Cam bearing surface slightly rough? - ZR-1 Net Registry Forums

Torchred96 · 11-25-2012

After taking out the cams on the driver's side (left the sprockets on) I noticed about 4 of the lifters on the intake cam seem to have bled down and are soft. Recall I'm working on a ticking lifter noise.. This after sitting for about a month in my garage. None of the exhaust lifters exhibit this softness..or sponginess..

I ordered the complete set of lifters for that bank (16) and am awaiting their arrival. And since I have time on my hands, my mind was thinking...perhaps overthinking as I tend to do....but,Im thinking that perhaps an oiling issue to the intake cam may have caused the lifters to collapse? Then, I went to look at the head and noticed that the bearing surface where the oil galley that feeds the cam appears to be rougher than the rest. How rough is too rough and should I try to polish it somehow?

Also..How can I check to see if oil is indeed flowing through this galley?

11-25-2012	#1
Torchred96 Join Date: Jul 2011 Location: Homestead, Fl Posts: 248	Cam bearing surface slightly rough? After taking out the cams on the driver's side (left the sprockets on) I noticed about 4 of the lifters on the intake cam seem to have bled down and are soft. Recall I'm working on a ticking lifter noise.. This after sitting for about a month in my garage. None of the exhaust lifters exhibit this softness..or sponginess.. I ordered the complete set of lifters for that bank (16) and am awaiting their arrival. And since I have time on my hands, my mind was thinking...perhaps overthinking as I tend to do....but,Im thinking that perhaps an oiling issue to the intake cam may have caused the lifters to collapse? Then, I went to look at the head and noticed that the bearing surface where the oil galley that feeds the cam appears to be rougher than the rest. How rough is too rough and should I try to polish it somehow? Also..How can I check to see if oil is indeed flowing through this galley? __________________ Sam 1991 ZR-1 :salute: