Technical Lifter fight

I’ve been fighting lifters for a while. They were not pumping up. I determined that 10 were faulty and would not pump up what so ever and I never realized until I started it. The FE sounded like a train wreck inside.
Ling story short I got 10 replacements ordered

Well I finally got all my replacement lifters in and installed. I have an issue with one and I don’t know weather to worry or not. Here is the situation: I install the lifters. I prime the oil system up to 50 lbs. All of the lifters a rock hard.


it sits for 15 minutes and I have one that’s a little soft. When I prime the system again it’s does the same trying. Gets rock solid and then bleeds off. The one with the issue is the front most one on the driver side (#1 cyl).

same scenario: I put all lifters in and put pushrods and rockers on. Primed the engine up to 50lbs. With rockers torqued to spec. Turned the engine over by hand, oil pump is not being turned at this time. When the engine makes its revolution all the way around to bring cyl number 1 back to TDC from TDC the lifter looses its pressure. And is squishy. Granted this is without the pump turning. Anything sound fishy?

 

Hydraulic lifters bleed down, some just faster than others.. If they didn't, they would be no different than solids.

 

'61 to '66 F100s are essentially identical...

 

You joined today, no location where you are from. Did you read the rules? Apparently not but is this a 352?

 

I'm not sure if it would have helped or not but about 50 years ago I started soaking new lifters in a container that I poured oil in just over the top of the lifters as they stood in the container. I picked that up from a friend I was helping ***emble an engine back then.
I just try to remember to stick them in the can and put oil in over them so they sit there for a couple of hours then take push rod an pump each one a few times by hand. So far I have not had a lifter issue. I don't know if that is the reason or if I am just lucky but it didn't cost any extra to do it.

 

Yes this is a 352. Yes I have soaked them in oil.
I just got my profile completed (picture and location)