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Re: New cam timing

To: Bob Van Kirk <racerbob70@yahoo.com>,
Subject: Re: New cam timing
From: Joe Lansing <kidjoevid@yahoo.com>
Date: Wed, 14 Jun 2006 08:02:37 -0700 (PDT)
OK - I've got stock height pistons, didn't shave the
head, and standard rockers. Cam is a Kent MD266, .320
intake lift, .330 exhaust lift. I've rolled the crank
over a few times and have felt no resistance...you
guys think I'm OK?

Joe

--- Bob Van Kirk <racerbob70@yahoo.com> wrote:

> Joe,
> 
>   It's a bit time consuming but first what pistons,
> rockers, cam lift and what cc's of the head are you
> using.  If the pistons are stock height and the
> rockers are the standard 1.25 to 1 ratio and you
> havn't removed much from the head then everthing is
> okay.  But if you've removed a bunch from the head
> with cc's down to 19 or less and using 1.5 rato
> rockers with high toped pistons then you must check
> the clearance...  Let know if we have to walk
> through
> the proceedure.
> 
> Bob
> 
> --- Joe Lansing <kidjoevid@yahoo.com> wrote:
> 
> > I'm an amateur going through the reassembly of my
> > 1275. This week I'm timing the cam, and Kent says:
> > 
> > After having timed in the camshaft check that
> there
> > is
> > no valve to piston contact. The minimum clearance
> > between the piston and the valve should be 1.5mm.
> In
> > multi-cam engines ensure there is no valve to
> valve
> > contact.
> > 
> > How does one check this?
> > 
> > Thanks,
> > 
> > Joe Lansing
> > 62 Sprite
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