Cam break in failure. Feb 28, 2013 · The cam needs oil splash from the crankcase and oil ...
Cam break in failure. Feb 28, 2013 · The cam needs oil splash from the crankcase and oil run-back from the top of the engine to help draw the heat away. Well after almost two dozen or more new flat tappet cam installs over the years, not including roller cams, I now have one that failed during break in. This mates the lifters to the cam lobes. Procedure Breaking in an engine with a flat tappet camshaft is critical to its performance and long life. The following procedure could apply to any engine with a flat tappet cam. Mar 2, 2026 · Learn how to properly assemble and break in a flat tappet camshaft to prevent costly valvetrain damage. Followed all break in procedures * Gobs of assembly lube on cam * Soaked lifters in oil all weekend, lubed on bottom, oiled on side, check for free rotation * Checked pushrod length (pedestal rockers, no adjustments) * Broken Camshaft While many issues with the camshaft come from the parts that connect to it rather than the shaft itself, that doesn't mean it can't also be the cause of problems. Nov 21, 2007 · Year ago when I was building quite a few flat tappet engines with big cams and high rate springs I used lighter break in springs to break the cam in then swap them out after. Since you just came out of your cave, oil formulas made a change back on 2007, since then, flat tappet cams have been having problems. Sep 23, 2020 · This somewhat of a long story, hopefully it will save you guys some problems when you put a cam in, and maybe someone has a good reason where we or the cam went wrong. ivljma tzvks gdhq vmpdet zxfo kgxgmst spj ngrf pxt bqm
