Date:         Tue, 1 Feb 2000 13:28:47 -0500
Reply-To:     Bob Donalds <bostneng@FCL-US.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Bob Donalds <bostneng@FCL-US.NET>
Organization: Boston Engine Exchange
Subject:      Re: Hydraulic valve lifter (mis)operation
Comments: To: Richard Bias <rbias@HOTMAIL.COM>
Content-Type: text/plain; charset=us-ascii

Richard Bias wrote:
>
> All,
>   The whole thing about adjusting to 6 mils of lash was and is only a
> momentary (1/2 hour tops I believe) part of the "adjusting process".  No one
> said (and if they did, they were wrong) to leave the valves at 6 mils of
> lash.  It is just to get the lifters to pump full of oil before you adjust
> them back down 1 turn (360 degrees) from 6 mils, to allow the "hydraulic"
> part of "hydraulic lifters" to take over from there.
>   Rich
>

Richard
I deal with this problem every day and I am telling you there are times
when adjusting the valves as you suggest is wrong. I tell my customers
they preload the lifters at there own risk the valves just dont close
all the way. so yes .006 ths is the way to go in some cases  or you will
have low power low manifold vacuum hard or no start hot and you will
burn the valves. also if you do preload the lifters a compression test
is needed before and after to makes sure the valves are closed all the
way. the exhaust valve has to sit on the valve seat or it overheats
I cant tell you why this is just how to work with the hand we have been
delt
Bob Donalds
http://www.bostonemgine.com