Valve train points to check

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'''Here's a list of some areas of the valve train that need to be checked and verified. This is a general guide, and is not all-inclusive. There is no substitute for physically measuring critical areas like piston-to-valve clearances or valve spring installed height and coil bind. For those type things, do not rely solely on published figures:'''
 
  
*Springs for installed height
 
*Coil bind
 
*Retainer to seal/valve guide boss at full lift
 
*Retainer to rocker
 
*Trunnion to stud boss
 
*Piston-to-valve clearance (both before and after TDC on overlap)
 
*Push rod to guide slot in head (if used)
 
*Can use EITHER self-aligning rockers OR pushrod guide slots in head OR guide plates, not two or more of these at the same time
 
*”Rails” of self aligning rockers (if used) to retainer
 
*Rocker to valve tip (by adjusting guide plates if used)
 
*Rocker slot to stud (if using stamped rockers w/pivot balls)
 
*Proper geometry (push rod length)
 
*Rocker/polyloc to valve cover or baffle
 
*Camshaft endplay
 
*Distributor shaft and gear endplay
 
*Distributor gear material compatible with cam material
 
*Hydraulic lifter preload or solid lifter lash setting
 
*Timing set phasing
 
*Cam gear to crank gear alignment
 
*Cam gear end play if roller cam
 
*If using the SBC OEM roller lifters and retainers (aka dogbones), lobe lift must be kept below 0.354” so the lifters don’t lose contact w/the retainers
 
*Cam lobe to connecting rod on strokers
 
 
 
[[Category:Engine]]
 
 
[[Category:Good articles]]
 

Latest revision as of 07:55, 27 November 2024

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