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Re: Valve Clearances

To: john robinson <john@engr.wisc.edu>
Subject: Re: Valve Clearances
From: Dave Dahlgren <ddahlgren@snet.net>
Date: Fri, 19 Jan 2001 13:28:03 -0500
If I were you I think I might flycut the pistons just a
tad...about 0.045 in each notch. if the pistons are too thin
might be time for some thicker ones in the valave pocket
area..
Dave

john robinson wrote:
> 
> Howdy, well, I'm running a piston/cam/valve at .060 piston clearance, and
> with only 4 degrees that I can play with (2 degrees off of 0 ) without
> running into expensive noise, and I already busted this engine 3 times and
> pistons/rods/valves are expensive when added to the travel expenses and to
> say nothing of the general collapse of morale when this happens... so I
> check this stuff.
> 
> At 11:54 AM 1/19/01, you wrote:
> >clay the pistons for a .006 valve lash change.. geez i
> >thought I worked on stuff that was at the edge...
> >Dave Dahlgren
> >
> >john robinson wrote:
> > >
> > > Howdy,
> > >          I'm following my cam guys recommendations (CamCraft   one of
> > > my  sponsors!) , stock clearance for the Dodge Colt 1.6 liter engine was
> > > .010, .012,and the cam guy says .004 and .006 in,ex. although he did say 
>to
> > > clay the piston/valve clearance before running the engine with this
> > clearance.
> 
>               John Robinson, Mechanician
>    Mechanical Engineering University of Wisconsin
>                  1513 University Ave.
>                   Madison, Wi. 53706
>                      608-262-3606
>                    FAX 608-265-2316
>          Current World Land Speed Record Holder
>                   Bonneville Salt Flats
>             H/GCC 92 cu.in. 1980 Dodge Colt
>                     131.333 MPH set 1995
>                     136.666 MPH set 1996
>                     140.292 MPH set 2000
>                     144.396 MPH set 2000

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