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Author
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Topic: Adjusting valves on 428 hydraulic
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ZEATER
Gearhead Posts: 180
From: Mount Pleasant,IA,USA
Registered: Aug 2001
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posted 03-15-2002 12:55 PM
   
I was always told to use the 1/2 turn past contact method on adjusting valves with hydraulic lifters. Recently I've heard of going an 1/8 of a turn or less to compensate for lifter pump up. The reasoning is more compression and better seal with the valves. I am in the process of upgrading to HD shafts aluminum spacers and billet stands and end stands. Thought I would get some opinions on the valve setting before I jump in.Thanks,
Steve
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TomP
Gearhead Posts: 6120
From: Delta BC Canada
Registered: Dec 99
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posted 03-15-2002 07:52 PM
I've always done it 1/2 turn, but then i rarely run adjustables on a hydraulic cam, if there are no major assembled height differences the stock rockers work fine.I think 1/8th turn may cause some clatter.
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Moneymaker
Administrator Posts: 27499
From: Lyons, IL, USA
Registered: May 99
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posted 03-18-2002 03:21 PM
I have always used the 1/8 method on FE's wiht adjustable rockers. 427 factory or aftermarket.A little morning sickness is all the noise that you will get, but a few hundred more usable RPM.  ------------------
Alex Denysenko
Co-Administrator and Moderator/ non 65-66 Mustang owner sensitivity co-ordinator NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Part time secret agent license #0089
US Class Nationals link
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