- Jun 10, 2014
- 77
- 5
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Hey guys. So I recently did a head swap. Really basic, just Ditched the E7s for some GT40Ps with crane beehive springs. I am running an E cam, and after I got it all back together, I developed a really nasty noise in the valve train. Sounded like a broken rocker. So I pulled the rocker covers and upper intake, and didn't find a broken rocker, but the rear pushrod on cylinder #4 (exhaust valve?) was not touching the rocker and there was a little play in it. I pulled the pushrod expecting it to be bent, but to my surprise it's straight. Rolls pretty easily on a flat surface. I suspect a collapsed lifter, just coming to you guys for second opinions before I pull the lower intake again (I hate sealing lowers )
Now I have checked my pushrod length and they seem to be just right. My rockers are non adjustable pedestal mounts, so I believe preload is not an issue. any other possibilities or is my issue a failed lifter?
If so, why would it have gone bad, and should I go ahead and replace them all at once, or just the one?
Now I have checked my pushrod length and they seem to be just right. My rockers are non adjustable pedestal mounts, so I believe preload is not an issue. any other possibilities or is my issue a failed lifter?
If so, why would it have gone bad, and should I go ahead and replace them all at once, or just the one?