jap901
Well-known member
I have a dodge 318 with A 268 xtreme cam and I have valve train noise and im only holding 6in lb of vacuum at idle. Iv read that the xtreme cams are know for valve train noise but my power brakes are hard to push is what got me to check my vacuum and iv also read that if ur lifters are not holding its prime it will cause low vacuum, valve train noise, and rough idle, so i removed my valve covers and turn the engine over to where the valve was open and u can watch the rocker move up because lifters are losing ther prime and both lifters on cyl 2 i can push down with my hand. I soaked the liftes for a week b4 installing them. Im lost to why there lifters are doing this unless ther just a bad batch of lifters. Whats ur imput on my issue. THANkS IN ADVANCE.