Saturday, November 30, 2013
How to Install Pushrod Guide Plates
There are two schools of thought regarding pushrod guide plates. Some say that using pushrod guide plates is necessary only if the pushrod guides in the cylinder heads wallow out. Others, including those who sell pushrod guide plates, insist on their use in high-performance applications. Both screw-in and press-in rocker studs will accommodate pushrod guide plates. Removing the cylinder head and sending it to a machine shop is necessary when installing pushrod guide plates on a cylinder head with press-in studs, while the owner of a vehicle equipped with screw-in studs can install the guide plates themselves.
Instructions
- 1
Loosen the fasteners that hold the valve cover to the cylinder head by turning them counterclockwise with wrenches from a toolkit. Remove the valve cover from the cylinder head.
2Turn the rocker nuts counterclockwise with a ratchet wrench and socket until they are free of the rocker studs. Remove the rocker arms, keeping them in the same order as removed or marking them with a permanent marker to indicate which stud it came from. Remove the push rods.
3Slip a six-point deep wall socket on a ratchet wrench over the hex head on the base of the rocker studs and remove them from the cylinder head by turning them counterclockwise until they are free of the head.
4Slip the lower portion of a rocker stud into each of the two mounting holes of the pushrod guide plate. Thread the rocker studs back into their holes in the cylinder head, ensuring that the pushrod guide plate is not upside-down and the slots in the guide plate align with the pushrod guide holes in the cylinder head. Refer to the pushrod guide manufacturers instructions for proper positioning of the pushrod guide plates. Tighten and torque the rocker studs to factory specifications.
5Slide the pushrods through the guide holes in the cylinder head, ensuring they sit in the grooves in the pushrod guide plates.
6Reassemble the rest of the parts in the order removed, installing the rocker arms in the same position as before.
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