Would worn rocker arm shafts or rocker arm bores cause the knock sensor to go off? I'm @13-14 psi and am getting 11* of timing pulled out even before I hit second. And it doesn't seem to be an octane issue either. (14psi netted me the same results as 16.5psi.
I replaced the valve springs last year and seem to recall the rocker arms dangling on the shaft like a set of windchimes (well not that bad), but you get the idea.
Are rocker arms and rocker shafts another of the many parts GM has wuit making for us too?
D
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1987 GN...tuned by TurboLink
I replaced the valve springs last year and seem to recall the rocker arms dangling on the shaft like a set of windchimes (well not that bad), but you get the idea.
Are rocker arms and rocker shafts another of the many parts GM has wuit making for us too?

D
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1987 GN...tuned by TurboLink