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Originally Posted by QuadCam
good stuff Nathan!
conversely, it appears that there's room to machine off the other end so that you could retard the cam timing slightly for more top end power.
Jeremy Tibbs and I took one of these apart awhile back and I recall all sort of springs and sort popping out of the pulley. Once apart, it might be quite a chore to get it all back together.........correctly.
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It's very simple to pull apart, the vane just comes out complete
The spring & seat not showen in my photo,is used to lock the vane in the retard position so that there is no movement when the motor is cranking over on start up & no oil pressure.
As soon as there is oil pressure the the plastic lock valve is lifted away allowing the vane to turn if the ECU so directs.
There is no need to have any more retard as the fully retarded inlet cam is there for emissions & idle (no overlap)