just put another 4.0 sohc together and dropped it in a driver of mine runs did the rear cassette , primary chain guides and disabled the balance shaft and put a set of new used ford tensioners in it. I left the drivers secondary chain setup alone as it looked perfect . runs pretty nice but sometimes at idle the front bank will get noisy give it a slight bump in rpm and it goes away instantly. I think I may have a faulty tensioner may be sticky from the junk engine that I was troubleshooting on with it before I installed it in this engine. I removed it and pumped it up and it seems to be staying quiet now. debating on putting in a another new ford tensioner or thought about putting a manual one from a rzr in . anybody running one? or is it possible maybe I am loosing some oil pressure? the rear cassette was broken but I was able to retrieve 90% of it so I never dropped the pan. maybe a clogged pickup? but not getting any low oil pressure indicators and back bank is fine. anybody running a manual one ? how long? how often you set preload? how much preload?