Rocker Arm oiling


http://209.208.111.198/Topic14789.aspx 		Print Topic | Close Window

By Jim Rowe - 17 Years Ago
Guys,



When I built my 312 I had the following:

Block hot tanked

New Cam bearings supplied by machine shop that did all of the boring/balancing/rods etc.

New Cam from Mummert with center lobe grooved ( clay smith cam)

New push rods from Mummert

New rockers from Vern Schumann

New New Rocker rails from Schumann

Cleaned the rocker stands

New Steel head gasket from Mummert ( installed correctly )



When I check the valves I just don't have much oil on the heads. You can see it on the rockers but really not much in the drain area below the valve springs. I do have what I think is to much valve noise ( set at 18 thou ) cold.

I did not chase the block to see if all oil galleys were fully open.



Oh, I use 15-40 Shell ( the old good stuff)

25 psi at idle 70 psi at 2000 rpm



What am I missing?



Thanks



Jim

Omaha Nebraska
By Hoosier Hurricane - 17 Years Ago
Jim:

Take your thumb off the panic button.  If you see oil running out of the overflow tubes at idle, the rocker shafts are running full of oil and all is OK.  With new arms and shafts, clearance will be at minimum and a minimum amount of oil will escape between the arms and shafts.  Some performance cams are noisier than others.  Often aftermarket cams call for less clearance than a stock one.  What does your cam card call for?

John in Selma, IN

By Jim Rowe - 17 Years Ago
Thanks John,



The cam card calls for .018 and that's set cold. That is what I am running.

As you know this was not a cheap engine build and I want it to stay together and run a long long time. I limit the RPM to 5000 RPM. Only been their a couple times. Love the car it's a gas to drive. Doesn't seem to run to rich with the two 500 cfm Edelbrock carbs. They are on progressive linkage with the front carb not really opening all the way. Do know that it would help much if it did. Haven't had it to the strip yet. We only have a 1/8th mile strip close.

What would be a respectable time and MPH? Stock gears and the stock Fordo.



Jim