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Author Topic: Rocker Assembly Removal  (Read 729 times)

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september2017

  • Message Board Member not current AMGBA Club Member
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  • Posts: 13
Rocker Assembly Removal
« on: August 15, 2017, 09:46:18 PM »
Q:   Can you remove the rocker assembly without loosening all the head studs?
Mike Olsen

JohnTwist

  • AMGBA Club Tech Staff
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  • Posts: 37
    • University Motors
Re: Rocker Assembly Removal
« Reply #1 on: August 15, 2017, 10:01:28 PM »
A:   When I remove the rocker assembly, I loosen the four 5/16" studs first, THEN the 3/8" head nuts.  I try not to turn the engine -- but if that's necessary, then remove the spark plugs.
When refitting, torque the 3/8" studs first, then the 5/16".  I'd use 55# on the 3/8" and about 20# on the 5/16".  Just to ensure a good job, retorque the entire cylinder head.  You'll have best luck by tightening the rocker assembly first - and then following the torque sequence laid out in the workshop manual.  It's a spiral starting from the center stud on the RH side, between the #2 and #3 spark plugs.  ONE AT A TIME -- loosen a nut -- oil the nut/stud -- then take it down to 55# -- then go to the next -- ONE AT A TIME. 
Then adjust the valves.  Use 0.015" prior to 1972 and 0.013". 1972 and later.

Hope this helps!

John Twist
SAFETY FAST!
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John H Twist
University Motors Online
100 East Beltline Avenue SE
Grand Rapids, MI  49506

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