T&D Machine Products TFS 302 User Manual
Page 3
3. FINAL ASSEMBLY
After the stand heights have been set, place a pair of rockers back on the stand to assure good
rocker to valve alignment and torque the stand attaching bolts to 55/65 ft-lbs.
When the stands are tightened down, place the rocker arm and shaft assemblies on the stands
and tighten the shaft hold down nuts to 25 ft-lbs. After all of the rockers have been tightened
down, set valve lash and torque the adjuster screw jam nut to 5/20 ft-lbs.
CAUTION:
Each T&D Rocker Arm Assembly is supplied with the proper length fasteners to secure the rocker
stand to the cylinder head. Bolt holes may not be tapped deep enough to accept the fasteners
supplied. Each attaching bolt should reach maximum thread penetration without bottoming in the
hole. Make sure that the hold down bolts will go to the proper depth in every hole by threading a
hold down bolt into each hole until it bottoms on the last thread. Check the clearance between the
underside of the bolt head and the cylinder head mounting surface. The clearance should not be
greater than 0.100”. If the clearance is greater than 0.100”, you will need to tap the hole deeper or
get a shorter hold down bolt.