Dave's new 1969 mild GL build...

[Wally]

Nice touch on the black hose and connections!

[effvee]

Good morning,
Slow me, I noticed the small oil holes on your push rods. I thought the push rods to some extent rotate. What is the benefit of those oil holes?

[owdlvr]

Originally Posted by effvee

Good morning,
Slow me, I noticed the small oil holes on your push rods. I thought the push rods to some extent rotate. What is the benefit of those oil holes?

On the Rally Bug, we burnt up a set of rockers (at the valve stem end) due to lack of oiling. This was on the first 2110cc, which is setup for drysump. We never determined *why* there was a lack of oiling for the rocker...could have simply been a bad set. But small oiling holes were added to the exhaust pushrods to spray oil inside the heads. No further problems.

I added the oiling holes on this motor out 'just in case'. I actually put them a little too far down the pushrod (was being conservative) but have ordered a second set to correct the hole position. As the push rod spins, it sprays a small amount of oil into the rocker area. At best, it's helping to lubricate the area. At worst, it's only removing a very tiny amount of oil out of the regular system.

[Blizzard]

Have you done any other mods to ensure oil reaches the valve stems through the rockers? For example,
connect the 2 oil grooves in the cam followers,
cut oli grooves in the rocker shaft so oil can reach the valve adjuster screws with higher pressure.
Cut oil grooves in the case behind the cam bearings to improve the connection of the oil galley's in the left side of the case with the right side.
Drill the oil galley for the cam followers in the right side of the case to connect it to the trust cam bearing oil galley. With this mod you create 2 oil connections from left to right.