Wednesday, July 8, 2020

Valve Rocker Assembly Rebuild




Time to rebuild the valve rocker assembly. First step, press out old bushing from rocker.

Bushing removed using custom press die I had to make on the lathe.

Old and new bushing, oh yeah, the bushings need two oil passages drilled.

Drilling oil passages.

Both holes drilled and match up to the old bearing.

Set up new bushing making sure the oil holes line up with the rocker arm oil holes.

Pressing in new bushing.

New bushing installed. All done... not so fast, they also need to be reamed to fit the new rocker shaft.

Hand reaming the bushing, it takes about six passes to get it to the correct size.


Reamed to fit.

Success, the shaft fits through the new bearing with no play but free rotation. Now repeat process seven more times!


Eight old bushings removed.

Ready to assemble. Note the wear on the old shaft shown up front.

Rocker assembly complete, all new bushings installed on the new shaft. Ready for another forty years of service.

No comments:

Post a Comment