Initial valve adjustment question

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Dads65 convertible
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Initial valve adjustment question

Post #1 by Dads65 convertible » Sat Oct 17, 2015 7:35 pm

Completing the rebuild on my 1965 200 6cyl. New hydraulic lifters, rocker assembly mounted and ready to do the initial pre primed valve adjustment on the assembly. Every method of this I can find, has me tightening until I cannot spin pushrod in my fingers and then tightening a set amount more... My problem with this, or at least my question is, that I can continue to spin the pushrod with my fingers probably until the lifter is, or is near bottoming out. And this just don't feel like the right thing to be doing.. Maybe I just need some clarification... Can anyone help me with this please.. Thanks in advance...

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bubba22349
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Re: Initial valve adjustment question

Post #2 by bubba22349 » Sat Oct 17, 2015 7:46 pm

Yes it's really easy to tighten them down too much, you need to develop the feel for when the push Rod just starts to get a slight drag then tighten it a 1/4 to 1/2 turn. If your close that's probably good then you should reset them a second time after you have ran the engine and gotten it warmed up good. See the link below for some other tips. Good luck :nod:

Valve Adjusting
http://www.classicinlines.com/ValveAdj.asp
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

Dads65 convertible
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Re: Initial valve adjustment question

Post #3 by Dads65 convertible » Sat Oct 17, 2015 8:21 pm

Thanks, and yes, that article also sais tighten until pushrods stops spinning with your finger tips...that is my confusion..I can understand tightening until there is no vertical room between pushrod and lifter to the rocker arm, or until slight resistance is obtained.as you suggest. But everything I read said go until pushrod will not spin with finger tips..and I don't think this can be done, or if can is not correct. Thanks

Dads65 convertible
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Re: Initial valve adjustment question

Post #4 by Dads65 convertible » Sat Oct 17, 2015 10:29 pm

So should I just go with resistance and no vertical movement? Or actually go until I cannot spin pushrod with my fingertips..
My chitons book sais go until I cannot spin with fingers, but I don't want to make a mistake. Thanks in advance for all input.

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bubba22349
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Re: Initial valve adjustment question

Post #5 by bubba22349 » Sat Oct 17, 2015 10:30 pm

Ok sure the difference though would be if the lifters are primed and filled with oil, until then there is only a lite spring holding the piston inside up against the snap ring. So until there is oil pressure to pump up the lifter it's going to be as you said tighten until there is no vertical movement between the rocker arm and lifter or a very slight drag when turning. Good luck :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

Dads65 convertible
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Joined: Sun Oct 11, 2015 6:51 pm

Re: Initial valve adjustment question

Post #6 by Dads65 convertible » Sun Oct 18, 2015 2:29 pm

Ok. Thank you! That's what I will do. I apreciate it.

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