Originally Posted by Panther (Post 4416454)

I prime the engines without the pushrods installed, completely bleeding out the lifters, prior to installing the pushrods. No problems here.

Originally Posted by chefke (Post 4416450)

I usually don't post my opinion , but for all the problems I have read on this website about hydraulic roller lifters, and the advise of having to break them in with 5w-30, noise issues, collapsed plungers, This shouldn't be! Nothing worse than trying to do something right and then pulling intake manifolds to fix a problem. Those lifters are not Cheap! If the manufacture had to start paying labor to fix this crap they would be out of business.

Originally Posted by 1MOSES1 (Post 4416469)

Regardless of how they are installed lifters will bleed down after sitting. If they are squeezed gravity takes over. Lifter noise is not a one time occurrence but a repetitive one at cold.

Originally Posted by Panther (Post 4416552)

Of course it does but it bleeds out the assembly lube and helps prevent galing inside the body, especially in a dry lifter like a Johnson. I haven't had the clacking issues since doing this. It was something new I tried...always learning and trying new tricks.....

Also broke in with 10W/30 but run with 15/50 Amsoil.

Originally Posted by chefke (Post 4416433)

Try Gatorman, they are half the price, I've used them in four HP 500 Upper half rebuilds, quiet with half turn pre load. They will clear the sheet metal intake shield, and one of my customers runs the dog poop, out of his engines,,and no issues. Teague uses a lot of these lifters in there engines as well. I don't know how they will work with a crazy profile, but worked great with 500 efi cams

Originally Posted by Sonic30ss (Post 4416624)

Curious, who's lifter does Merc use in the 525 EFI?