hello...
I have some oil leak on this constant pressure valve. oem part number 11111318185. position screew is bellow header on passenger engine side. how to change them without removing headers?

I did mine a couple of months ago. I bought the part, and out of frustration in not being able to unscrew it with normal tools, had to make a tool from a 1/4 in. drive socket.I drilled through the middle at the very end and pressed in a roll pin.
Then you can get under the car with a socket and go for it.

Note: Do not attempt this job unless you are a double-jointed contorsionist and your nerves have been well settled with a half dozen of anything:drink3