This is topic valve job and stock pedestal rockers, need shims?? in forum Tech Talk at Northern California Ford Owners  .


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Posted by 66 AC COBRA (Member # 904) on :
 
i just finished doing a valve job on my 95 gt, bone stock stock

stock valves cut just enough to get them to seal right, this is the first time they have been cut

i am wondering since cutting the valve and seat a little, it will make the valve a little taller

will it not let the valve close all the way since the pedastall rockers arent adjustable unless you shim them

so am i going to need shims to set up the valve train properly

and if so, anyone know where i can get some shims today, short of making them my self by disecting a few feeler gauges i have around my house
 
Posted by FasterDamnit (Member # 442) on :
 
Ped. mount adjustment procedure-

Working on the #1 piston, slowly spin the pushrod, of the intake rocker, between two fingers while you tighten the 5/16" bolt with your other hand. When it becomes difficult to spin the pushrod, indicating that all clearances have been taken up, torque the 5/16" bolt to 20 ft-lb. If more than one full turn of the bolt is required to achieve the torque setting, you will need to shim the pedestals. Unlike a stud-mount rocker, the only adjustment possible is adding or subtracting shims under the pedestal.

Shimming: Back off the bolt, add a .015” - .020” inch shim under the pedestal, and try it again. Keep adding shims until the torque applied to the bolt reaches 20 ft-lb with between one-half and one full turn of the bolt after the pushrod stops turning. If however the pedestal bolt reaches 20 ft-lb and the pushrod can still be easily rotated, the pushrod is too short and must be replaced with a longer one.
http://www.fordmuscle.com/archives/2001/10/rockerarms/
 
Posted by 66 AC COBRA (Member # 904) on :
 
each bolt took between 1/2 to 3/4's of a turn until torqued

i did this before posting the question, but wanted to make sure before i assembled the entire motor and fired it up and it ran like ass, like before [Razz]
 




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