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Cam phasers

  #1  
Old 09-13-2018, 02:54 PM
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Join Date: Sep 2018
Posts: 4
Cam phasers

Iím about to change the timing set on my 5.4 and was wondering, if I replace the cam phasers to the locked kind, what else has to be done?
 
  #2  
Old 09-13-2018, 04:38 PM
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Join Date: Jan 2007
Location: Vernon, NY
Posts: 7,840
You'll likely need a tune and I recommend a Melling oil pump.
 
  #3  
Old 09-13-2018, 08:43 PM
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Join Date: Jan 2002
Location: Wilmington,NC
Posts: 4,317
Do you know what postion the locked ones will lock your cams, in the fully advanced, fully retarded, or somewhere inbetween?
 
  #4  
Old 09-14-2018, 09:10 AM
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Join Date: May 2015
Location: San Antonio, Tx
Posts: 292
"Fully Advanced" - the position that the vvt system positions cams at idle (below 800 rpm), at heaver load conditions, and at higher rpms, and at deceleration. All other conditions (at gentle driving / acceleration, at cruise, light pulling) - the ECU employs some varying degree of cam retard.
 


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