TC Quick Install Adjustable pushrods, 3/8 OD tube, 0.134 wall thickness, set of 4 pushrods. Individual length Exhaust and Intake pushrods, Install WITHOUT the removal of rocker covers, requires quick install tubes - see Feuling #4095 for tubes only or Feuling #4097 for pushrod + tube kit
This is the strongest Quick install pushrod on the market! The strength and rigidity of this quick install pushrod is second only to heavy duty one piece pushrods. Our tube material starts out as 7/16 rod OD, it then gets turned down to 3/8 OD leaving heavy duty 7/16 - 20 threads for the base and jam nut. The jam nut slides up the pushrod, the base then loosens up into the pushrod to shorten length and allow quick install access.
*This part # supersedes Feuling #4090
CORRECT 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 lifters
2. Lifter to lifter bore clearance out of spec, Feuling recommends a clearance of 0.001 - 0.0015 for proper oil psi at lifter
3. Pushrods flexing and hitting pushrod tubes - look for a shiny ring witness mark around pushrod normally seen up towards the cylinder head
4. Low oil pressure - inspect pressure relief valve in camplate, oil pump/camplate wear
5. Pushrod center oil hole plugged
6. Clearance for roller rocker arms on under side of rocker box covers
7. Steep ramped camshafts, valves closing so fast the valves bounce off valve seats - see Feuling Beehive valve springs
8. Excessive crankshaft runout
9. Gear drive camshafts, excessive gear drive backlash or excessive crankshaft runout
10. Rocker arms/bushings out of tolerance
11. Valve spring clearance to lower rocker box housing
12. Valve spring coil bind and or valve spring harmonics - match up valve spring open height with camshaft peak lift
13. Leaky/broken piston cooling jets
FITS:
TC 99-17, Individual length Exh, Int pushrods, Install WITHOUT the removal of rocker covers, requires quick install tubes - see Feuling #4095 or #4097
COUNTRY OF ORIGIN:
USA
Disclaimer: Qualified Manufacturer Declared Replacement Part means any aftermarket part intended to replace an original equipment emissions related part and which is functionally identical to the original equipment part in all respects which in any way affect emissions (including durability), or a consolidated part, that has been evaluated and declared by the manufacturer to meet this definition and carry this categorization and designation label. This manufacturer has declared in writing that it has documentation, based upon sound engineering judgment, indicating the replacement part does not reduce the effectiveness of any required emission control device and it does not cause the modified vehicle/engine/equipment to exceed applicable emissions standards for that make/model/year fitment(s) advertised.
