Quote:
Originally Posted by Gaz64
Is it possible you have fitted that pair of rockers with the rocker trunnions upside down?
That may explain the mark on the stud, the trunnion was moving and flexing the stud in the process.
The trunnion has a flat recess for the posilock to seat against.
Your "rocker strike" or contact mark on the valve stem favours the stud side which means the pushrods are too long.
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That was going to be my question. When installing the roller rocker arms, look "inside" at the part that goes over the rocker stud, one side is flat and the opposite side is rounded. The rounded side goes down and the flat side up. The poly lock rests on the flat machined surface of the rocker arm. You may have had this one upside down... The wear on the pushrods from the guide plates indicates either they are not hardened pushrods or very cheaply made pushrods.
I would install all new rocker studs,a good set of hardened pushrods and check and re-check all your rocker arms for any damage.
David