head machining

[krobins2@twcny.rr.com (Kenneth & Georgianna Robinson)]

So how much more advanced my engine will be,after shaving the head .040"??
Ken R.
----- Original Message -----
From: "Allyn" <amalventano1@comcast.net>
To: <alienj@bad-candy.com>; <scirocco-l@scirocco.org>
Sent: Friday, May 31, 2002 11:26 AM
Subject: Re: head machining


> umm, 20 degrees? one full tooth is worth like 7 degrees, so any machining
cant possibly cause more of a difference than that. if im
> picturing it correctly, as you machine the head it effectively gets more
advanced (a good thing), until you get to 3-4 degrees
> advanced, where you can just go to the next tooth and end up with a couple
of degrees retard.
> so in the end you dont need that much travel on the adj. cam gear, and if
you want cam timing dead on, then in theory you need the
> cam gear regardless of how much you machine.
> Al
>
> ----- Original Message -----
> From: "fryer" <alienj@bad-candy.com>
> To: <scirocco-l@scirocco.org>
> Sent: Friday, May 31, 2002 6:19 AM
> Subject: head machining
>
>
> > hi all i was wondering how far from stock minimum the head can be
> > decked before i need an adjustable cam gear with 20 degrees of
> > travel. thanks all
> > chris fryer
> > 85 8v jh head scirocco
> > 87 vanagon syncro gl
> >
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