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jerflash, the Hylift 2148SE is a slow leak lifter.
I know it is but does not make it good for high lift or for high rpm. Slow leakdown lifters set up properly should be quieter by design. His are super loud. He may have just gotten a bad batch or they are not set properly.
Lifters should not tick at all
Metalchipper, what is your preload set at now? If it were me, I would remeasure with a pushrod checker on a few cylinders. Get my average number and add .030, order that pushrod. Something tells me you are off somewhere
I know it is but does not make it good for high lift or for high rpm. Slow leakdown lifters set up properly should be quieter by design. His are super loud. He may have just gotten a bad batch or they are not set properly.
Lifters should not tick at all
Metalchipper, what is your preload set at now? If it were me, I would remeasure with a pushrod checker on a few cylinders. Get my average number and add .030, order that pushrod. Something tells me you are off somewhere
Hello,
The preload is .035"-.040", checked with a dial indicator on top of the push rod end of the rocker. I have an extra set of rocker pivot supports so I might try to mill the bottom down
.020" which should give me about .024" more preload. Or mill .025" off and get about .030" more preload and see how it sound before ordering longer push rods.
Question for the cam experts? It is a Cam Motion custom order with soft closing ramps----- but at Intake duration of 210 at .572" and Exhaust dur. 214 at .562" lift make for a noisy cam? I heard that small duration and high lift make more noise. But I do not know if I would call .56" high lift, the noise is on the exhaust side with a stethoscope.
Thanks
I finally have the lifters quieted down. Before they would not get quiet until the engine reached full operating temperature, now when about 25 degrees they are quiet. I waited for colder weather to see what would happen before updating.
I milled some extra support rails. I was aiming for -.020” but the first one I milled was .009” thinner than the 2nd one so I ended up with taking off .029.” Which changed the preload from .040” to .074”. There is .080” more plunger travel left in the lifter.
As far as the rocker geometry is concerned, I think it is OK. Going from the stock cam----0.457”/0.466” lift to 0.572” / 0.562” should put the rocker closer to the center pivot point. There is minimum .050” clearance between the rocker and spring retainer.
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Quiet Lifters 
