Greetings,

Just wondering if factory engines come shimmed and if not how do I measure the distance in order to install the correct shim size on the lifter? Is it measured with a feeler guage or what, and what position is the valve in when doing so?

Charles

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'84 300SD 256,000 Gold on Brown (Mileage Award)
'86 300E 246,000 Blue on Tan