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Re: [T3] Swivel Feet Adjusters

On 28 Jun 2002, at 12:24, Jaranson, John (J.W.) wrote:

> So I need 0.250" additional space.
> The supplied shims are 0.060".
> Shortening the pushrods by 0.080" gets me another 0.088" when you account
> for the ratio of the rocker arm.
> This leaves me with a touch over 0.100" to shave off of the rocker arm.
> So I take off 0.125" (1/8") to allow for future adjsutablility.
> Still too much?  How much do you take off typically Jim?  Should I shorten
> the pushrod more?  Use thicker shims?  Go back to the OEM adjusters?

I shim .020 or .040". I shorten the pushrods by about .040 to .060" (if the 
heads have been flycut, you can add the flycut depth to the amount you 
remove.) I probably take off more than .125 from the face of the rocker 
(measured from the original face to the inside of the chamfer left by the oval 
carbide cutter.

The ONE thing you really don't want to do is to use shims as thick as .060 
(unless your valves have been sunk in the heads.) The original geometry is 
exactly right for stock springs and lift; I have not done the calculations for 
other springs/lifts.

Jim Adney
Madison, WI 53711-3054

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