Broken Valve Spring

Helmsman wrote

Curious, what does that mean?

Does this answer your question?

RocketyMan wrote

Does this answer your question?

To further clarify…#1 is the front bearing and #5 is the rear bearing(thrust).
If you drop the oil pan you can see the laser etching on the first counter weight. The engraving on the block can be seen on the outside, where the block and the head meets(looking down, from the top).
It’s a cool interesting fact to see how close to Green your engine is!

This guy made great detailed video about building S65.

For sure! It’s a great video, I have watched it a few times.

Thank you all for the PhD level thread and amazing knowledge you are sharing!

Slowly but surely. S65 is an amazing engine to work on! I love these engines.