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Rocker Shaft Blues!
I'm hoping to fix my rocker shaft woes.
The engine is a 1969 S.
The rocker shafts are loose on #3 #4 #6.
I'm finding that the PO tightened the hardware so much that the cap bolt has risen up so far in the cone nut it prevents my cut down hex wrench from engaging the big hex in the cone!
#6 rocker shaft turns in the aluminum bore but the cones and cap screw don't un-screw. I can't figure a way to hold the big hex side from turning and get the screw out. The shaft turns about 150 degrees but it isn't loose enough (one would think it would) to remove. The rocker binds when the shaft gets tight too so I am really stuck.
I haven't removed the oil cooler but I have the exchanger and wheel off and I can see the bolt is almost flush with the top of the hex!
Is there an answer to this without dropping the engine?
Can I reuse the old shafts and grind down the cap screws so they don't fill the hex cavity- Or are they way too streatched now?
Will new shafts lock up in the 43 year old shaft bores?
Are the rocker housing bores toast? Can they be bushed?
Are the housings aluminum or magnesium?
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