Worked with a F23 Engine and a OMT compressor kit. Printed in ESun regular PLA and functioned. The space between spark plug holes and exhaust-side springs are very tight – you might have to edit the model to make it fit (worst part of this job).

X and Y size should be 25.93mm to be in scale.

Created in Blender 3.6.9 using CAD Sketcher.