cngordon
Well-Known Member
My PRW rocker rollers included a measuring rod. After installing the hydraulic lifter, and the measuring push rod, and tightening down the rocker shaft, I adjusted the rod until the rocker quit having any movement, but did not preload the lifter. My rocker adjusting screws are showing 1/2 to 1 thread.
The rod measures 8.9 inches. Comp Cams sells rods at 9+ inches. 440 Source sells them at 8.9 and 9+ inches.
I am not sure if I should have adjusted the measuring rod to include any preload. I believe the tech guy at PRW was telling me the answer is no, that the preload is obtained by using the adjusting screw after, and that 8.9 would be the correct length.
My speed shop is telling me that they think the 9+ inch ones from comp cams are the correct ones.
Anyone with experience in measuring and ordering these push rods ?
The rod measures 8.9 inches. Comp Cams sells rods at 9+ inches. 440 Source sells them at 8.9 and 9+ inches.
I am not sure if I should have adjusted the measuring rod to include any preload. I believe the tech guy at PRW was telling me the answer is no, that the preload is obtained by using the adjusting screw after, and that 8.9 would be the correct length.
My speed shop is telling me that they think the 9+ inch ones from comp cams are the correct ones.
Anyone with experience in measuring and ordering these push rods ?