[Shotimes] don's cams, a report

[Donald Mallinson]

I think you got the wrong idea, the ENTIRE cam was ground off.  Not just 
one or two lobes.   As Doug explained it, when the cam is reground, the 
grinder can either take the time to make sure that the lobes of the 
original grind are straight up or he can eyeball it.  Apparently these 
were eyeballed.  Thus ALL lobes on each cam were off the same amount in 
the same direction.

The adjustable sprockets allow you to pretty much put the cams where you 
want.  Doug says that just taking out the dowel and using the slop in 
the bolt holes can get as much as 6-8 degrees, but using the adjustable 
sprockets allows you to set up the cams the way they were supposed to 
be, and start the tuning from scratch.  Then advance or retard as needed.

Ian, I would recommend that while the engine is still easily accessable, 
that you check the cams and degree them to make sure where they are.  
That is a good idea any time you put in a cam, but I guess we got used 
to the idea that cheap aftermarket cams for Chevy's and Fords were all 
done right.  Reground cams apparently may not have the precession that 
new cams have.

Don

Ian Fisher wrote:

>If that is the case, why not exchange them for another
>set? It seems like using adjustable sprockets won't
>get them timed properly very easily. If they are
>incorrect to start with adjustable sprockets will only
>get you so far...
>
>This is interesting. Keep us posted. My +20 cams are
>installed in my 3.2 which is waiting to be installed
>sometime this month.
>
>Ian