What work have you done on the head. New valves??
Are the pushrods new??
John
You wrote:
>
>The problem is that I CANNOT attain the proper clearance of the rocker
arm to
>the valve by turning the adjusting screw. The rocker arms are beyond
the
>limit because the rocker supports are sitting to low. The only thing
I can
>think of is that maybe the bottom of the head has had material ground
from it
>several times over the years and now the rockers are beyond the limit
of
>proper clearance from the valves.
>
>>It isn't the valve rocker supports that adjust the height on the
>valves,
>>but the small screw at the head of each rocker that rests into >each
push
>>rod. Also around this screw is a lock nut. Generally, you >loosen
the
>>screw and stick a feeler guage (a very thin piece of metal, I >don't
have
>>the correct thickness' handy - there is one size for exhaust >and one
for
>>inlet) in between the head of the rocker and the spring. When >the
gap
>>between the rocker and the spring equals the metal gap guage, >you
tighen
>>the lock nut to keep in at the same size. You rotate the engine >and
>>repeat the same for each valve.
>
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