adjusting pushrods with lifters not primed
HDF Community Team
Joined: Jun 2006
Posts: 12,776
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From: san antonio
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
Advanced
Joined: Jul 2019
Posts: 92
Likes: 50
From: West Lafayette, IN
Not necessary at all. If one or more of the lifters have a bit of air in them, they will quickly pump back up with engine oil pressure. You'll hear some brief ticking, but nothing to worry over. Fire that sucker! 
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Novice
Joined: Nov 2020
Posts: 20
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From: IN
getting a new one, sometime....... ......... ......... .........
Stellar HDF Member
Joined: Mar 2008
Posts: 2,328
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Well i have already turned the motor to move to the front cyl. to set.........
so now i have to move to the rear cyl again after already having it set to 3.25 turns.
I just thought it would prolly be better to start over......... now wondering what the procedure would be on that rear cyl since the lifters have already been bled down once.
so now i have to move to the rear cyl again after already having it set to 3.25 turns.
I just thought it would prolly be better to start over......... now wondering what the procedure would be on that rear cyl since the lifters have already been bled down once.
The reason you start on the base circle is to make sure you know where zero lash is. If it's just a matter of getting the right preload on there, a turn of the threads is a turn of the threads. If you want more preload, add it.
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Novice
Joined: Nov 2020
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From: IN
.75 turns of that thread is .75 turns. There is no reason to start over. In fact, 3.25 turns is probably fine.
The reason you start on the base circle is to make sure you know where zero lash is. If it's just a matter of getting the right preload on there, a turn of the threads is a turn of the threads. If you want more preload, add it.
The reason you start on the base circle is to make sure you know where zero lash is. If it's just a matter of getting the right preload on there, a turn of the threads is a turn of the threads. If you want more preload, add it.
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Joined: Jul 2019
Posts: 92
Likes: 50
From: West Lafayette, IN
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Novice
Joined: Nov 2020
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From: IN
yeah, i started "fixin" on my 73 XR75 flat tracker, all my 2 strokes, lawn mowers, my 64 Impala SS and every car/truck to date. i like doing it, but sometimes it seems like trying to save money and doing it yourself backfires..... but now-a-days you can always go to the google or some forum and get solid info. and its always better to ask than just wing it and end up regretting it.
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Joined: Mar 2010
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From: Poolville
For future purposes, if you ever do that again you don't have to take anything apart.. You could have added more turns to a push rods, I've done it many times just to try to quiet them down a little more.. As long as you started with the cylinder at top dead center on the power stroke and you know you set it three and a quarter turns you'll be fine to just add another 3/4.. Yes it's that simple.. And don't worry about pumping them back up..
