Yes it is that time on the rebuild! What has been more successful and why, with hydraulic lifters to assemble the rocker shaft assemblies, cam, and lifters? Any final assembly thoughts/advice from the community? Telriv suggested oval-ing out the oil passages on the new rocker shafts for better rocker arm pivot lube. My only concern here is that new end plugs came in the new shafts so cleaning the grind debris would have to be done very thoroughly. Thanx In Advance! (TIA)
Telriv is right about extending out the oil holes to better distribute oil...most of the grinding is done on the outside of the shaft so the cleanup shouldn't be too bad. And those plugs knock right out - I think there's a certain style freeze plug that fits right in...Doc'd know...
yep,,, there is a ton of crud inside those rocker shafts... the end plugs are made by dorman... and you might have a hard time finding them at the stores... they can be removed by drilling a small hole in the centers and then running a long sheet metal screw in the hole and then pulling the plug out.... in a pinch you can flair the old plug out to where it will fit tight again , then either plug the hole you drilled with a screw or solder it up.... but it is best to find some and install new... or make you some out of brass or aluminum and install them... they are held in place by a cotter pin so they cannot come out... Once you get the plugs out you can break down the whole assembly and clean things up... clean the inside of the shaft by submerging the shaft, stands, rocker arms, pushrods, springs, washers ect... in pure simple green cleaner for at least over night and then the next day you can just rinse the crud out with hot water.... simple and easy....and they look like new.... blow them out/off with compressed air and you are ready to go... but, it is gonna amaze you how much crud is inside those shafts.... When you re assemble,,, use moly grease,,, it does not drip off... no matter how long the engine sits before you fire it up.... motor oil is a solvent for grease so when the warm oil under pressure gets to it , it will take care of its self....
Doc you are preaching to the choir! My old assemblies were so mucked up the shafts looked like big Tootsie Rolls!!!!!!!!! After some cleaning the ridges showed up so they had to go.....and this guy said, "he would drive this car anywhere".:shock: So I invested in two new shafts and am getting ready to re-assemble them. My concern was that the moly-grease would block oil flow for too long and starve something down the line from getting oil. If those plugs are steel, could a spot of MIG be used to plug the holes?
yes,, you could mig the screw holes up.... I would braze them shut with brass welding rods... or something like that.... :Brow: That looks a lot like ''cold sludge '' in your engine... caused by either running the engine too cold,, or not running it long enough to warm up really good and cook off the accumulated moisture in it.... :Brow: but..... the simple green will take all that off and leave it really clean....
