adjusting pushrods with lifters not primed
Road Master
Joined: Mar 2013
Posts: 817
Likes: 380
From: Central Ohio
For starters, I wouldn't worry about that extra .5 to .75 of a turn. But if you're going to adjust them, go through and and a few flats. As far as the lifter goes, when you relax the pushrod the lifter plunger will go to the top from the internal spring.
Road Warrior
Joined: Apr 2022
Posts: 1,514
Likes: 1,823
From: Omaha
I wouldn't worry about pumping the lifters back up, but if you are then get yourself an oil can with a flexible spout, cycle the engine so both lifter are up and you can see them down thru the tappet covers, then pump the lifters full of oil again. Then reset the pushrods.
Road Captain
Joined: Mar 2020
Posts: 659
Likes: 360
From: Sierra foothills
Lifters have a spring inside. Give them a half hour, they'll come back up and be ready for adjustment start over. No need to rush.
When finished, roll motor over a couple times by hand in high gear to make sure no interference. Start it up. It will clatter at first but quickly quiet down. Go for a ride
When finished, roll motor over a couple times by hand in high gear to make sure no interference. Start it up. It will clatter at first but quickly quiet down. Go for a ride
Thread Starter
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Novice
Joined: Nov 2020
Posts: 20
Likes: 6
From: IN
Okay....... so i pulled out the pushrods, started over with original instructions - TDC on Front cyl., working on back, 0 lash, 24 flats, bled down, TDC back cyl, did same on front.
Once all back together do you recommend i turn over the engine with the plugs out till the oil pressure light goes out? or is that necessary?
Thanks ALL
Once all back together do you recommend i turn over the engine with the plugs out till the oil pressure light goes out? or is that necessary?
Thanks ALL
Last edited by djl; Mar 4, 2024 at 03:17 PM.
Seasoned HDF Member
Joined: Aug 2008
Posts: 5,071
Likes: 1,006
that is a common misconception using the center of the travel. truth told, all is needed is to make sure the cup and retainer do not hit be it .050 or .100.
i actually set mine by the rocker to valve stem clearance. i shoot for about .035 but even though i have hydraulic lifters, i run them more in the solid mode, just enough to quiet the valve train.
i use s&s lifter limiters, no worries about pump up, collapse or start up running.
https://www.sscycle.com/tech-info/pushrod-adjustment
i actually set mine by the rocker to valve stem clearance. i shoot for about .035 but even though i have hydraulic lifters, i run them more in the solid mode, just enough to quiet the valve train.
i use s&s lifter limiters, no worries about pump up, collapse or start up running.
https://www.sscycle.com/tech-info/pushrod-adjustment
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