rklopp
Well-Known Member
- Joined
- Oct 6, 2008
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Ron said the following [https://modelenginenews.org/m5/morton.html#s1a]:
That does not seem to make sense in light of the drawing:
The Morton M-5's five cylinders are at 72° intervals with the #1 cylinder at top dead center. It seems to me that the drawing shows that the 10 tappet guide holes are located symmetrically ±20° about the cylinder centerlines. How did Ron end up with left-right asymmetry? Or is he saying the 5 larger inlet hole bosses on the casting are not as per the drawing?
![Screenshot 2024-04-23 at 8.39.12 PM.png Screenshot 2024-04-23 at 8.39.12 PM.png](https://cdn.imagearchive.com/homemodelenginemachinist/data/attach/109/109403-Screenshot-2024-04-23-at-8.39.12-PM.png)
That does not seem to make sense in light of the drawing:
![Screenshot 2024-04-23 at 8.34.44 PM.png Screenshot 2024-04-23 at 8.34.44 PM.png](https://cdn.imagearchive.com/homemodelenginemachinist/data/attach/109/109404-Screenshot-2024-04-23-at-8.34.44-PM.png)
![Screenshot 2024-04-23 at 8.35.05 PM.png Screenshot 2024-04-23 at 8.35.05 PM.png](https://cdn.imagearchive.com/homemodelenginemachinist/data/attach/109/109406-Screenshot-2024-04-23-at-8.35.05-PM.png)
The Morton M-5's five cylinders are at 72° intervals with the #1 cylinder at top dead center. It seems to me that the drawing shows that the 10 tappet guide holes are located symmetrically ±20° about the cylinder centerlines. How did Ron end up with left-right asymmetry? Or is he saying the 5 larger inlet hole bosses on the casting are not as per the drawing?