fatjoe10

Accidentally posted that while the mobile was in my pocket.

To answer Slow, well then I'm in good shape; thank you.

Charper732

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.

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

Soviet

I believe they are bearing sizes based on the crank journal dimensions.

clio

Grab the Honda workshop manual and have a read through the engine chapter

jaymz

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.

joeytai

Thank you Jaymz!

fatjoe10

Well I was beat to this lol.. Good luck!

jaymz

Sorry lol. This was right up my alley as this is my day job. Honda Engine Plant final repair.

joeytai

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.