im finishing up my b20 block and when i went to put on the flywheel. i noticed im missing something. its right above the main seal. looks like something should be screwed in there. im going to take pics and post them.

 

here is the pic. See the hole above where the flywheel bolts go? something screws in there correct? if so i dont have it and i need to find out what it is so i can get it.

 

That hole gets a plug its very important.

 

yeah, what type?? Can i just go the any old hardware store and get a plug for it? Or is it a special type of plug?

 

bump

 

you might be able to order that plug from the honda dealer.......

 

is probable a coolant dain plug.
i know that b16/b18 have that plug infont of the engine.

 

yeah imma have to go to honda and order it. thanks guys

 

That is the oil passage plug, and yes you need it.
You cannot just go to any hardware store and buy a plug, you need the correct thread pitch and size.

http://www.hondaautomotiveparts.com will have it

 

yep its just a bolt basically,
with very fine threads.
very similar to the coolant drain bolt on the front of ur block.