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Yamaha 40 HR / 6H4 exhaust alignment

sloth

New member
Hello,

as I was replacing the impeller on my Yamaha 40 HR I noticed that the main exhaust is not aligned with the hole on the bottom of the shaft:
https://www.bilder-upload.eu/bild-0fb403-1591829143.jpg.html

(Please let me know if that link works, I had some issues inserting the picture).

Has anyone seen something similar? How could this affect exhaust gas / water flow? Exhaust gas is coming out of the small exhaust port above the water together with a bit of cooling water, with higher rpm through the propeller as expected.

The engine was working fine, no strange noise, shaft was warm but still touchable, not really hot.

I am looking forward for your advice,
Jan
 
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