Do you hate the gritty sound of abrasive sand when you screw in the oil fill cap on a concave opening in the valve cover? How about the frustration of not being able to wipe out the tube section of a funnel - you know there's grit in there ready to wash into the engine when you pour in the oil.
Picked up a Spectre funnel cap (eBay; $10). It permanently raise the fill opening so no more grit ingression. It's also a funnel. The whole contraption is a single unit. It's ugly, but effective.
Terrible valve cover fill hole design:
The gizmo in a collapsed state:
Fill cap closed:
THe funnel-cap extended, ready for oil.
Picked up a Spectre funnel cap (eBay; $10). It permanently raise the fill opening so no more grit ingression. It's also a funnel. The whole contraption is a single unit. It's ugly, but effective.
Terrible valve cover fill hole design:
The gizmo in a collapsed state:
Fill cap closed:
THe funnel-cap extended, ready for oil.