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E.O.I.C valve setings questtion

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Old 01-16-2023, 11:00 AM
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Default E.O.I.C valve setings questtion

Hey guys...simple question..I want to messure valve/piston distance and i'm doing the e.o.i.c valve settings.I have hidraulick roler lifters so the question is do they have to be fild with oil or not..thank you
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Old 01-16-2023, 11:08 AM
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When you are setting valve lash on hydraulic lifters you are compressing the compressible part of the lifter (that which would be pumped up with oil pressure when running).

Even if there was a way to "fill" them with oil you'd be pushing the oil right back out as you snug the adjuster nut down.

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Old 01-16-2023, 11:13 AM
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Originally Posted by DrFeelgood
When you are setting valve lash on hydraulic lifters you are compressing the compressible part of the lifter (that which would be pumped up with oil pressure when running).

Even if there was a way to "fill" them with oil you'd be pushing the oil right back out as you snug the adjuster nut down.
So it is ok to set the e.o.i.c when the lifter is dry and i can squize them with my fingers
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Old 01-16-2023, 11:20 AM
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When you set valve lash you are setting lifter preload. This is how much the lifter is compressed without oil (hydraulic pressure) being present. I can't really answer how easy it should be to compress a dry lifter, but when you are setting preload that process compresses a lifter just like when you squeeze it by hand.
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Old 01-16-2023, 11:43 AM
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Originally Posted by DrFeelgood
When you set valve lash you are setting lifter preload. This is how much the lifter is compressed without oil (hydraulic pressure) being present. I can't really answer how easy it should be to compress a dry lifter, but when you are setting preload that process compresses a lifter just like when you squeeze it by hand.
Than you doktor as allways...my respect to you.You are still on of my profesors
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Old 01-16-2023, 11:55 AM
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Originally Posted by Zole
Than you doktor as allways...my respect to you.You are still on of my profesors
The distanc valve/piston is 0.043 inc...Is that ok
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Old 01-16-2023, 12:05 PM
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NO!
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Old 01-16-2023, 12:12 PM
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Originally Posted by fbc25el
NO!
To big?
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Old 01-16-2023, 12:13 PM
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Originally Posted by Zole
To big?
Too small! You should be shooting for 0.100 inch or so.
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Old 01-16-2023, 12:20 PM
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Originally Posted by DrFeelgood
Too small! You should be shooting for 0.100 inch or so.
sorry...miscalculacion..0.433 inc
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