bad vs good lifters?

[t1demont1]

Do good lifters spring, or sit still? I pulled all my intake lifters, and some are springs and some dont move at all when you press on them. i couldnt find much info on the interweb.

[Siena]

All depends on how much oil is in them, they could be compressible, or feel "solid".

Why have you pulled them - are they noisy in operation?

[t1demont1]

ive got a noise that im trying to diagnose.

[haus4]

I will agree Siena, the lifter springs should not be able to be compressed by hand. A lot more force is required to compress them.

How many miles?

[t1demont1]

lifters probably have about 130k miles on them by now