Pretty in Pink, dunno why
Join Date: Feb 2009
Location: Redondo Beach
It's different on the 600 vs the 650.
On the 650, the oil comes from the main galley into a tube that runs up to the head. From there it enters the left intake journal and flows out of the top of the journal through a tube, entering the top of the exhaust cam cap.
The right side journals are lubricated through the cams themselves.
The 600 is the same, except that there is a boss with a banjo fitting, leading to a tube that goes over to the exhaust side. The left intake journal is fed directly from the oil gallery, the right side through the cam.
That boss is still there on the 650 heads, it's just not drilled. It's the boss you saw on your head. You have a 650 head and the exhaust cams were receiving no oil. Had the matching 650 journals been fitted, then there would have been the tube between the two journals and the exhaust cams would have had oil.
It would have been possible, when the 650 head was installed, to have drilled and tapped that boss to accept the banjo and to have fitted the banjo/tube assembly from the old head. I'm not 100% sure on that, as I don't know if the factory still drills the connecting passageway to where the boss is. If not, that wouldn't have been a terribly difficult thing to do.
Tom [email protected]
“Some days I feel like playing it smooth. Some days I feel like playing it like a waffle iron.”
'How' are words so important they cannot be too often used.”
Sting like a butterfly.
Noli Timere Messorem
Last edited by Tom Schmitz; 08-08-2013 at 02:13 PM.
Reason: added a bit about intake feed.