Push rods
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Joined: Jul 2011
Posts: 51
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From: Bow NH
I actually just went through this myself and found that deeper is not always better when it comes to lifter pre-load. My pushrods are also 24 tpi and I had set them at 3 1/2 turns and the lifters were super noisy. I started over and set the pre-load at 2 turns and 5 flats and the noise was drastically reduced. My guess is that the reduced oil chamber between the piston and the bottom of the lifter (less oil) causes more noise on some lifters . If I were you, I would set them at 2 1/2 turns. Go by your lifter instructions but most will want the preload set at the mid point of the piston travel. If they are noisy after it gets hot, go another flat or 2. I think some lifters respond differently than others. Make sure you do this when the engine is cold (sat overnight). Keep us updated on this.
Tourer
Joined: Mar 2010
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I have S&S lifters and quickie pushrods they are 24 also. S&S recommends 24 flats (four full turns). I found them to be a bit noisy. I did 28 flats and they quieted right down. Be sure your motor is COLD not cool and make sure you are on TDC compression stroke.
Good luck.
Good luck.
Seasoned HDF Member
Joined: Jan 2013
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From: Lake, Ms
S&S quickie pushrods are not 24. They are 32 per inch. 24 flats on the S&S is .125.
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Joined: Jul 2011
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From: Bow NH
So I backed them off 1/2 turn each. At idle it seams to be better. I will take it for a spin tomorrow and see how it is. There set to 3 turns. I know woods cams are noisy but just want to make it the best it can be.
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