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Valve Cover Mod

on Sat Apr 07, 2018 5:12 pm
Valve Cover Mod

Most early and even later Renix 4.0s could be bothered by excessive oil in the air cleaner box.

Remove the valve cover and turn it over. Next, remove the fluted tubes that are now facing you by removing three screws on each.



Chop 1 inch off each of them. Then, drill a half inch hole as shown in the photo. The flat side of the flute that’s closest to the edge of the valve cover.


Clean and de-burr/sand all rough edges nicely, clean with solvent, and reinstall. Don’t be concerned about the chintzy gaskets that will probably crumble into oblivion when you remove the fluted tubes. They can go back together without gaskets.
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