[Fot] Kastner A7 in 1147 Spitfire Questions

[Larry Young]

That should have been lobe center at 107 not 108.

On 10/5/2013 12:00 PM, Larry Young wrote:
> Isn't the 0.013 supposed to be cam lift, not valve lift?  I find it is 
> much more accurate to set the cam by lobe center. At 0.013 you can get 
> a lot of error because the lift changes so slowly.  If the lobe is 
> symmetric the center is at 108 for the 42-76 numbers.  I would suggest 
> you thoroughly degree the cam, i.e. measure the entire profile for #1 
> inlet and outlet.  You can then determine what you've got regarding 
> duration, lobe separation, profile symmetry, etc.  I explain how on my 
> website and provide a sample spreadsheet 
> (http://tildentechnologies.com/Cams/Tips_Takes.html). Let me know if 
> you need some help.
> Larry Young
>
> On 10/4/2013 Isn't2:05 PM, Joe Guinan wrote:
>>
>> I know I have TDC on the crank set correctly. I'm seeing 42 degrees 
>> on the
>> degree wheel when the dial indicator on the top of the pushrod shows the
>> valve has opened .013 inch.
> Ex