adjusting zero lash with guide plates
04-16-2009, 08:53 PM
#2
Registered User
Join Date: Jan 2004
Location: Downey, CA
Posts: 1,406
Guide plates or no guide plates makes no difference in adjusting lash. As has
been stated many times before just follow Method 1 from the shoebox tech
pages:
http://shbox.com/1/4th_gen_tech2.html#adjust_valves
been stated many times before just follow Method 1 from the shoebox tech
pages:
http://shbox.com/1/4th_gen_tech2.html#adjust_valves
04-16-2009, 09:31 PM
#3
Registered User
Join Date: Feb 2004
Posts: 4,800
The spin the pushrod thing almost always results in too tight anyway.
Use the "poly lock" method on his site.
Zero lash is when you can not move the pushrod vertically between the lifter and rocker anymore. By the time you feel drag on an oiled pushrod spinning in the smooth oiled cups in the lifter and rocker you probably already bottomed the plunger and adding additional preload hangs the valve open.
Use the "poly lock" method on his site.
Zero lash is when you can not move the pushrod vertically between the lifter and rocker anymore. By the time you feel drag on an oiled pushrod spinning in the smooth oiled cups in the lifter and rocker you probably already bottomed the plunger and adding additional preload hangs the valve open.
04-16-2009, 10:43 PM
#4
Registered User
Join Date: May 2005
Posts: 446
I had a hard time getting this right, so hear is what I did. Took off 1 Valve cover at a time, started the motor, loosened one rocker at a time until it was ticking, spun the poly lock with my finger until it stopped ticking, ( YOU CAN FEEL THIS WITH YOU FINGERS). Then I gave it a half turn with a wrench, and tightened the allen bolt. Did this one at a time, and have been good ever since.
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