I just changed out my gaskets of my OFHG cause it broke my belt in under a year from a leak that I thought was minor. So here's some tips feel free to add:
- change your OFHG seals as soon a you develop a leak
- if you go longer change your belt
- when you change you belt clean the teeth of each pulley
- degrease both pulley's with teeth and pulley's without or the belt will break again or worse
- the lower T10 bolt on the OFHG is hard to get so I removed the connecting radiator hose. Check that it's not internally cracked as you don't want contamination. If you have a lot miles might be a good maintenance item since you're in there. See my images below. A comparable OE hose are like 18 bucks on FCP.
https://www.fcpeuro.com/products/bmw...in-11537580969
(I think mine cracked because oil was seeping into that hose from the outside.you can see the oil on the connection lip in the image.)
Pushing 20 psi I'm sure speeds these problems up.