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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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#46503 06/21/2005 6:12 AM | Joined: Jan 2005 Posts: 26 Junior Member | | Junior Member Joined: Jan 2005 Posts: 26 | I am now through with the installation of the copper oil line that feeds the rocker assembly. Thanks for your help on this.
Two questions:
1. Just for my own curiosity, I did a ram down test on each cylinder before installing the rocker assembly. There was a little bit of leakage on each cylinder through the ports. ("Little bit of leakage" = (guessing here) about enough to fill a balloon in about 10 seconds.) The valves have just been redone and some of them even lapped. Is it normal to have a little bit of leakage? I am using about 80 pounds to do the ram down test.
2. I am now in process of installing the rockers onto the head. There seems to be one rocker that is tight even with the adjustment screw removed. Is this normal? Should I just go ahead and tighten the bolts to that hold the assembly in place and then adjust the valves cold?
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