Installation of Neville Lush Racing "street" cams in 2014 Rocket III Touring

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No, being my first time, I'm having a number of "Oh, I shudda had a V-8" moments.

I don't understand this shim business. I sure want to get the units right. And good gracious looking on the Hermy's web site those shims are listed in ten thousandths and I can't begin to measure to that level, so how would one decide to order a particular shim ? And wow, @$8.00 plus shipping, this could be a bit pricey.

Paul....Don't forget this post I made once upon a time.
 
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I don't understand this shim business.

Paul, here's a simple (not to scale) drawing that I've just done to show the basic Valve, Bucket, Shim, Cam set up.

The Drawing on the left shows the individual components.
The Blue being the Shim, the green being the bucket that sits over the valve and has the shim sitting in the top of it.
Then above that, the camshaft.

The R/H drawing shows all these piece's as they would sit in the Engine (again, not to scale)
The Camshaft and valve are in a fixed position (relatively)
The "valve clearance" is determined by the thickness of the Shim.
Too thick a shim, .... no clearance.
Too thin a shim, ......excess clearance.

upload_2018-5-28_12-32-0.png


This Dwg. shows a shim too thin (exaggerated) so therefore excess clearance.

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Hope this helps.
 
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