Ford FE lifter noise
Got a 412 Ford FE With Lunati Hydraulic flat tappet lifters with Bracket Master II cam. Have a total of 34K street miles on it. Lifter makes tapping noise like its collapsed. Only makes noise at a constant speed or deaccleration.
When you give it throttle or flat foot it the noise disappeares.
It has the non adjustable 1.73 ratio rocker shafts.
Makes idle cold start 35lbs. Idle when operating temp. 30lbs.
I think the plunger is partially collapsed. Any suggestions?