HI got and ej25 and was gonna sell it but looking to rebuild it, the block has an oil way for a one way valve. It is located behind the oil separator cover, to the left of the shoulder pin hole. my old one has a ball bearing in. my new block the oil way is empty cant see it on parts list not sure how to remove it. Any help gratefully received cheers.

Rich

 

Drill and tap the oil gallery on your new block to take a blanking plug as you wont get the peened in ball bearing ( not a one way valve ) out of your old crankcase oil gallery.
Think I tapped out to 1/8NPT on the last one I came across.

 

thanks so much so you think its just a blanking ...why ball bearing ? regards Rich