Hardest part of the valve adjustment for most has been getting the screws out of the bearing caps. Have more than 1 torx bit at your disposal. I only needed 1 but I am an experienced mechanic. Also DO NOT over tighten the banjo bolt for the oil feed to the cams that will break easily. Keep everything clean and I use a permanant sharpie to number the bearing caps and put and arrow on each pointing forward before removal to ensure they go back on the same place and way. DO NOT take the marked shim thickness for granted use a micrometer on every shim, both the old coming out and the new going in to be sure of the thickness. DO NOT use vaneer calipers. Intake and exhaust cams are different too so be sure they go back the same way in the same places. Once you have the new shims in and cams all tightened down make sure the sparkplugs are either out or at least disconnected and spin the engine a few times then check your clearances again.

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