I'm in the begining stages of building a turbo Ls/vtec. I was just wondering if anyone knew anything about the oil control jet in the 1986-1994 Integra 1.8L engines. I know that it is this little plug located in deck of the cyl. block. The purpose of this "plug" for those of you who don't know is to meter a certain amount of engine oil to the cyl. head components. I have done a bit of research on this oil control jet and according to AERA (Automotive Engine Rebuilders Association) if this plug is lost or removed during removal of the cyl. head, it will cause excessive amounts of engine oil to enter the cyl. head. This additional amount of oil will then collect under the valve cover and overwhelm the valve stem seals. The oil may also enter the PCV system if the level becomes high enough. In either case, oil will enter the combustion process or the exhaust system causing oil loss.

Anyway, my question is, what do I do with this "plug" for an Ls/Vtec setup. I would assume that I would obviously want to keep it in the block deck. But when building an Ls/Vtec setup you need to run an oil feed line to the new Vtec head wouldnt this in-turn cause the same oil consumption problem. I mean I dont know thats why I'am asking. If anyone knows what I'm talking about or has any input please lemme know.

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bumpin for an answer.

 

bump.

 

anyone?

 

It doesn't effect anything in a Ls/Vtec. There's thousands of Ls/vtec's out there with no such problems. By modifying the oil feed line you are just rerouting the oil supply and not flooding the head with oil. Its the same amount of oil its just a different path. Plus there are about 5 holes in the head for the oil to return to the oil pan. Almost impossible to get oil stuck in the head.