<VV> Lifters

[BobHelt at aol.com]

In a message dated 7/10/2008 4:04:35 PM US Mountain Standard Time,  
bryan at skiblack.com writes:

On some  I can come down to zero lash  
and then rock the lifter and feel the  piston in the lifter go up and  
down, but on some I can't.   Question is, are those lifters at the top  
or bottom of the  range?  Any thoughts on how to proceed?  


Hi Bryan,
Matt covered it pretty well, but I'd like to add my comments.
 
Any lifter that is not pumped up (i.e., full of oil) will not be solid. So  
it is natural to find partially pumped up lifters doing what you described. The 
 plungers are at the top of their travel and not at the bottom. The internal  
spring assures this. 
 
You have two choices. Either remove the lifters and pump them up by using a  
trigger-type of oil can to pump oil into the side hole. Or you can just use 
then  as they are where they are and set the adjustment to 1/2 turn in from zero 
lash.  Then they will fill in about 10 minutes of normal running.
 
The question on which to do comes about because any lifter that is not  fully 
pumped up will not be able to force any oil up the pushrod and thus not  
supply any oil to the rocker box. This means partial or marginal oiling there  
until the lifter does get pumped up. Not the best of conditions in my  opinion.
 
Regards,
Bob Helt



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