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Lifter replacement @ 60000

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Old Nov 23, 2025 | 09:57 AM
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Originally Posted by Funnel
Is the noise you were getting, gone now with replacement lifter?
Yes but I also set the lifter plunger to 0.125" depth instead of the usual 0.100.
 
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Old Nov 23, 2025 | 10:00 AM
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Default Plunger depths
Originally Posted by Max Headflow
Yes but I also set the lifter plunger to 0.125" depth instead of the usual 0.100.
How did you do that and what does it prevent with new lifters, if anything.
 
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Old Nov 23, 2025 | 10:07 AM
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From: poway
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Originally Posted by mjwebb
and what are the benefit claims / expectations going with the "new Hylifts that have the pin oiler" compared to the previous versions, longer service life, quieter....?
The pin oiler increases oil to the roller axle. It's supposed to increase roller bearing life. IIRC, @wfolarry said that Hylift had told him it helps ensure that the pin gets lubed on stationary motors that run at constant speed. Motors like big generators have this as a common failure. At certain RPMs the certain rollers may not get adequate splash.
 
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Old Nov 23, 2025 | 12:24 PM
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Originally Posted by Max Headflow
The pin oiler increases oil to the roller axle. It's supposed to increase roller bearing life. IIRC, @wfolarry said that Hylift had told him it helps ensure that the pin gets lubed on stationary motors that run at constant speed. Motors like big generators have this as a common failure. At certain RPMs the certain rollers may not get adequate splash.
I did say that
 
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Old Nov 23, 2025 | 06:34 PM
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Originally Posted by Max Headflow
Yes but I also set the lifter plunger to 0.125" depth instead of the usual 0.100.
Whats the calculation to achieve that?
And are you running the SE or SEL lifters?
Thanks
 
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Old Nov 23, 2025 | 07:40 PM
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From: poway
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Originally Posted by Sullyxlh
Whats the calculation to achieve that?
And are you running the SE or SEL lifters?
Thanks
Push rods are 24TPI

SEL
 
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Old Jan 17, 2026 | 03:25 PM
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Originally Posted by Max Headflow
Push rods are 24TPI

SEL
what's the part number for M8 hylifts ?
 
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Old Jan 17, 2026 | 04:53 PM
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Originally Posted by My79596!
what's the part number for M8 hylifts ?
The answer is here (Twin Cam and M8 lifters are the same) :

Home | Larry's Motorcycle Machine Inc
 
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Old Jan 17, 2026 | 06:15 PM
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My 131 factory crate makes enough valve clatter noise that I'm not sure if I'll ever notice them getting worse....
 
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