Pulling the inner valve spring at cam break in?
I've always just soaked the lifters in oil for an hour before start up and never touched the springs... Jair made sure there was fresh oil and dumped it after 20 mins of 2500 rpm... Never had a problem have rebuilt and fired over 100 motors big cams to small ones rollers to flat tappet
Been just about where you have been, other then I didn't soak my hydraulics. I don't want to get into the drama here, especially since the OP has decided to pull his inner springs.
Granted all my break-ins were in the 70's to mid 80's that even included some moderately sprung solids, and one very large BBC race engine. Even so, I never lost a cam at startup. I know times have changed...oil composition, aggressive lobes, etc. But if we can simulate those same conditions today, I don't see why a good solid startup cant produce the same results.
In my time, a good swipe on the lifter base & lobes with a good moly, plus a can of GM/EOS or STP in the crankcase was good enough. The main focus then as today was a,
Quick startup
2500/3000 rpm's
A box fan
And a garden hose just incase, for temp control
I see no reason why we cant duplicate those same conditions today with some good lube and a quality oil like the Penn/Gibbs, etc.
It really comes down to your choice, but I'm not as scared as some may be.....After all, how many "lost cam" threads have been posted here.....
Ok, so now you guys all hate me :D. Sorry, just a "Oldman" posting his thought's from yesteryear.
