[TR] Ref; Valve train noise
Q
HDRider570 at att.net
Fri Nov 13 18:03:03 MST 2020
Check the rocker arm bushings and the alignment of the arm over the
valve. The rocker arm pad ends could be toast. Also check the cam for
wear as flat lifter cams are often worn in a couple of thousand miles by
modern oils if you don't use ZDDP additives of some sort. The
regrinding could also have effected the hardness of the surface of the
lobes.
There have been batches of "soft" lifters over the years as well.
If you install the rocker shaft incorrectly there could be no oil to the
rockers.
Edward Hamer
Petaluma CA
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