OHC oiling


#1

my 02 vue is V6 OHC. i noticed 1 bolt that looked like cyl head bolt but it turns out it is an oiling port for top of head. both front/rear heads have it. but only rear head bolt sprays oil when u crank motor. do most OHC cars just pressurize the oil to the cam journals alone? and not send another stream to top of cyl head?


#2

red arrow shows 1 bolt. about 2" below that bolt is another bolt. both cam banks are separated by valve cover partitions.


#3

So, it appears this “spray” is for misting oil into the cam area for cam-bucket lubrication? If so, I’d think both banks would have this feature. Can you remove this bolt to see if it’s designed as a spray nozzle?

I would say “yes.” (Assume you mean, “…and not mist oil separately into the cam area.”)