I dont quite get how you didnt notice which rocker the broken pedestal was from?Update: broken pedestal was not the problem. There is still tons of play in the rocker on number 4 cylinder even with an intact pedestal. I don't even know if that was the rocker that the broken pedestal came off of. So say it's not a collapsed lifter, what could it possibly be?
Dayum! 3 turns is a ton, you might have been close to bottoming out the lifter. Factory spec is 3/4-1 turn and that is supposed to put you at the 'midway' point in lifter travel. I recommend no more than 1/4 for best performance personally. Add in some thermal expansion - after a few minutes of driving - and you well could have bottomed out that lifter! Really badly. I'm not really sure how exactly that would have caused your issue, but it can't be good. At the very least you'd be getting major valve float and loss of power, increased noise. Get the preload set right next time !Possible, but curious because I have a fully nonadjustable valvetrain. I brought it to zero lash then counted the turns it took to reach 20 ft lbs of torque on the rockers, and I got 3 turns. That suggests the opposite; too much preload. However when I checked wear patterns on the valve stems, they all looked to be centered, suggesting my pushrods are in fact the correct lemgth
Shims under the rocker pedestals.How exactly do I do that when I'm supposed to torque the rockers down to 24 ft lbs?
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