Flat tappet lifter failure

[Paul Precht]

Originally Posted by Gmirza

I lost one cam lobe, I noticed it after about 100 runs. I’m not sure when it went away. Most likely caused by lack of oiling at low rpm. From what I’ve been told the tool steel lifter, cast cam combination is only good for maybe 200 runs if you’re lucky. Go fast stuff can a P.I.T.A.

Hi George, do you know what your spring pressures were open and closed.