Occasional light lifter tick starting

[j91z28d1]

I agree with all of that. In my case however, this is the first time these valve covers have been removed since new. There's very little preload on these lifters, and the worn trunion removes most of that lash. These rockers get tightened to 22 ft.lbs, there's no backing off or adding preload, you get what you get without doing more work. I understand the areas of wear, just this is the first motor I've owned that had a noticeable light tick from a worn rocker trunion. No worries, easy to replace.

his rockers arms are the same as yours. what he's doing by trightening them down and counting the turns is measuring how far the plunger is being pushed done into the lifter. this is doable because the thread pitch of the bolts is known. so you can do some math and find out how far down one turn is. I don't know the details off hand, but I'm guessing one turn is the ideal pre load for these lifters stock.

if you have rockers with loose trendy and bearings. you should replace those first before measuring push rods.

 

[rdezs]

Many times is described above you'll find 85 to 90% of the push rods require the same length. Often it's cheaper to just buy a whole set that are that size, then get the two or three individuals separately.