92whitelightning

replaced my lifters thinking that they were calapsed...because some of the rockers werent even touching the springs one night after revving out a little to far to try and win a race....but i replaced them and put new ones in an some of lifters seemed to be sitting a little lower then the should of been....i was just thinking that was because of the locationof thelobe of the cam...but i put the motor back together...reset the rr and valves and still make a slight tapping noise....any problems....might be internal?

WhiteWindsor

If it is just a tapping noise, chances are it wont be in the bottom end. Maybe double check everything you did to make sure.

my77stang

yeah, a "tap" is usually up top - use a piece of garden hose or heater core hose or something of the like to make a redneck stethescope and see if you can pinpoint where the sound is coming from.

2 kwik

wondering what the springs look like..did you float the valves?

hatchdemon89

i used a broom stick handel thats what we do in ny lol

shawnk007

The tapping may just be the new lifters. Sometimes it takes a while for them to pump up with oil.

67mustang302

Sometimes valvetrains have a bit of noise too, even hydraulic. Mine makes constant noise, though it's very minimal. Full roller rockers and everything. But it'll go out to nearly 7,000rpm without a single problem.