Old Jun 7, 2019 | 02:01 PM
  #11  
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Accidentally posted that while the mobile was in my pocket.

To answer Slow, well then I'm in good shape; thank you.
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Old Jun 8, 2019 | 08:20 AM
  #12  
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Originally Posted by Slowcrash_101
The main bearing clearance at .0002" is what is recommended to maintain oil pressure. The reasoning behind the "looser" clearance is that more oil flow cools better, so you are attempting to maximize oil flow, and cooling while still maintaining oil pressure.
I sure hope you got your decimal point in the wrong place, otherwise that would result in a trashed crankshaft.

And the reason for looser clearances is to allow for distortion of the part under load without having the journal touch the bearing.

Last edited by Charper732; Jun 8, 2019 at 08:25 AM.
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Old Jul 23, 2020 | 08:13 AM
  #13  
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Hey Fatjoe. Please educate me on what is DDDDD for the block bores and 44443 for the crank. I'm planning to do a rebuilt soon also.

Thank advance for the info.

Joey
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Old Jul 23, 2020 | 08:14 AM
  #14  
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Originally Posted by joeytai
Hey Fatjoe. Please educate me on what is DDDDD for the block bores and 44443 for the crank. I'm planning to do a rebuilt soon also.

Thank advance for the info.

Joey
I believe they are bearing sizes based on the crank journal dimensions.
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Old Jul 23, 2020 | 03:36 PM
  #15  
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Originally Posted by joeytai
Hey Fatjoe. Please educate me on what is DDDDD for the block bores and 44443 for the crank. I'm planning to do a rebuilt soon also.

Thank advance for the info.

Joey
Grab the Honda workshop manual and have a read through the engine chapter
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Old Jul 23, 2020 | 10:17 PM
  #16  
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The letters are stamped on the block (you can see these from under the car on the exhaust side). The numbers are on the end of the crankshaft. 5 letters and 5 numbers are to select the bearings for the mains. There are also 4 letters on the crank and they correspond with the numbers on the conrods to select bearings for rod journals.
Bore select are stamped on top of the block (you will find them when the head is removed). Those 4 letter determine the bore sizes to select piston sizes. I believe there are only 2 sizes of OEM pistons A and B size.

Last edited by jaymz; Jul 23, 2020 at 10:25 PM.
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Old Jul 24, 2020 | 05:38 AM
  #17  
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Thank you Jaymz!
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Old Jul 24, 2020 | 05:56 AM
  #18  
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Well I was beat to this lol.. Good luck!
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Old Jul 24, 2020 | 09:37 PM
  #19  
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Originally Posted by fatjoe10
Well I was beat to this lol.. Good luck!
Sorry lol. This was right up my alley as this is my day job. Honda Engine Plant final repair.
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Old Jul 24, 2020 | 11:15 PM
  #20  
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Thanks Jaymz for the info! I understand the 5 codes stamped on the crank is for the 5 main journals and the four letters (AAAA) crank bore code. The 5 crank bore codes also stamp on the engine block? They are suppose to be the same correct? It is confusing cause your info mention CCCCC and on the crank is 11111.
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