Race engine rebuild. original cam new lifters. All but two liters cupped.
2006-09-25 18:25:20 · 4 answers · asked by modifiedmaniac 2 in Cars & Transportation ➔ Maintenance & Repairs
I was always taught you have to put a new cam in if you install new lifters. An old cam will be worn unevenly, so it will eat new lifters as the mating surfaces aren't perfectly parallel.
2006-09-26 00:31:22 · answer #1 · answered by Anonymous · 0⤊ 0⤋
could be a worn cam. Did you replace the cam and lifters or just lifters? Always use new lifters on new cam. run in at 2000 rpm for 20 minutes.
2006-09-25 20:40:49 · answer #2 · answered by 351jas 4 · 0⤊ 0⤋
can't really explain it but i've seenit happen before. it has to do with run in time. when you replace a cam you always replace the lifters
2006-09-25 18:39:51 · answer #3 · answered by natallbad 4 · 1⤊ 0⤋
check to make sure oil is getting to camshaft,excesive valve spring tension,lifters not hardened.
2006-09-25 21:34:04 · answer #4 · answered by frank m 5 · 0⤊ 0⤋