Valve Springs and Retainers

[El Cuervo]

My mistake. Sorry. I didn't see that this was for a 420A engine. For some reason I was thinking 6 bolt 4g63.
Desrigard the timing light. Unless the 420a has a CAS and its adjustable.
OK. Its not cam bearings. Its cam journals. But when your cam journals sit on the head (half circle bearing) and you re-install the cam cap (the other half circle bearing) it WILL form a complete bearing around the cam. So now you have a bearing on your cam.
Check your cam manufactures for Proper braking in procedures. But it is wise and logical to use new oil when breaking in a cam or any moving part in an engine that involves metal to metal contact, unless you are sure that your oil is fairy new and clean.

 

[nothingfiction]

Worked on the test engine this afternoon. Valve cover was absolutely nothing. all those bolts holding the gold brackets around the cams was a piece of cake. this job is going to be too simple. the only difficulty at all is...

1: taking the cam gears off with what little room there is to work with inside the car.
2: the valve springs are right freaking there sticking out under the cams. this part is going to be relatively easy too. just very time consuming.