Engine: JDM B16A First Gen, Stamped '91 and bought from HMO

Alright folks, when this engine was in my crx and started to leak oil i took no chances. i used it as a reason to change all the gaskets and change my water/oil pump but STILL oil was leaking. So I decided to take the engine out of the car and while looking around i noticed a little oil hanging around near this hex bolt:



I used a turkey baster to drip water on the area to see where it would drip and sure enough the water leaked behind the oil pump and dropped down all the way to the oil pan gasket giving the impression that the problem was there...

Can anyone tell me what this Hex socket is for and whether this can be prone to leaks. There was no gasket and it was screwed on pretty tight but it came off without too much of a struggle..

 

Wrong forum this is for 7th gen civc's.

 

am not sure of the purpose of that bolt bt use some sealing tape or honda bond that should keep it from leaking

 

anyone else?

 

its one of the holes for the oil galley. machine shops are notoriously bad for leaving those things loose when they do work. replace the plug with a new one if it will make you feel better, and apply sealant (just a little). Those things should be pretty damn tight and tough to get out btw.