OK ... now just what the %$#^^*&$%##$^ does "on rock" mean ... can
it actually be defined??
Not trying to be a smarta$$, but I really do not understand
>
>Note that with cylinders 2 or 3 "on rock", the TDC marks on the crankshaft
>will not be lined up, since they are for cylinders 1 & 4.
>
>There has been some discussion in the past about the fact the cam lobe is
>not pointing directly away from the lifter at this point ... some
>aftermarket cams are apparently mis-cut so the lash varies a bit depending
>on just where you measure it. It's not clear to me just where the lash
>should be measured on such a (defective) cam. But since it's the factory
>procedure, I always set my valves with the "on rock" method. I find it
>easier, especially since you only have to position the engine 4 times,
>rather than 8 with the "rule of 9" method given in the Haynes manual.
>
>Randall
--
Bill Pugh
1957 TR3 TS16765L
aka
Casper
1970 TR6 CC59179L
aka
Rosey
Wallace, CA
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