Mercedes Benz W123 Valve Holder

thingiverse

When adjusting the valves on W123 and related engines, this will prevent the valve from turning. To ensure it's strong enough, apply 6 solid layers on all sides with a 50% infill. PLA material works well for this design, which was created specifically for one valve. However, it may not fit properly on other valves if fuel injectors are already installed.