Ok, I have tore down and rebuilt a B18B with the intentions of doing an LSVtec swap. I plugged the head oil supply, etc etc… and just finished putting the head on the block. Now, I was at a friends’ place and was checking out his block, and found something strange.
B17:
This is my buddies B17. See the plug/Oil Orifice that is circled? I looked the part up on a Honda Parts Database, and found that it is used in:
1990-2001 Integra
1999-2000 Civic Si
1997-2000 CRV
1994-1997 Del Sol
But when I took my B18 apart, that Oil Orifice was NOT present.
B18:
Now, my engine is already together with the head installed… My question is, is this an important enough part to warrant taking the engine apart again to buy/install? Or would it run alright without? I’m kinda confused and worried as to why my engine didn’t have that installed in the first place, but it ran fine without it.
I assume this unit just regulates the amount of oil being pushed into the head. I will be running the GE lsvtec sandwich plate and will have the oil line supplied straight to the head, so there shouldn’t be an issue of lack-of-oil, but could there be an issue of over-supply of oil? I have no idea, I’m just tossing out scenarios as they come to me, but I’m really stressing it.
Anyone?! Opinions and advice would be GREATLY appreciated.
Not sure on b-series its the opposite on d-series. When i did my mini me swap on my old eg that plug is only in the non vtec engines and you have to take it out when you put a vtec head on it for the vtec to work. But I’m not sure if the is the same case on b-series. The reason you had to do that on the d-series is because on the vtec engines it was located in the head but on the non vtec it was in the block
I am not sure about the implications of leaving that out. My B18B1 has one in that location. And so does my spare B17 block. I will look at my other 3 bare blocks and see if it is in those as well.
forget about the d series comment. only reason for that in a d series is that it uses that oil feed to control the pressure switch and LMA in a d series. thus u can’t run a “restrictor” there
yes ur b18a/b needs it. i would say yes it does warrant to install it. it’s used to control oil pressure to the head. without it u WILL lose oil pressure. now we all know what that does.
basically:
it controls the amount of oil that goes into the cylinder head. without it you can f*ck up some serious sh!t. make sure that it’s installed before you slap the head on. in your case after u tear it apart again.
oh, they are like 20 bucks brand new from honda with a new o-ring or a few bucks for just the o-ring. u can either remove it with a pick or do what i do. use a machine screw that barely catches it’s threads un the hole; then just pull up. once u see it u will see why it wont hurt it.
hope u haven’t started the engine up already. good luck!
i know. lose of oil pressure, to much oil to the head now without the orifice (think of it as a oil restrictor to the head), spun bearings due to the drop in oil pressure, improper oiling, etc.
it’s not a part honda added just for “fun” lol
i personally can’t see it lasting more then a few minutes idling; never mind driving it
Alright, thanks for the replies and all. I suppose the engine is comin apart again. No, I didn’t start the engine… Its still on a stand in my garage. And yea, the part is really cheap from Honda… I think like 6-7 bucks with a $2 o-ring…
[QUOTE=BBP-GS DA;1832182]n u can either remove it with a pick or do what i do. use a machine screw that barely catches it’s threads un the hole; then just pull up. once u see it u will see why it wont hurt it.
hope u haven’t started the engine up already. good luck![/QUOTE]
