Camshaft discussion/boo-boo

[mopar@xxxxxxxxxxxx]

        Dick,,
        Oopppss, you are soooo right... Now,, about that rocker.. Is it
         a nice redwood? And how hard is it going to be to plop me back
        in it..  :)
        How about we measure cam lift, times 1.5<advertised rocker ratio>.
        The actual rocker ratio is 1.43/1.47 if anyone actually cares...
        Seeing as I have been up since 6AM Monday, I am going to bed... You
        people can camshafts at me and I won't know it, or even care...  :)
              Robb

At 08:34 AM 1/29/02 -0800, you wrote:
>Regarding measuring lift:  If you measure it at the valve stem (which I
>agree is the easy way) you are relying on the valve lifter to not leak down
>while the spring pressure is pushing it.   Of course this caution is germane
>only to those engines with hydraulic valve lifters, but all Imperials after
>1950 have those.
>
>If it is not an enormous amount of extra trouble, you can use a dial
>indicator directly on the cam lobe or on the body of the lifter, whichever
>item you can set up your indicator to ride on, then for valve lift you need
>to know the rocker shaft multiplying factor.  If you have a loose rocker
>handy, you can measure this, or it is given in some engine spec books.  If
>you are careful, you can perhaps measure this right "off your rocker", which
>we all are anyway!
>
>Dick Benjamin
>----- Original Message -----
>From: <mopar@xxxxxxxxxxxx>
>> Good morning, D2,
>> There is more to a cam than lift spec
> We can determine VALVE lift with dial indicator on tip of
>> a valve and rotate motor to cycle cam rotation
>
> So,, Dim,, go remove your valve covers and get crackin'
>> :)
>> Robb
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