B Series Vtec Head

just bought this head it was fully disassembled. I dont know what goes in this hole can someone tell me. intake side under the cam by dizzy.

http://www.acuraautomotiveparts.org/acura/jsp/mws/catimgs/13st701_e1001.png

I dont think anything goes in that hole. I would guess it’s a oil return. Does that hole go all the way through the head? Is it threaded?

its threaded no it dont go all the way threw

---------- Post added at 11:27 AM ---------- Previous post was at 11:26 AM ----------

ya i looked at that diagram and the fsm manual dont show anything about it

It being threaded makes me think you will need to get a small copper pipe plug. That’s probably the same passage that the vtec solenoid works off of and if so it needs to be pressurized.

same thing i thought but wasent sure. didnt want to put one in there and mess something up

Trying to confirm this for you. I can look on my head this week

ok thanks putting the head on by friday

off the top of my head and before reading any replies, my honda brain said threaded pipe plug. Then reading further into the thread I’m feeling pretty sure it is a threaded pipe plug.

ok thats two people so im gunna go with that thanks