I assume you are talking about the gear that has slotted keys
and the bolts go through here and screw into the exhaust camshaft.
This is a very surprising design to me.
Maybe it was to allow for tolerances in the chains or what not to allow
for proper alignment.
I've read -- but have not seen where they replaced that part.
I guess optionally you could replace the bolts, use some locktite,
or even spot weld them in place.
Mike
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