Break-in new lifters

[green1]

This is going so slow. Found the last factory right bank piston left for a 70 340, finally found rings, they came .060 over; standard set coming next week.
So, found the lifters leak down after weeks of sitting, even ones under no pressure. bought a set of sealed power; half wouldn't pump up in a can of oil. Swapped them for a new box-1'st 2 pumped up, set them aside.

Now, the problem-upon fire-up, I will have one new set of rings on a new piston, new lifters on an old cam, and a new-to-me empty 727 trans (lines and radiator cooler empty, too). Too much to take care of at the same time.

Do I really need to 2000 rpm upon start-up? Lucas pre-lube

 

[jefflock]

Yep you had better break in those new lifters at 2000rpm. On the tranny dump in at least 6 to 8 quarts of fluid depending if you have a deep pan or not.

 

[Rocket]

If you have not bolted the transmission to the engine yet you should also fill up the torque converter with a quart or more of transmission fluid then slide it on to the transmission input shaft.

 

[fishy68]

Agreed with both comments above. If you don't break in the new lifters you will be replacing the cam and lifters again soon. Also as soon as it starts up (or even before you start it) pop the trans. in neutral because torqueflites don't pump fluid in park. It'll be running dry all that time if you don't put it in neutral. Be careful of course. Having the back wheels off the ground is the best way to do it since you have to run it at high rpm. That way there's no accidents.

 

[70aarcuda]

you dont want to fill the lifter up with oil before firing up a new engine or camshaft...

a pumped up lifter will hold the valve open and the piston will hit it....

the lifters will fill with oil in a matter of seconds once the engine fires....anytime you put new lifters in....they need to be broke in at 2000 rpm ...