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Requires a full tool set and broad mechanical knowledge.
Probably the weakest internal design aspect of the water-boxer engine is the valve adjustment screw. Specifically, the way in which the tip of the screw comes into direct contact with the tip of the valve stem. Geometrically, this is just not an ideal interaction. VW was able to get away with it by using top-quality materials and all new parts. After 20-plus years, damage can occur to both the adjuster and the valve stem. Replacing the adjuster is no big deal, but finding parts as high-quality as the ones VW used originally is neither easy nor cheap. But the worse scenario is when the valve stem is damaged; requiring an engine tear-down to repair.
All GoWesty rebuilt engines get a set of GoWesty lash caps. These little hardened caps fit on top of each valve stem tip, adding an extra layer of hardened steel to protect the valve stem tip and creating an extra level of lubricated rotation for better longevity of the all parts involved. A set of these is highly recommended for any fresh rebuild, or even as insurance on an aging engine.
This could be the best $20 insurance policy you've ever purchased!
Fits: All 1983-91 Watercooled Vanagon
NOTE: The lash caps make the valve stems effectively longer. In order to get proper adjustment of the hydraulic valve lifter (per factory specifications) and to maintain proper geometry, it is necessary to space out the rocker arms. Our kit includes the necessary rocker arm shims and instructions for installation.
Plug 'n' Play — Requires no or basic hand tools and no mechanical knowledge.
Handy — Requires some hand & power tools and minimal mechanical knowledge.
DIY — Requires a full tool set and broad mechanical knowledge.
Pro — Requires professional-level tools, talent and experience.