REPLACEMENT QUICK INSTALL PUSHROD NUT 7/16-20

Description

7/16-20 Replacement nut for Feuling Quick install pushrods 4096 and 4097CORRECT PUSHROD/LIFTER ADJUSTMENT REQUIRES STARTING WITH FULLY PUMPED UP LIFTERS!QUICK INSTALL PUSHRODS HAVE 7/16-20 THREADS PER INCH, 0.050” ADJUSTMENT PER TURN. 2 TURNS = 0.100”TROUBLE SHOOTING NOISY VALVE-TRAIN 1. Lifter adjustment – Starting with a fully pumped up lifter, from zero lash put 0.90” – 0.100” of pre-load on Feuling® hydraulic lifters2. Lifter to lifter bore clearance out of spec, Feuling® recommends a clearance of 0.001” – 0.0015” for proper oil psi at lifter3. Pushrods flexing and hitting pushrod tubes – look for a shiny ring witness mark around pushrod normally seen up towards the cylinder head4. Low oil pressure – inspect pressure relief valve in camplate, oil pump/camplate wear5. Pushrod center oil hole plugged6. Clearance for roller rocker arms on under side of rocker box covers7. Steep ramped camshafts, valves closing so fast the valves bounce off valve seats – see Feuling® Beehive® valve springs8. Excessive crankshaft runout9. Gear drive camshafts, excessive gear drive backlash or excessive crankshaft runout10. Rocker arms/bushings out of tolerance11. Valve spring clearance to lower rocker box housing12. Valve spring coil bind and or valve spring harmonics – match up valve spring open height with camshaft peak lift13. Leaky/broken piston cooling jets