Question about Harley Davidson Motorcycles
Posted by Anonymous on
Hi Anonymous, you can purchase a set of adjustable push rods making lower rocker box installastion easier, other wise if you are using stock factory solid push rods all four of them are different lengths. The shortest goes in the RI ( rear intake ) the next shortest goes in the FI the next shortest goes in the RE and the longest goes in the FE. Rotate the engine until the lifters are at their lowest point of the cylinder you are working on and install push rods, tubes, o or quad seals, gaskets, and lower rocker box. In increments of 5 ft lbs. and in a criss cross pattern, torque 5/16" bolts to 20 ft lbs. and 1/4" bolts to 10 ft lbs. WARNING!!!!! Wait a couple minutes for lifters to bleed down untill you can spin push rods freely with your fingers before moving on to the remaing cylinder.Then rotate the engine untill the other cylinders lifters are at their lowest point and repeat the process. Good luck
Posted on Apr 20, 2015
The push rods are at a required length to activate the rocker gear
by shortening the push rods the valves will not open and the engine will not go
if the original rocker covers will not fit after work has been done then I would go back to square one and find out what has been assembled incorrectly
Posted on Apr 19, 2015
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Posted on Jan 02, 2017
The 5/16" bolts torque to 15-18 foot pounds.
The 1/4" bolts torque to 10-13" foot pounds.
The socket head bolts on the upper cover torque to 80-110 inch pounds.
Posted on Sep 24, 2009
I could be the bushings in the rocker arms and the rocker arm shafts. Bring the piston to top dead center on the cylinder that has the noise. Both valves should be closed. Allow about five minutes for the tappets to bleed down on that cylinder. When you can spin both of the pushrods with your fingers, remove the 5/16 inch bolts on the right hand side (pushrod side) of the head. This should allow you to push the rocker arm shaft out and remove the rocker arm. You may have to gently tap the rocker arm shafts out but it should not be difficult to get them out. Do not mix the rocker arms and their shafts up. Keep them together. Check the bushings in the rocker arms and the rocker arm shafts for wear. The bushings can be replaced and use new rocker arm shafts if this turns out out to be the problem. Check the face of the rocker arm where it pushes down on the valve stem for wear as well.
Posted on Sep 06, 2011
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