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  #11  
Old 03-10-2019, 10:43 PM
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I wouldn't worry about it if all the lifters are the same and yes you will just slightly preload it after you acquire... 0 lash although I'm not so sure about .030 maybe .010 would be sufficient... it is a ford 400 correct.

The retainer clip meets the clip in what I see in the pic the far outer step down of the seat to retain... the seat looks like it has clearance enough from the inner edge of the seat.
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Old 03-10-2019, 10:58 PM
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That is a hydraulic lifter.

As long as the lifter is not bottoming out when you install the push rod it should operate properly once it gets oil pressure. I cannot speak to the measurements.

Are you running stock rockers and push tubes?
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Old 03-10-2019, 11:19 PM
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From the crower page I found online

It appears to me that they want the clearance to be between the retaining clip and the larger diameter piston body. Measuring preload on the push tube seat doesn’t make sense because there is nothing to keep it at the top of the bore until oil pressure is present.

I would call the tech line back and hope to speak to someone different.
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Old 03-10-2019, 11:51 PM
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Quote:
Originally Posted by SmokinDodge View Post
That is a hydraulic lifter.


Are you running stock rockers and push tubes?
Push tubes I like that. I'm the type that usually picks up on misspeaks like that, I missed that one.

Yes, stock rockers, I have yet to see about the pushro I mean push tubes.
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  #15  
Old 03-10-2019, 11:55 PM
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I wouldn't worry about it if all the lifters are the same .
I have another set of Crower lifters for an AMC engine that I bought several years ago. They are the same as these new ones.
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  #16  
Old 03-11-2019, 12:06 AM
threepiece threepiece is offline
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Quote:
Originally Posted by SmokinDodge View Post
From the crower page I found online

It appears to me that they want the clearance to be between the retaining clip and the larger diameter piston body.

I would call the tech line back and hope to speak to someone different.
The picture you posted is the same as the instruction booklet that came with the camshaft. The picture is not exactly like the actual lifter. The text to the left says between the snap ring and pushrod seat.

Yes I will be calling again. I will ask for a different representative.
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  #17  
Old 03-11-2019, 06:53 AM
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Push tubes I like that. I'm the type that usually picks up on misspeaks like that, I missed that one.

Yes, stock rockers, I have yet to see about the pushro I mean push tubes.

Some are hollow and oil from the bottom to the top, push tube.
Some are solid and are low rpm and catch oil from the valve train, push rod
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Old 03-11-2019, 09:09 AM
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Hydraulic lifters are meant to be "pumped up" with oil. Before you install them, you put them in a can full of oil and take a push rod and push up and down and you will see bubbles come out as the lifter fills with oil. If you look at Zach's pic, you will see a spring that will push the cup back up.

As these are precision components, I have NEVER heard of swapping out internal parts willy-nilly to change clearances...
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  #19  
Old 03-11-2019, 09:54 AM
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Originally Posted by mccutter View Post
Hydraulic lifters are meant to be "pumped up" with oil. Before you install them, you put them in a can full of oil and take a push rod and push up and down and you will see bubbles come out as the lifter fills with oil. If you look at Zach's pic, you will see a spring that will push the cup back up.

As these are precision components, I have NEVER heard of swapping out internal parts willy-nilly to change clearances...
Yep, that would be the first step with using hydraulic lifters running a stock camshaft and rockers... if you're going back all stock.

Now if your running something like I'm running in the GM SB400
Duration 304/312, Lift .590/.610 and set of billet R/R...
Then you would use the setup tool to determine the length of the push rod you will need to get the least amount of wear pattern on top of the valve stem so you would need the tool to measure for correct clearances and set up dry once that is all done then soak em, pump em, install em and set em...
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Last edited by MetalWolf; 03-11-2019 at 05:47 PM.
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  #20  
Old 03-11-2019, 10:06 AM
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Quote:
Originally Posted by SmokinDodge View Post
From the crower page I found online

It appears to me that they want the clearance to be between the retaining clip and the larger diameter piston body. Measuring preload on the push tube seat doesn’t make sense because there is nothing to keep it at the top of the bore until oil pressure is present.

I would call the tech line back and hope to speak to someone different.
I can see where there is confusion in the wording but the diagram is self-explanatory... as it is basically talking about having no information on what to do if no speck or adjustment info available on what steps to take... to set preload and I guess then they just expect you to know what to do after

which would then be, adjust the valve as you would normally...
but again if they are hydraulic or solid they need to be soaked in oil first before the preload is done if you not having to find the right pushrod length

these tech guys are prolly reading from a screen talking tech mumbo jumbo and haven't a clue so just makes a guy more confused.
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