<VV> Where lifters go to die....

Kenneth E Pepke kenpepke at juno.com
Fri May 29 06:15:53 EDT 2009

Hydraulic style cam followers can click when the internal check 
ball fails to seat.  The usual cause is failure of the small spring 
inside.  This spring can fail in stages, loosing a coil at a time.  At 
first it may manifest itself as a delayed pump up ... clicking that 
eventually goes away.  It is possible to replace the spring with 
one from a known to be good lifter ... for those that do not wish 
to introduce a new contact surface to the cam lobe.
Ken P

On Wed, 27 May 2009 14:24:57 -0700 (PDT) Michael Kovacs
<kovacsmj at sbcglobal.net> writes:
> IMHO, Lifters leak the oil pressure so they do not pump up and 
> therefore CLICK or clatter. A friend showed me how to judge a weak 
> one. You take a screwdriver or other suitable tool and try to push 
> the rocker arm down while the engine runs at idle. If it starts to 
> click, it may be loosing pressure. If it continues to click after 
> you release pressure...it should stop after a click or three.

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