[Roadsters] measuring a cam

[Ronnie Day]

First, it'll be hard to accurately measure duration on the cam itself, but
you can easily measure the lift. Measure a lobe across the shortest
dimension and then measure from the top of the lobe to the opposite side.
The difference is the lift, at the cam. you'd need to multiply that number
by any any additional lift built into the rockers, I think maybe a 1.5:1
ratio? However, IIRC, "B" cams have that "B" and maybe some other info
stamped in the flat surface on the aft end of the cam. You should be able
to read that using a small pocket mirror.

HTH,
Ron

On Wed, Dec 7, 2011 at 7:53 AM, Tim <tputland at charter.net> wrote:

> I guess I might need to be more clear...
>
> I want to determine if 2000 cam I have is actually the "B" grind I was
> told it was when I bought the head. So I need to measure for lift and
> duration (right?) to determine the grind of this cam.
>
> Thanks!
>
>
> On Wed, Dec 7, 2011 at 6:10 AM, Tim wrote:
>
>  Can someone please send me a picture, drawing, diagram, hyrogliphic,
>> .jpg, .gif, bitmap, etc that clearly shows where I need to put the
>> micrometer in order to get an accurate measure of a cam shaft?
>>
>> A shot of a cam with the micrometer actually in/on the two spots needed
>> to be measured would be greatly appreciated.
>>
>> Thanks very much!!!
>>
>> Tim
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